CN111763082A - 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用 - Google Patents

一种钛酸锶钡基介质陶瓷材料及其制备方法和应用 Download PDF

Info

Publication number
CN111763082A
CN111763082A CN201910258238.7A CN201910258238A CN111763082A CN 111763082 A CN111763082 A CN 111763082A CN 201910258238 A CN201910258238 A CN 201910258238A CN 111763082 A CN111763082 A CN 111763082A
Authority
CN
China
Prior art keywords
equal
source
dielectric
less
strontium titanate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910258238.7A
Other languages
English (en)
Other versions
CN111763082B (zh
Inventor
陈莹
董显林
李鑫
江峰
王勇坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Institute of Ceramics of CAS
Original Assignee
Shanghai Institute of Ceramics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Institute of Ceramics of CAS filed Critical Shanghai Institute of Ceramics of CAS
Priority to CN201910258238.7A priority Critical patent/CN111763082B/zh
Priority to US16/831,631 priority patent/US11292747B2/en
Publication of CN111763082A publication Critical patent/CN111763082A/zh
Application granted granted Critical
Publication of CN111763082B publication Critical patent/CN111763082B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/453—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
    • C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
    • C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
    • C04B35/47—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on strontium titanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C04B35/6262—Milling of calcined, sintered clinker or ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/6342—Polyvinylacetals, e.g. polyvinylbutyral [PVB]
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/5116—Ag or Au
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/88—Metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • C04B2235/3234—Titanates, not containing zirconia
    • C04B2235/3236—Alkaline earth titanates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/443—Nitrates or nitrites
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/604—Pressing at temperatures other than sintering temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/95—Products characterised by their size, e.g. microceramics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明涉及一种钛酸锶钡基介质陶瓷材料及其制备方法和应用，所述钛酸锶钡基介质陶瓷材料的组成配方包括：aBaTiO3+bSrTiO3+cTiO2+dBiO5+e MgO+fAl2O3+gCaO+hSiO2，其中a、b、c、d、e、f、g、h为各组分的摩尔百分比，20≤a≤50mol%，15≤b≤30mol%，10≤c≤20mol%，0≤d≤10mol%，0≤e≤35mol%，0≤f≤6mol%，0≤g≤6mol%，0≤h≤1mol%，且a+b+c+d+e+f+g+h=100 mol%。

Description

一种钛酸锶钡基介质陶瓷材料及其制备方法和应用
技术领域
本发明涉及一种高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料及其制备方法和应用，属于电子陶瓷材料技术领域。
背景技术
电容器是电子设备中大量使用的主要元件之一，具有隔直、耦合、旁路、滤波、调谐回路、能量转换、控制电路等能力。在门类繁多的电容器中，陶瓷介质电容器因其依靠外电场下的极化响应而存储能量，能实现电能以静电荷形式直接存储于两极板中，该过程不涉及物质的扩散，因此具有极高的充放电速度，从而具有很高的输出功率密度。同时其高的介电常数、耐高温、耐腐蚀性能使其在闪光照相、高功率微波、高功率射频技术、材料研究等领域有着广阔的应用前景，具有重要的社会效益和可观的经济效益。随着科技的日益发展和应用环境的变化，瓷介电容器的制备趋向于高电压梯度、小型化、环保、高可靠和低成本发展。因此，必须开发具有高耐电强度、高介电常数、低介电损耗和低电容变化率的介质陶瓷材料及电容器。目前，世界上许多国家正在积极研究和开发具有高耐电强度、高介电常数、低介电损耗和外场下介电性能稳定的介质陶瓷材料及其电容器。
陶瓷介质电容器性能主要取决于其陶瓷介质，根据在电场下不同的极化响应机制，陶瓷介质分为四类：线性介质、铁电介质、弛豫铁电介质和反铁电介质。线性电介质在外场下介电常数基本保持不变，通常具有高的耐电强度和低介电损耗，但是介电常数较小，不利于储能；铁电介质具有高的介电常数但其耐电强度不高，电场作用下介电常数急剧下降，温度稳定性差，器件寿命和稳定性方面有待提高；反铁电介质有较高的介电常数和较小的剩余极化强度，但是其在外场(电场、温场)下，介电常数也不稳定，同时因反铁电-铁电相变伴随着较大的应变，在转折电场下极易发生击穿，耐电强度很难提高。
陶瓷电容的储能密度、储能效率和介电常数、耐电强度存在以下关系，如以下公式：
Figure BDA0002014452870000011
η＝Wrec/W(3)；其中，W为最大储能密度，Wrec为可回复储能密度，η为储能效率。介电常数越高、耐电强度越大，储能密度越高。电场下电极化性能越稳定，剩余极化强度越小，储能效率越高。从介质材料的本征属性上看，因其高的介电常数源于d轨道的杂化，外场下，介电常数越高，介电性能稳定性越差，耐电性能也越差。如何制备出兼具高耐电强度、高介电常数和高介电性能稳定的陶瓷介质是当前高功率储能电容器亟待解决的瓶颈问题。钛酸锶钡((BaxSr1-x)TiO3，简称BST)是钛酸钡(BaTiO3)和钛酸锶(SrTiO3)的完全固溶体，具有高的介电常数，低的介电损耗，改变Ba/Sr比例能够在很宽的温度范围内调节材料的介电性能。与其他材料体系相比，更适合用于制造高功率储能电容器，人们对(Ba，Sr)TiO3基材料进行了广泛的研究。若是，Ba/Sr比的增加有利于介电常数增大，即电极化强度增大，然而会导致耐电强度的下降，储能密度下降。然而，Mg、Al、Zr、Si等氧化物的增加，虽有利于耐电强度的增大，但其介电常数的下降，储能密度也会下降。H.B.Yang等(J.Eur.Ceram.Soc.38，1367–1373(2018))在Ba0.4Sr0.6TiO3中添加Bi2O3-B2O3-SiO2玻璃料，在279kV/cm下得到最大储能密度为1.98J/cm3。
发明内容
针对上述问题，本发明的目的在于提供一种兼具高耐电强度、高介电常数和高介电性能稳定性的陶瓷体系及其制备方法。
一方面，本发明提供了一种高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料，所述钛酸锶钡基介质陶瓷材料的组成配方包括：aBaTiO3+bSrTiO3+cTiO2+dBiO5+e MgO+fAl2O3+gCaO+hSiO2，其中a、b、c、d、e、f、g、h为各组分的摩尔百分比，20≤a≤50mol％，15≤b≤30mol％，10≤c≤20mol％，0≤d≤10mol％，0≤e≤35mol％，0≤f≤6mol％，0≤g≤6mol％，0≤h≤1mol％，且a+b+c+d+e+f+g+h＝100mol％。
本发明中，以(Ba，Sr)TiO3基介质材料为基，经过大量的实验研究，研发出新材料体系，通过多离子协同掺杂，调控陶瓷微结构，提高基体的抗还原性，减少离子缺陷，拓宽陶瓷铁电-顺电相变温区，从而在保持高介电常数的同时，大幅度提高陶瓷的耐电性能及其介电性能稳定性，突破现有技术瓶颈。
较佳地，所述高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料的耐电强度为38～52kV/mm@0.38mm厚度，介电常数在800～2000可调，介电损耗≤0.003(@1kHz)，有效储能密度高达8.6J/cm3@660kV/cm，介电常数随温度变化率≤7％(0℃～40℃)，频率稳定性好，直流电阻率高达1012Ω.cm以上(@100℃)。
另一方面，本发明还提供了一种如上述的高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料的制备方法，包括：
按照化学组成称Ti源、Ba源、Sr源、Bi源、Mg源、Ca源、Al源和Si源，混合并进行预烧，得到混合粉体；
将粘结剂加入所得混合粉体中后喷雾造粒，并压制成型，得到生坯；
将所得生坯在1220～1300℃下进行烧结，得到所述高介电常数、高耐电强度钛酸锶钡基介质陶瓷材料。
较佳地，所述Ti源为TiO2、C16H36O4Ti、C12H28O4Ti、SrTiO3、BaTiO3、TiCl4中的至少一种；所述Ba源为BaO、BaCO3、C4H6BaO4、Ba(NO3)2和BaTiO3中的至少一种；所述Sr源为SrO、SrCO3、C4H6SrO4、Sr(NO3)2和SrTiO3中的至少一种；所述Bi源为Bi2O3、BiCl3、Bi(OH)3、Bi5(OH)9(NO3)4中的至少一种；所述MgO源为MgO、MgCO3、C4H6MgO4和MgTiO3中的至少一种，所述CaO源为CaO、CaCO3、C4CaH6O4·H2O和CaTiO3中的至少一种，所述Al源为Al2O3、Al(NO3)3、Al(OH)C4H6O4中的至少一种，所述Si源为SiO2，(C2H5O)4Si、C16H36O4Si中的至少一种。
较佳地，所述预烧的温度为1000℃～1150℃，时间为2～12小时。
较佳地，所述混合粉体的粒径为0.2～2.5μm。
较佳地，所述粘结剂为聚乙烯醇、聚乙烯醇缩丁醛和甲基纤维素中的至少一种，加入量为混合粉体总质量的0.2～3wt％，优选为0.5～1wt％。
较佳地，所述成型方式为等静压成型，所述等静压成型的压力为180～300MPa。
较佳地，所述烧结时间为2～24小时，其中，烧结时间随配制粉体的摩尔数的增加而延长。将所得生坯在1220～1300℃下进行烧结，得到所述兼具高耐电强度、高介电常数和高介电性能稳定性的陶瓷。
与现有技术相比，本发明采用传统固相法制得钛酸锶钡基介质陶瓷材料的具有极高的耐电强度和储能密度(如：介电常数1080的样品耐电强度：40kV/mm@1mm厚，52kV/mm@0.38mm厚，66kV/mm@0.14mm厚；有效储能：w:8.6J/cm3、η:71％@660kV/cm，w:2.1J/cm3、η:80％@223kV/cm)，介电常数在800～2000可调，介电损耗≤0.003@1kHz，且外场下介电性能稳定，介电常数随温度变化率≤7％(0℃～40℃)，频率稳定性好，直流电阻率高达1012Ω.cm以上(@100℃)。所得材料具有介电常数高、耐高压、介电性能稳定性好、无铅环保、制备工艺简单等优点，具有显著应用价值，非常适用于制作高频、高压电容器，脉冲形成线等。
附图说明
图1为本发明实施例1-4制备的钛酸锶钡基介质陶瓷材料的介电常数/介电损耗标准片照片；
图2为本发明实施例1-4制备的钛酸锶钡基介质陶瓷材料的耐电强度标准片照片；
图3为本发明实施例1制备的长条状状的钛酸锶钡基介质陶瓷材料(长300mm×宽40mm×厚5mm)；
图4为本发明实施例1制备的钛酸锶钡基介质陶瓷材料的陶瓷标准片的介电频谱图；
图5为本发明实施例1制备的大圆饼陶瓷的介电频谱图；
图6为本发明实施例1制备的钛酸锶钡基介质陶瓷材料的介电温谱图；
图7为本发明实施例1制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率的图谱；
图8为本发明实施例1制备的钛酸锶钡基介质陶瓷材料的在强场下的电滞回线；
图9为本发明实施例1制备的钛酸锶钡基介质陶瓷材料的直流电阻率随温度的变化曲线；
图10为本发明实施例2制备的钛酸锶钡基介质陶瓷材料的介电温谱图；
图11为本发明实施例2制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率的图谱；
图12为本发明实施例3制备的钛酸锶钡基介质陶瓷材料的介电温谱图；
图13为本发明实施例3制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率的图谱；
图14为本发明实施例4制备的钛酸锶钡基介质陶瓷材料的介电温谱图；
图15为本发明实施例4制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率的图谱；
图16为本发明实施例5制备的钛酸锶钡基介质陶瓷材料的介电温谱图；
图17为本发明实施例5制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率的图谱；
图18为本发明实施例1-5制备的钛酸锶钡基介质陶瓷材料的介电常数温度变化率对比图谱。
具体实施方式
以下通过下述实施方式进一步说明本发明，应理解，下述实施方式仅用于说明本发明，而非限制本发明。
在本公开中，高耐电强度、高介电常数和高介电性能稳定性的钛酸锶钡基介质陶瓷材料体系的组成配方包括：aBaTiO3+bSrTiO3+cTiO2+dBiO5+eMgO+fAl2O3+gCaO+hSiO2，其中a、b、c、d、e、f、g、h为各组分的摩尔百分比，20≤a≤50mol％，15≤b≤30mol％，10≤c≤20mol％，0≤d≤10mol％，0≤e≤35mol％，0≤f≤6mol％，0≤g≤6mol％，0≤h≤1mol％，且a+b+c+d+e+f+g+h＝100mol％。在组分配比里，若是TiO2含量过高，所得材料介电常数会大幅下降，介电损耗也会上升，储能密度和储能效率都会下降；若是TiO2含量过低，所得材料的介电性能在外场下稳定性会大幅度下降，储能效率下降。
在可选的实施方式中，20≤a≤50mol％，15≤b≤30mol％，10≤c≤20mol％，3≤d≤10mol％，4≤e≤35mol％，0≤f≤6mol％，3≤g≤6mol％，0.1≤h≤1mol％，且a+b+c+d+e+f+g+h＝100mol％。
在本公开中，钛酸锶钡基介质陶瓷材料具有无铅环保、制备工艺简单、可制备大尺寸样件等优点。非常适用于各种高压储能传输介质的制造，在大功率和脉冲功率领域有着极大的应用价值。以下示例性地说明钛酸锶钡基介质陶瓷材料的制备方法。
按照化学组成(aBaTiO3+bSrTiO3+cTiO2+dBiO5+e MgO+fAl2O3+gCaO+hSiO2)称Ti源、Ba源、Sr源、Bi源、Mg源、Ca源、Al源和Si源，混合并进行预烧，得到混合粉体。其中，Ti源选自TiO2、C16H36O4Ti、C12H28O4Ti、SrTiO3、BaTiO3、TiCl4等。Ba源选自BaO、BaCO3、C4H6BaO4、Ba(NO3)2和BaTiO3等。Sr源选自SrO、SrCO3、C4H6SrO4、Sr(NO3)2和SrTiO3等。Bi源选自Bi2O3、BiCl3、Bi(OH)3、Bi5(OH)9(NO3)4等。MgO源选自MgO、MgCO3、C4H6MgO4和MgTiO3等。CaO源选自CaO、CaCO3、C4CaH6O4·H2O和CaTiO3等。Al源选自Al2O3、Al(NO3)3、Al(OH)C4H6O4等。Si源选自SiO2，(C2H5O)4Si、C16H36O4Si等。通过进一步研磨或球磨，使得所得预烧后的混合粉体的粒径在0.2～2.5μm之间，以便进行后续的压制成型。
在可选的实施方式中，预烧时间随配制粉体的摩尔数的增加而延长。控制预烧的温度可为1000℃～1150℃。预烧的时间可为2～12小时。
将粘结剂加入混合粉体中后喷雾造粒，并压制成型，得到生坯。其中，粘结剂可为聚乙烯醇、聚乙烯醇缩丁醛和甲基纤维素等。粘结剂的加入量可为混合粉体总质量的0.2～3wt％，优选为0.5～1wt％。成型方式可为等静压成型、干压成型等。其中，等静压成型的压力可为180～300MPa。
将生坯在1220～1300℃下进行烧结，得到钛酸锶钡基介质陶瓷材料。通过控制随配制粉体的摩尔数的改变调整烧结温度和保温时间。烧结保温时间可为2～24小时。当MgO、Al2O3或CaO中的一种或几种同时大量增加时提高烧结温度或同时增加保温时间，当Bi2O3、或SiO2中的一种或几种同时大量增加时降低烧结温度或同时降低保温时间。
将钛酸锶钡基介质陶瓷材料制备成标准陶瓷片，然后被银电极烧银，最后分别介电性能和耐电强度测试。
此外，本发明中所得高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料可至少实现一个维度上的尺寸≥300mm。
下面进一步例举实施例以详细说明本发明。同样应理解，以下实施例只用于对本发明进行进一步说明，不能理解为对本发明保护范围的限制，本领域的技术人员根据本发明的上述内容作出的一些非本质的改进和调整均属于本发明的保护范围。下述示例具体的工艺参数等也仅是合适范围中的一个示例，即本领域技术人员可以通过本文的说明做合适的范围内选择，而并非要限定于下文示例的具体数值。
实施例1
按0.27BaTiO3+0.22SrTiO3+0.13TiO2+0.036Bi2O3+0.29MgO+0.012Al2O3+0.04CaO+0.002SiO2配方组成称量BaTiO3、SrTiO3、TiO2、Bi2O3、MgO、Al2O3、CaCO3和SiO2原料，以水为介质、玛瑙球为磨介，湿法球磨24h后，出料、烘干，将得到的粉料在1050℃下预烧6h；再次进行湿法球磨，烘干后得到颗粒度为0.5～1.0μm的混合粉体；向所得混合粉体中加入重量为混合粉体总重量的0.8wt％聚乙烯醇(PVA)进行喷雾造粒，然后在200MPa的等静压下压制成不同尺寸生坯；将所得生坯在1270℃下烧结10h，然后自然冷却到室温，即得陶瓷块体；将所得陶瓷块体经切割、细磨加工，分别得到长300mm×宽40mm×厚5mm(如图3，加工烧银后陶瓷)以及直径30mm×厚1mm、30mm×厚0.38mm、30mm×厚0.14mm的小圆盘片。
将所得陶瓷片被银电极烧银后分别介电性能和耐电强度测试，图4为本实施例中的陶瓷标准片(直径30mm，厚1mm)的介电频谱图，由图4可见：所得陶瓷材料在100Hz～1MHz频率范围，其介电常数在1080左右，随频率基本不变，介电损耗～0.0015@1kHz。图6为本发明实施例制备的大圆饼陶瓷的介电频谱图，由图5可见：所得虽然陶瓷尺寸大幅度增大，但其在100Hz～1MHz频率范围，电容值随频率基本不变，介电损耗～0.0015@1kHz。图6为本发明实施例制备的陶瓷的介电温谱图，图7为本发明实施例制备的陶瓷的介电常数温度变化率的图谱，由图6、图7可见，介电常数从-50℃开始随温度升高逐渐下降，其变化率为+4.8～-4.7(@-0℃～40℃)。图8为本发明实施例制备的陶瓷的在不同电场下的电滞回线，由图8可见，随着电场增大，直到强场，极化强度增大，陶瓷的电极化率逐渐趋于不稳定，但具有很高的储能效率，有效储能密度和效率分别为：w:8.6J/cm3η:71％@660kV/cm；w:2.1J/cm3，η:80％@223kV/cm)。所得陶瓷的室温耐电强度分别为～40.5kV/mm，51.6kV/mm，66kV/mm(@1mm，0.38mm，0.14mm)。图9为本发明实施例制备的陶瓷的直流电阻率随温度的变化曲线，由图9可见，从40℃到150℃，该陶瓷的电阻率从6.5×1013Ω.cm降到1.4×1011Ω.cm，虽然随温度的升高而逐渐降低，但在100℃仍然在1012Ω.cm以上，说明此材料具有很好的绝缘性能。所得钛酸锶钡基介质陶瓷材料的储能密度和储能效率通过TF-2000铁电分析仪测试陶瓷的电极化强度与电场的关系，再用Origin软件积分计算获得)。
实施例2
按0.25BaTiO3+0.20SrTiO3+0.13TiO2+0.036Bi2O3+0.33MgO+0.012Al2O3+0.04CaO+0.002SiO2配方组成称量BaTiO3、SrTiO3、TiO2、Bi2O3、MgO、Al2O3、CaCO3和SiO2原料，按照与实施例1相同的工艺制备陶瓷，烧结温度为1270℃保温4h。图10为本实施例中陶瓷的介电温谱图，图11为本发明实施例中制备的陶瓷的介电常数温度变化率的图谱，由图10、图11可见，本发明实施例中制备的陶瓷室温介电常数在1020左右，介电损耗～0.0024@1kHz，介电常数从-50℃开始随温度升高逐渐下降，其变化率为+4.6～-4.7(@-0℃～40℃)。室温耐电强度分别为～43.7kV/mm，52.3kV/mm(@1mm，0.38mm)。
实施例3
按0.28BaTiO3+0.23SrTiO3+0.15TiO2+0.04Bi2O3+0.245MgO+0.013Al2O3+0.04CaO+0.002SiO2按照与实施例1相同的工艺制备陶瓷，烧结温度为1270℃保温4h。图12为本实施例中陶瓷的介电温谱图，图13为本发明实施例中制备的陶瓷的介电常数温度变化率的图谱，由图12、图13可见，本发明实施例中制备的陶瓷的室温介电常数在1228左右，介电损耗～0.0004@1kHz，介电常数从-50℃开始随温度升高逐渐下降，其变化率为+5.0～-4.9(@-0℃～40℃)。室温耐电强度分别为～38.4kV/mm，48.7kV/mm(@1mm，0.38mm)。
实施例4
按0.412BaTiO3+0.275SrTiO3+0.16TiO2+0.055Bi2O3+0.04MgO+0.055CaO+0.003SiO2按照与实施例1相同的工艺制备陶瓷，烧结温度为1260℃保温4h。图14为本实施例中陶瓷的介电温谱图，图15为本发明实施例中制备的陶瓷的介电常数温度变化率的图谱，由图14、图15可见，本发明实施例中制备的陶瓷室温介电常数在1385左右，介电损耗～0.0021@1kHz，介电常数从-50℃开始随温度升高逐渐下降，其变化率为+4.2～-6.4(@-0℃～40℃)。室温耐电强度～35.8kV/mm，44.4kV/mm(@1mm，0.38mm)。
实施例5
按0.466BaTiO3+0.25SrTiO3+0.12TiO2+0.06Bi2O3+0.04MgO+0.06CaO+0.004SiO2按照与实施例1相同的工艺制备陶瓷，烧结温度为1250℃保温4h。图16为本实施例中陶瓷的介电温谱图，图17为本发明实施例中制备的陶瓷的介电常数温度变化率的图谱，由图16、图17可见，本发明实施例中制备的陶瓷室温介电常数在1611左右，介电损耗～0.0016@1kHz，介电常数从-50℃开始随温度升高逐渐下降，其变化率为+6.4～-5.8(@-0℃～40℃)，室温耐电强度～30.5kV/mm，38.2kV/mm(@1mm，0.38mm)。
表1为本发明中实施例1-5制备的钛酸锶钡基介质陶瓷圆片(直径30mm)的介电性能参数表：
Figure BDA0002014452870000081
在本发明的材料体系中，BaTiO3、SrTiO3、MgO和Al2O3的含量很大程度上调控着陶瓷的介电常数，尤其是BaTiO3含量的增加陶瓷介电常数增大。MgO和Al2O3的增加陶瓷介电常数变小。TiO2、Bi2O3、CaO的含量决定着陶瓷介电居里峰的宽化程度，即陶瓷的介电性能的温度稳定性。从实施例2中，可见实施例BaTiO3、SrTiO3、MgO和Al2O3的含量的综合影响很大程度上调控着陶瓷的介电常数。
综上实验结果可见：本发明的材料体系可制备出高介电常数、高耐电强度、高介电性能稳定的陶瓷材料，所制得的介质陶瓷材料的耐电强度高达52kV/mm，介电常数在800～2000之间可调，介电损耗小于0.003(@1kHz)，介电常数随温度变化率≤7％(0℃～40℃)，频率稳定性好，且所述材料还具有无铅环保、制备工艺简单等优点。非常适用于高频电容器，超高压电容器、固态脉冲形成线等元器件，在大功率和脉冲功率领域有着极大的应用价值。
最后有必要在此说明的是：以上实施例只用于对本发明的技术方案作进一步详细地说明，不能理解为对本发明保护范围的限制，本领域的技术人员根据本发明的上述内容作出的一些非本质的改进和调整均属于本发明的保护范围。

Claims (10)

1.一种高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料，其特征在于，所述钛酸锶钡基介质陶瓷材料的组成配方包括：aBaTiO3+bSrTiO3+cTiO2+dBiO5+eMgO+fAl2O3+gCaO+hSiO2，其中a、b、c、d、e、f、g、h为各组分的摩尔百分比，20≤a≤50mol%，15≤b≤30mol%，10≤c≤20mol%，0≤d≤10mol%，0≤e≤35mol%，0≤f≤6mol%，0≤g≤6mol%，0≤h≤1mol%，且a+b+c+d+e+f+g+h =100 mol%。
2.根据权利要求1所述的钛酸锶钡基介质陶瓷材料，其特征在于，所述钛酸锶钡基介质陶瓷材料的耐电强度为38～52 kV/mm（@厚度=0.38mm），介电常数为800～2000之间，介电损耗＜0.003（@1kHz，25℃），有效储能密度高达8.6 J/cm3 @660 kV/cm。
3.根据权利要求1或2所述的钛酸锶钡基介质陶瓷材料，其特征在于，所述钛酸锶钡基介质陶瓷材料的介电常数在0℃～40℃之间的变化率 ≤7%，直流电阻率高达1012Ω.cm以上（@100℃）。
4.一种如权利要求1-3中任一项所述的高介电常数、高耐电强度、高介电性能稳定的钛酸锶钡基介质陶瓷材料的制备方法，其特征在于，包括：
按照化学组成称Ti源、Ba源、Sr源、Bi源、Mg源、Ca源、Al源和Si源，混合并进行预烧，得到混合粉体；
将粘结剂加入所得混合粉体中后喷雾造粒，并压制成型，得到生坯；
将所得生坯在1220～1300℃下进行烧结，得到所述高介电常数、高耐电强度钛酸锶钡基介质陶瓷材料。
5.根据权利要求4所述的制备方法，其特征在于，所述Ti源为TiO2、C16H36O4Ti、C12H28O4Ti、SrTiO3、BaTiO3、TiCl4中的至少一种；所述Ba源为BaO、BaCO3、C4H6BaO4、Ba(NO3)2和BaTiO3中的至少一种；所述Sr源为SrO、SrCO3、C4H6SrO4、Sr(NO3)2和SrTiO3中的至少一种；所述Bi源为Bi2O3、BiCl3、Bi(OH)3、Bi5(OH)9 (NO3)4中的至少一种；所述MgO源为MgO、MgCO3、C4H6MgO4和MgTiO3中的至少一种；所述CaO源为CaO、CaCO3、C4CaH6O4·H2O和CaTiO3中的至少一种；所述Al源为Al2O3、Al(NO3)3、Al(OH)C4H6O4中的至少一种；所述Si源为SiO2、(C2H5O)4Si、C16H36O4Si中的至少一种。
6.根据权利要求4或5所述的制备方法，其特征在于，所述预烧的温度为1000℃～1150℃，时间为2～12小时。
7.根据权利要求4-6中任一项所述的制备方法，其特征在于，所述混合粉体的粒径为0.2～2.5μm。
8.根据权利要求4-7中任一项所述的制备方法，其特征在于，所述粘结剂为聚乙烯醇、聚乙烯醇缩丁醛和甲基纤维素中的至少一种，加入量为混合粉体总质量的0.2～5wt%。
9.根据权利要求4-8中任一项所述的制备方法，其特征在于，所述成型方式为等静压成型，所述等静压成型的压力为180～300 MPa。
10.根据权利要求4-9中任一项所述的制备方法，其特征在于，所述烧结时间为2～24小时。
CN201910258238.7A 2019-04-01 2019-04-01 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用 Active CN111763082B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910258238.7A CN111763082B (zh) 2019-04-01 2019-04-01 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用
US16/831,631 US11292747B2 (en) 2019-04-01 2020-03-26 Barium strontium titanate-based dielectric ceramic materials, preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910258238.7A CN111763082B (zh) 2019-04-01 2019-04-01 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用

Publications (2)

Publication Number Publication Date
CN111763082A true CN111763082A (zh) 2020-10-13
CN111763082B CN111763082B (zh) 2021-08-31

Family

ID=72606671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910258238.7A Active CN111763082B (zh) 2019-04-01 2019-04-01 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用

Country Status (2)

Country Link
US (1) US11292747B2 (zh)
CN (1) CN111763082B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671681A (zh) * 2022-04-11 2022-06-28 北京科技大学 一种兼具高储能密度，高功率密度和高效率的钛酸钡基弛豫铁电陶瓷材料及其制备方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112341189B (zh) * 2020-11-25 2022-08-02 无锡鑫圣慧龙纳米陶瓷技术有限公司 一种温度稳定型低介电常数微波介质陶瓷及其制备方法
CN112661508B (zh) * 2021-01-20 2022-12-13 西北大学 一种低烧高储能锆钛酸锶钡基陶瓷材料及其制备方法
CN114292104B (zh) * 2021-12-28 2023-05-30 摩比天线技术（深圳）有限公司 一种脉冲电容器用储能陶瓷材料及其制备方法
CN114560695B (zh) * 2022-03-04 2022-10-18 黄河科技学院 一种高储能密度和高储能效率的复合陶瓷材料制备方法
CN115368132B (zh) * 2022-07-21 2023-07-18 桂林理工大学 一种钛酸钡基陶瓷材料及制备方法
CN115108826B (zh) * 2022-07-28 2023-06-06 哈尔滨工业大学 一种低电场驱动高储能密度和超快放电速率的弛豫铁电陶瓷材料及其制备方法
CN115724660A (zh) * 2022-12-14 2023-03-03 天津师范大学 一种钛酸钡/正二钛酸钙复合陶瓷及其制备方法和应用
CN116199508B (zh) * 2023-03-13 2023-12-05 人民华智通讯技术有限公司 一种5g波导滤波器用微波介质材料及其制备方法、应用
CN116444266B (zh) * 2023-04-03 2023-11-21 昆明理工大学 一种Ba0.6Sr0.4(Ti0.7Zr0.3)O3基介电陶瓷的制备方法
CN116813330B (zh) * 2023-07-07 2024-04-19 哈尔滨理工大学 一种基于a位缺陷的低损耗高能量转换效率的钛酸钡基无铅储能陶瓷材料及其制备方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163142B (en) * 1984-07-25 1988-07-13 Sakai Chemical Industry Co A process for producing a composition which includes perovskite compound
US4820668A (en) * 1985-04-17 1989-04-11 Murata Manufacturing Co., Ltd. Process for preparing powdered ceramic raw materials of complex oxide
JP2004296857A (ja) * 2003-03-27 2004-10-21 Tdk Corp 電子部品の特性を予測する方法および製造方法
CN101955356A (zh) * 2010-10-09 2011-01-26 同济大学 介电可调的钛酸锶钡基复合硅酸盐微波介质材料及其制备
CN102173789A (zh) * 2011-02-25 2011-09-07 武汉理工大学 钛酸锶钡基储能介质陶瓷的制备方法
CN102372484A (zh) * 2010-08-04 2012-03-14 株式会社村田制作所 电介质陶瓷和层叠陶瓷电容器
CN106588006A (zh) * 2016-12-15 2017-04-26 中国工程物理研究院材料研究所 一种高介电性能钛酸锶钡、其制备方法及采用其制备的介电陶瓷
CN108117385A (zh) * 2017-12-26 2018-06-05 中国科学院上海硅酸盐研究所 一种大尺寸高耐电强度氧化钛基介质陶瓷材料及其制备方法和应用
CN109231977A (zh) * 2018-11-02 2019-01-18 中国科学院上海硅酸盐研究所 一种高温稳定介质陶瓷材料及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058404A (en) * 1973-12-10 1977-11-15 Tdk Electronics Co., Ltd. Sintered ceramic dielectric body
US4335216A (en) * 1981-05-01 1982-06-15 Tam Ceramics, Inc. Low temperature fired dielectric ceramic composition and method of making same
JP4710574B2 (ja) * 2005-12-02 2011-06-29 Ｔｄｋ株式会社 誘電体磁器組成物および電子部品
JP2008174413A (ja) * 2007-01-17 2008-07-31 Tdk Corp 誘電体磁器組成物および電子部品
WO2009070047A1 (en) * 2007-11-26 2009-06-04 Elizaveta Arkadievna Nenasheva Low dielectric loss ceramic ferroelectric composite material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163142B (en) * 1984-07-25 1988-07-13 Sakai Chemical Industry Co A process for producing a composition which includes perovskite compound
US4820668A (en) * 1985-04-17 1989-04-11 Murata Manufacturing Co., Ltd. Process for preparing powdered ceramic raw materials of complex oxide
JP2004296857A (ja) * 2003-03-27 2004-10-21 Tdk Corp 電子部品の特性を予測する方法および製造方法
CN102372484A (zh) * 2010-08-04 2012-03-14 株式会社村田制作所 电介质陶瓷和层叠陶瓷电容器
CN101955356A (zh) * 2010-10-09 2011-01-26 同济大学 介电可调的钛酸锶钡基复合硅酸盐微波介质材料及其制备
CN102173789A (zh) * 2011-02-25 2011-09-07 武汉理工大学 钛酸锶钡基储能介质陶瓷的制备方法
CN106588006A (zh) * 2016-12-15 2017-04-26 中国工程物理研究院材料研究所 一种高介电性能钛酸锶钡、其制备方法及采用其制备的介电陶瓷
CN108117385A (zh) * 2017-12-26 2018-06-05 中国科学院上海硅酸盐研究所 一种大尺寸高耐电强度氧化钛基介质陶瓷材料及其制备方法和应用
CN109231977A (zh) * 2018-11-02 2019-01-18 中国科学院上海硅酸盐研究所 一种高温稳定介质陶瓷材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王平等: "钛酸锶钡基高压陶瓷电容器材料的研究", 《硅酸盐通报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671681A (zh) * 2022-04-11 2022-06-28 北京科技大学 一种兼具高储能密度，高功率密度和高效率的钛酸钡基弛豫铁电陶瓷材料及其制备方法
CN114671681B (zh) * 2022-04-11 2023-04-11 北京科技大学 一种兼具高储能密度，高功率密度和高效率的钛酸钡基弛豫铁电陶瓷材料及其制备方法

Also Published As

Publication number Publication date
CN111763082B (zh) 2021-08-31
US11292747B2 (en) 2022-04-05
US20200308059A1 (en) 2020-10-01

Similar Documents

Publication Publication Date Title
CN111763082B (zh) 一种钛酸锶钡基介质陶瓷材料及其制备方法和应用
Peddigari et al. Linear and nonlinear dielectric ceramics for high-power energy storage capacitor applications
Wang et al. Dielectric properties of fine‐grained barium titanate based X7R materials
CN109180178B (zh) 一种高储能密度钛酸锶钡基无铅弛豫铁电陶瓷及其制备方法
CN109133915B (zh) 一种高储能钛酸钡基介质材料及其制备方法
CN109354492B (zh) 铋基无铅高储能密度陶瓷材料及其制备方法
CN109336588B (zh) 一种高温稳定高介低损耗高绝缘无铅陶瓷电容器材料及制备
KR101976963B1 (ko) 유전체 조성물, 유전체 소자, 전자 부품 및 적층 전자 부품
CN109970446B (zh) 一种用于中温烧结的锶铋钛基储能介质材料及制备方法
CN1801417A (zh) 细晶贱金属内电极多层陶瓷片式电容器介质材料
CN113582683B (zh) 一种X8R MLCC用BaTiO3基陶瓷材料的制备方法
CN108117385B (zh) 一种大尺寸高耐电强度氧化钛基介质陶瓷材料及其制备方法和应用
CN103408301A (zh) 一种超高压陶瓷电容器介质及其制备方法
CN103351161B (zh) 一种低温烧结高压陶瓷电容器介质
CN106187166B (zh) 一种用于中温烧结具有偏压特性的中高压瓷介电容器材料
CN106187189B (zh) 一种储能微波介质陶瓷材料及其制备方法
JP7196906B2 (ja) 誘電体磁器組成物及びセラミック電子部品
CN114940616A (zh) 一种稀土改性的钛酸锶巨介电陶瓷材料及其制备方法
CN111018516A (zh) 钛酸钡基高储能密度电子陶瓷及其制备方法
Chen et al. Effect of Y2O3 and Dy2O3 on dielectric properties of Ba0. 7 Sr0. 3 TiO3 series capacitor ceramics
CN106673644B (zh) 一种用于中温烧结的钛酸锶基储能介质材料
CN111253151B (zh) 具有高储能密度和高功率密度的铁酸铋钛酸钡基陶瓷及制备方法
CN108585834A (zh) 高介电常数陶瓷粉料及所制得的陶瓷电容器及制造方法
CN109293353B (zh) 一种高储能密度和高储能效率的无铅BiFeO3基铁电陶瓷材料及其制备方法
CN111960817A (zh) 高介低损耗耐高压电容器用陶瓷介质材料及其制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant