CN112390637A - 无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 - Google Patents
无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 Download PDFInfo
- Publication number
- CN112390637A CN112390637A CN202011317534.9A CN202011317534A CN112390637A CN 112390637 A CN112390637 A CN 112390637A CN 202011317534 A CN202011317534 A CN 202011317534A CN 112390637 A CN112390637 A CN 112390637A
- Authority
- CN
- China
- Prior art keywords
- ferrite material
- microwave ferrite
- raw materials
- temperature
- sintering
- 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.)
- Pending
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 79
- 239000000463 material Substances 0.000 title claims abstract description 74
- 229910052727 yttrium Inorganic materials 0.000 title claims abstract description 9
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 238000009472 formulation Methods 0.000 title description 2
- 239000002994 raw material Substances 0.000 claims abstract description 44
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 37
- 238000005469 granulation Methods 0.000 claims description 27
- 230000003179 granulation Effects 0.000 claims description 27
- 238000000498 ball milling Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 20
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 229910052726 zirconium Inorganic materials 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 238000007873 sieving Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052863 mullite Inorganic materials 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 2
- 238000004321 preservation Methods 0.000 description 14
- 239000002223 garnet Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- C04B35/26—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 ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
-
- 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
- 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
- C04B2235/3217—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
- C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
-
- 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
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, 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
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
-
- 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
- C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates 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
- C04B2235/3298—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
- C04B2235/50—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
- C04B2235/5409—Particle size related information expressed by specific surface values
-
- 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
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
-
- 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
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/608—Green bodies or pre-forms with well-defined density
-
- 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
-
- 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
- C04B2235/6562—Heating rate
-
- 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
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)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
本发明提供了一种无钇配方的高介电常数微波铁氧体材料及其制备方法和器件。该微波铁氧体材料的化学式为Bi1.2Ca1.8‑1.2a‑0.5b‑x‑y‑ zVaAlbZrxMgyZnzFe4.95‑a‑b‑x‑y‑zO12,a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1;该制备方法包括按分子式Bi1.2Ca1.8‑1.2a‑0.5b‑x‑y‑ zVaAlbZrxMgyZnzFe4.95‑a‑b‑x‑y‑zO12;按照a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1的化学计量比配备原料,并使用所述原料制作所述微波铁氧体材料。本发明的材料具有低本成本、高介电常数等特性,其介电常数为24~26,4πMs为1400~1650Gs,△H<50Oe,Tc>190℃,能够很好地满足微波铁氧体器件的应用,解决微波器件小型化等难题。
Description
技术领域
本发明涉及微波通信磁性材料领域,具体涉及一种无钇配方的高介电常数微波铁氧体材料及其制备方法和器件。
背景技术
现有微波铁氧体材料的介电常数在12~16之间,在低频环形器设计时,器件尺寸偏大,无法满足小型化、集成化的需求。若提高铁氧体的介电常数到20以上,可以把隔离器环形器的尺寸缩小20%以上,达到小型化、集成化的需求。
当前高介电常数石榴石微波铁氧体材料大部分是含稀土Y2O3,如专利CN111285673A公开了一种石榴石微波铁氧体材料,介电常数为28左右,其分子式为Bi1.25Ca0.25+2xY1.5-2xZr0.25AlxMnyFe4.75-x-y;专利CN 107746269 A中公开了一种含Bi(其中15wt%~20wt%Bi)的石榴石微波铁氧体材料,组分包括Y2O3 22-26份,其4πMs为1800Gs,介电常数为30。但无钇的高介电微波铁氧体材料的研究也有一些,如专利CN107417266A公开了一种无稀土石榴石铁氧体材料,其分子式为Bi3-(2a+b+c+m+n)Ca2a+b+c+m+ nVaZrbSncIndTimGenFe5-a-b-c-d-m-n-δO12,材料对应的介电常数为20以上(不具体),线宽低于87Oe(≤7KA/m),但线宽已经很高,不利于器件应用(插入损耗太高),同时4πMs也不具体。
发明内容
本发明解决的技术问题是提供一种无钇配方的高介电常数微波铁氧体材料,解决如上所述的现有技术中的缺陷。
本发明的技术解决方案是:
一种无钇配方的高介电常数微波铁氧体材料,其中,其组成化学式为
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12,
其中a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1。
一种无钇配方的高介电常数微波铁氧体材料的制备方法,其中,包括按分子式
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12
并且按照a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1的化学计量比配备原料,并使用所述原料制作所述微波铁氧体材料;
包括如下步骤:
1)按分子式
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12,
及a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1的化学计量比配备原料;
然后按照2)球磨混合、3)预烧、4)球磨磨细、5)喷雾造粒、6)压制成型、7)烧结的步骤完成微博铁氧体材料的制作。
如上所述的微波铁氧体材料的制备方法,其中,步骤1)中,所述原料分别为Bi2O3、CaCO3、V2O5、Al2O3、ZrO2、MgO、ZnO、Fe2O3。
如上所述的微波铁氧体材料的制备方法,其中,,按照以下工艺措施的一种或多种进行处理:
步骤2)中,将原料放入球磨机中,按照原料:锆球:纯水=1:3.5:1.5的比例加入对应锆球和纯水,在转速200rpm下均匀混合5h后,出料过筛,得到混合氧化物浆料,再置于150℃烘箱中烘干24h,最后过30目筛网得到混合氧化物粉料;
步骤3)中,将步骤2)得到的混合氧化物粉料装入刚玉莫来石匣钵中,放入箱式炉内进行预烧;
步骤4)中,将步骤3)预烧后的粉料放入球磨机中,按照原料:锆球:纯水=1:4:1.2的比例加入对应锆球和纯水,在转速300rpm下均匀研磨至D50=0.7±0.1μm,得到磨细浆料;
步骤5)中,将步骤4)磨细的浆料和PVA水溶液、分散剂、消泡剂混合搅拌均匀后进行喷雾造粒,所述分散剂为聚丙烯酸铵,所述消泡剂为聚二甲基硅氧烷,经喷雾干燥机进行喷雾造粒,得到喷雾造粒粉,其中喷雾干燥机的进风口温度为250℃~280℃,出风口温度为140℃~170℃;
步骤6)中,将步骤5)得到的喷雾造粒粉放入模具内压制指定形状的生坯,生坯成型密度保持的3.6g/cm3以上;
步骤7)中,将步骤6)压制成型的生坯排置于氧化铝匣钵中放入箱式炉内进行1000℃~1060℃烧结。
如上所述的微波铁氧体材料的制备方法,其中,所述原料均为分析纯。
如上所述的微波铁氧体材料的制备方法,其中,所述MgO、ZnO为纳米级,D50为100nm~200nm。
如上所述的微波铁氧体材料的制备方法,其中,所述MgO、ZnO为近球形形貌,比表面积为60~70m2/g。
如上所述的微波铁氧体材料的制备方法,其中,步骤3)中,所述预烧为分段预烧,具体包括:从室温以1.2℃/min速率升温至400℃,400℃保温2h,然后以1.5℃/min速率升温至最高预烧温度750℃~850℃,在最高预烧温度750℃~850℃下保温6h后随炉冷却。
如上所述的微波铁氧体材料的制备方法,其中,所述烧结为分段烧结,具体包括:从室温以1℃/min速率升温至300℃,然后以0.83℃/min速率升温至450℃,450℃保温2h,以1.2℃/min速率升温至900℃,然后以2℃/min速率升温至最高烧结温度1000℃~1060℃,在最高烧结温度1000℃~1060℃下保温5h后随炉冷却。
一种微波铁氧体器件,其中,具有如权利要求1所述的微波铁氧体材料。
由以上说明得知,本发明确实具有如下的优点:
本发明提供的无钇配方的微波铁氧体材料及其制备方法,采用非稀土元素Bi3+、Ca2+完全替代十二面体中心的Y离子,得到无稀土的石榴石微波铁氧体材料,从而大幅降低石榴石微波铁氧体材料的成本,利于进行批量化生产与推广应用。同时掺杂Zr4+、Mg2+、Zn2+替代部分八面体中心的Fe离子,V5+、Al3+替代部分四面体中心的Fe离子,利用它们的电磁特性和补偿点来获得合适的4πMs、ΔH和Tc。该微波铁氧体材料的配方将Bi含量控制在34wt%~37wt%,实现介电常数稳定在24~26,其中非磁性Bi3+对十二面体位Y3+的取代,有效提高材料的介电常数,但会降低居里温度,而本发明合适的Bi含量可以平衡介电常数(ε越高越好)与居里温度(Tc越高越好),非磁性V5+和Al3+对四面体位(Fe3)的取代,可有效降低4πMs,但会增加线宽,通过球形纳米MgO、ZnO的复合掺杂,可以降低线宽的恶化程度。优选实施例从原料选材、掺杂元素及其含量再到球磨粒度、烧结温度等经过大量的实验而找到了最佳工艺配置组合。本发明的微波铁氧体材料可在1020℃~1060℃下烧结致密,介电常数为24~26,4πMs为1400~1650Gs,△H<50Oe,Tc在190℃以上,能够很好地满足微波铁氧体器件的应用,解决微波器件小型化等难题。
附图说明
图1为本发明实施例1的烧结样品断面的扫描电镜(SEM)照片。
图2为本发明对比例1的烧结样品断面的扫描电镜(SEM)照片。
图3为本发明的微波铁氧体材料的制备方法的制备流程示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解,现对照附图说明本发明的具体实施方式。
为了使本发明实施例所要解决的技术问题、技术方案及有益效果更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
本发明的一种无钇配方的高介电常数微波铁氧体材料,在一种实施例中,其化学式为
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12(a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1)。
本发明提供的一种无钇配方的高介电常数微波铁氧体材料的制备方法,请参照图3所示,包括按分子式
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12(a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1)的化学计量比配备原料,并使用所述原料制作所述微波铁氧体材料。
在优选的实施例中,所述方法包括如下步骤:1)按分子式Bi1.2Ca1.8-1.2a-0.5b-x-y- zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12(a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1)的化学计量比配备原料;2)球磨混合;3)预烧;4)球磨磨细;5)喷雾造粒;6)压制成型;7)烧结。
在一些优选的实施例中,步骤1)中,对应原料分别为Bi2O3、CaCO3、V2O5、Al2O3、ZrO2、MgO、ZnO、Fe2O3。
在一些优选的实施例中,步骤2)中,将原料放入球磨机中,按照原料:锆球:纯水=1:3.5:1.5的比例加入对应锆球和纯水,在转速200rpm下均匀混合5h后,出料过筛,得到混合氧化物浆料,再置于150℃烘箱中烘干24h,最后过30目筛网得到混合氧化物粉料;
在一些优选的实施例中,步骤3)中步骤3)中,将步骤2)得到的混合氧化物粉料装入刚玉莫来石匣钵中,放入箱式炉内进行预烧;
在一些优选的实施例中,步骤4)中,将步骤3)预烧后的粉料放入球磨机中,按照原料:锆球:纯水=1:4:1.2的比例加入对应锆球和纯水,在转速300rpm下均匀研磨至D50=0.7±0.1μm,得到磨细浆料;
在一些优选的实施例中,步骤5)中,将步骤4)磨细的浆料和PVA水溶液、分散剂、消泡剂混合搅拌均匀后进行喷雾造粒,所述分散剂为聚丙烯酸铵,所述消泡剂为聚二甲基硅氧烷,经喷雾干燥机进行喷雾造粒,得到喷雾造粒粉,其中喷雾干燥机的进风口温度为250℃~280℃,出风口温度为140℃~170℃;
在一些优选的实施例中,步骤6)中,将步骤5)得到的喷雾造粒粉放入模具内压制指定形状的生坯,生坯成型密度保持的3.6g/cm3以上;
在一些优选的实施例中,步骤7)中,将步骤6)压制成型的生坯排置于氧化铝匣钵中放入箱式炉内进行1000℃~1060℃烧结。
在一些优选的实施例中,所述原料均为分析纯。
在一些优选的实施例中,所述MgO、ZnO为纳米级,D50为100nm~200nm。
在一些优选的实施例中,所述MgO、ZnO为近球形形貌,比表面积为60~70m2/g。
在一些优选的实施例中,步骤3)中,从室温以1.2℃/min速率升温至400℃,400℃保温2h,然后以1.5℃/min速率升温至最高预烧温度750℃~850℃,在最高预烧温度750℃~850℃下保温6h后随炉冷却。
在一些优选的实施例中,步骤7)中,所述烧结为分段烧结,具体包括:从室温以1℃/min速率升温至300℃,然后以0.83℃/min速率升温至450℃,450℃保温2h,以1.2℃/min速率升温至900℃,然后以2℃/min速率升温至最高烧结温度1000℃~1060℃,在最高烧结温度1000℃~1060℃下保温5h后随炉冷却。
在另一些实施例中,一种微波铁氧体器件,具有所述的微波铁氧体材料。在不同的实施例中,该微波铁氧体器件可以是环形器或隔离器。
一个具体实施例的高介电常数微波铁氧体材料的制备方法,包括如下步骤:
1)按分子式Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12(a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1)。的化学计量比,计算出所需原料的比例,称取原料,对应原料分别为Bi2O3、CaCO3、V2O5、Al2O3、ZrO2、MgO、ZnO、Fe2O3。优选地,所述原料均为分析纯,所述MgO、ZnO为纳米级,D50为100nm~200nm,所述MgO、ZnO为近球形形貌,比表面积为60~70m2/g。
2)球磨混合:将步骤1)称取的原料放入球磨机中,按照原料:锆球:纯水=1:3.5:1.5的比例加入对应锆球和纯水,在转速200rpm下均匀混合5h后,出料过筛,得到混合氧化物浆料,再置于150℃烘箱中烘干24h,最后过30目筛网得到混合氧化物粉料;
3)预烧:将步骤2)得到的混合氧化物粉料装入刚玉莫来石匣钵中,放入箱式炉内进行预烧。优选地,预烧曲线为分段预烧,具体地:从室温以1.2℃/min速率升温至400℃,400℃保温2h,然后以1.5℃/min速率升温至最高预烧温度750℃~850℃,在最高预烧温度750℃~850℃下保温6h后随炉冷却。
4)球磨磨细:将步骤3)预烧后的粉料放入球磨机中,按照原料:锆球:纯水=1:4:1.2的比例加入对应锆球和纯水,在转速300rpm下均匀研磨至D50=0.7±0.1μm,得到磨细浆料;
5)喷雾造粒:将步骤4)磨细的浆料和PVA水溶液、分散剂、消泡剂混合搅拌均匀后进行喷雾造粒,所述分散剂为聚丙烯酸铵,所述消泡剂为聚二甲基硅氧烷,经喷雾干燥机进行喷雾造粒,得到喷雾造粒粉,其中喷雾干燥机的进风口温度为250℃~280℃,出风口温度为140℃~170℃;
6)压制成型:将步骤5)得到的喷雾造粒粉放入模具内压制指定形状的生坯,生坯成型密度保持的3.6g/cm3以上;
7)烧结:将步骤6)压制成型的生坯排置于氧化铝匣钵中放入箱式炉内进行烧结。优选地,烧结曲线为分段烧结,具体地:从室温以1℃/min速率升温至300℃,然后以0.83℃/min速率升温至450℃,450℃保温2h,以1.2℃/min速率升温至900℃,然后以2℃/min速率升温至最高烧结温度1000℃~1060℃,在最高烧结温度1000℃~1060℃下保温5h后随炉冷却。
实施例1
按分子式Bi1.2Ca1.29V0.1Al0.1Zr0.3Mg0.02Zn0.02Fe4.41O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、850℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1060℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=24.3、4πMs=1647Gs、△H=47Oe、Tc=198℃。
实施例2
按分子式Bi1.2Ca0.785V0.2Al0.15Zr0.5Mg0.1Zn0.1Fe3.9O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、750℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1000℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=25.9、4πMs=1419Gs、△H=46Oe、Tc=206℃。
实施例3
按分子式Bi1.2Ca0.96V0.15Al0.2Zr0.4Mg0.08Zn0.08Fe4.04O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、800℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1030℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=25.1、4πMs=1520Gs、△H=45Oe、Tc=212℃。
实施例4
按分子式Bi1.2Ca0.97V0.15Al0.2Zr0.35Mg0.1Zn0.1Fe4.05O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、800℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1030℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=24.9、4πMs=1547Gs、△H=49Oe、Tc=204℃。
对比例1
按分子式Bi1.2Ca1.63V0.1Al0.1Fe4.75O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、800℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1060℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=23.9、4πMs=1650Gs、△H=81Oe、Tc=232℃。
对比例2
按分子式Bi1.2Ca0.635V0.2Al0.15Zr0.6Mg0.2Zn0.05Fe3.75O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、750℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1060℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=25.8、4πMs=1580Gs、△H=57Oe、Tc=210℃。
对比例3
按分子式Bi1.2Ca0.78V0.3Al0.2Zr0.4Mg0.08Zn0.08Fe3.89O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、800℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1030℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=25.8、4πMs=1580Gs、△H=62Oe、Tc=178℃。
对比例4
按分子式Bi1.2Ca0.88V0.3Zr0.4Mg0.08Zn0.08Fe4.09O12的化学计量比,计算出所需原料的比例,称取原料,然后依次经球磨混合、800℃保温6h预烧、球磨磨细、喷雾造粒、压制成型,最终在1030℃烧结、保温5h的得到微波铁氧体材料。经检测,该微波铁氧体材料的特性:ε=25.8、4πMs=1721Gs、△H=52Oe、Tc=198℃。
图1显示实施例1制备得到的微波铁氧体材料结晶致密、晶粒大小均匀,基本没有空隙,因此具备高介电常数,并保持合适的磁学性能。图2显示对比例1制备得到的微波铁氧体材料存在一定孔洞,而且晶粒大小不均,因此线宽较高,高达81Oe,失去应用价值。
本发明实施例的制备方法中,采用非稀土元素Bi3+、Ca2+完全替代十二面体中心的Y离子,得到无稀土的石榴石微波铁氧体材料,从而大幅降低石榴石微波铁氧体材料的成本,利于进行批量化生产与推广应用。同时掺杂Zr4+、Mg2+、Zn2+替代部分八面体中心的Fe离子,V5+、Al3+替代部分四面体中心的Fe离子,利用它们的电磁特性和补偿点来获得合适的4πMs、ΔH和Tc。该微波铁氧体材料的配方将Bi含量控制在34wt%~37wt%,实现介电常数稳定在24~26,其中非磁性Bi3+对十二面体位Y3+的取代,有效提高材料的介电常数,但会降低居里温度,而本发明合适范围的Bi含量可以平衡介电常数(ε越高越好)与居里温度(Tc越高越好),非磁性V5+和Al3+对四面体位(Fe3)的取代,可有效降低4πMs,但会增加线宽,通过球形纳米MgO和ZnO的复合掺杂,可以降低线宽的恶化程度。通过本发明实施例的制备方法所得微波铁氧体材料可在1020℃~1080℃下烧结致密,介电常数为24~26,4πMs为1400~1650Gs,△H<50Oe,Tc在190℃以上,能够很好地满足微波铁氧体器件的应用,解决微波器件小型化等难题。
以上所述仅为本发明示意性的具体实施方式,并非用以限定本发明的范围。任何本领域的技术人员,在不脱离本发明的构思和原则的前提下所作出的等同变化与修改,均应属于本发明保护的范围。
Claims (10)
1.一种无钇配方的高介电常数微波铁氧体材料,其特征在于,其组成化学式为
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12,
其中a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1。
2.一种无钇配方的高介电常数微波铁氧体材料的制备方法,其特征在于,包括按分子式
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12
并且按照a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1的化学计量比配备原料,并使用所述原料制作所述微波铁氧体材料;
包括如下步骤:
1)按分子式
Bi1.2Ca1.8-1.2a-0.5b-x-y-zVaAlbZrxMgyZnzFe4.95-a-b-x-y-zO12,
及a=0.1~0.2,b=0.1~0.2,x=0.3~0.5,y=0.02~0.1,z=0.02~0.1的化学计量比配备原料;
然后按照2)球磨混合、3)预烧、4)球磨磨细、5)喷雾造粒、6)压制成型、7)烧结的步骤完成微博铁氧体材料的制作。
3.如权利要求2所述的微波铁氧体材料的制备方法,其特征在于,步骤1)中,所述原料分别为Bi2O3、CaCO3、V2O5、Al2O3、ZrO2、MgO、ZnO、Fe2O3。
4.如权利要求2或3任一项所述的微波铁氧体材料的制备方法,其特征在于,按照以下工艺措施的一种或多种进行处理:
步骤2)中,将原料放入球磨机中,按照原料:锆球:纯水=1:3.5:1.5的比例加入对应锆球和纯水,在转速200rpm下均匀混合5h后,出料过筛,得到混合氧化物浆料,再置于150℃烘箱中烘干24h,最后过30目筛网得到混合氧化物粉料;
步骤3)中,将步骤2)得到的混合氧化物粉料装入刚玉莫来石匣钵中,放入箱式炉内进行预烧;
步骤4)中,将步骤3)预烧后的粉料放入球磨机中,按照原料:锆球:纯水=1:4:1.2的比例加入对应锆球和纯水,在转速300rpm下均匀研磨至D50=0.7±0.1μm,得到磨细浆料;
步骤5)中,将步骤4)磨细的浆料和PVA水溶液、分散剂、消泡剂混合搅拌均匀后进行喷雾造粒,所述分散剂为聚丙烯酸铵,所述消泡剂为聚二甲基硅氧烷,经喷雾干燥机进行喷雾造粒,得到喷雾造粒粉,其中喷雾干燥机的进风口温度为250℃~280℃,出风口温度为140℃~170℃;
步骤6)中,将步骤5)得到的喷雾造粒粉放入模具内压制指定形状的生坯,生坯成型密度保持的3.6g/cm3以上;
步骤7)中,将步骤6)压制成型的生坯排置于氧化铝匣钵中放入箱式炉内进行1000℃~1060℃烧结。
5.如权利要求4所述的微波铁氧体材料的制备方法,其特征在于,所述原料均为分析纯。
6.如权利要求5任一项所述的微波铁氧体材料的制备方法,其特征在于,所述MgO、ZnO为纳米级,D50为100nm~200nm。
7.如权利要求5任一项所述的微波铁氧体材料的制备方法,其特征在于,所述MgO、ZnO为近球形形貌,比表面积为60~70m2/g。
8.如权利要求6或7任一项所述的微波铁氧体材料的制备方法,其特征在于,步骤3)中,所述预烧为分段预烧,具体包括:从室温以1.2℃/min速率升温至400℃,400℃保温2h,然后以1.5℃/min速率升温至最高预烧温度750℃~850℃,在最高预烧温度750℃~850℃下保温6h后随炉冷却。
9.如权利要求8所述的微波铁氧体材料的制备方法,其特征在于,步骤7)中,所述烧结为分段烧结,具体包括:从室温以1℃/min速率升温至300℃,然后以0.83℃/min速率升温至450℃,450℃保温2h,以1.2℃/min速率升温至900℃,然后以2℃/min速率升温至最高烧结温度1000℃~1060℃,在最高烧结温度1000℃~1060℃下保温5h后随炉冷却。
10.一种微波铁氧体器件,其特征在于,具有如权利要求1所述的微波铁氧体材料。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011317534.9A CN112390637A (zh) | 2020-11-23 | 2020-11-23 | 无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011317534.9A CN112390637A (zh) | 2020-11-23 | 2020-11-23 | 无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112390637A true CN112390637A (zh) | 2021-02-23 |
Family
ID=74607094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011317534.9A Pending CN112390637A (zh) | 2020-11-23 | 2020-11-23 | 无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112390637A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113233885A (zh) * | 2021-03-26 | 2021-08-10 | 电子科技大学 | 一种低温烧结yig旋磁铁氧体材料及其制备方法 |
CN115340371A (zh) * | 2022-07-26 | 2022-11-15 | 深圳顺络电子股份有限公司 | 一种铁氧体材料、制备方法及微波通信器件 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549993A (zh) * | 2009-04-30 | 2009-10-07 | 深圳市华扬通信技术有限公司 | 一种应用于c波段移相器的锂铁氧体材料及其制备方法 |
CN103649384A (zh) * | 2011-06-06 | 2014-03-19 | 天工方案公司 | 稀土减少的石榴石系统和相关的微波应用 |
US20150171501A1 (en) * | 2013-12-18 | 2015-06-18 | Skyworks Solutions, Inc. | Tunable resonators using high dielectric constant ferrite rods |
CN107417266A (zh) * | 2017-08-07 | 2017-12-01 | 西南应用磁学研究所 | 一种无稀土石榴石铁氧体材料及其制备方法 |
CN111116192A (zh) * | 2019-12-25 | 2020-05-08 | 深圳顺络电子股份有限公司 | 一种微波铁氧体材料、制备方法及微波通信器件 |
CN111116193A (zh) * | 2019-12-25 | 2020-05-08 | 深圳顺络电子股份有限公司 | 一种微波铁氧体材料及其制备方法和器件 |
CN111285673A (zh) * | 2020-02-13 | 2020-06-16 | 深圳顺络电子股份有限公司 | 一种高介电常数微波铁氧体材料、制备方法及微波通信器件 |
CN111848149A (zh) * | 2020-07-09 | 2020-10-30 | 深圳顺络电子股份有限公司 | 一种高介电常数微波铁氧体材料、制备方法和器件 |
-
2020
- 2020-11-23 CN CN202011317534.9A patent/CN112390637A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549993A (zh) * | 2009-04-30 | 2009-10-07 | 深圳市华扬通信技术有限公司 | 一种应用于c波段移相器的锂铁氧体材料及其制备方法 |
CN103649384A (zh) * | 2011-06-06 | 2014-03-19 | 天工方案公司 | 稀土减少的石榴石系统和相关的微波应用 |
US20150171501A1 (en) * | 2013-12-18 | 2015-06-18 | Skyworks Solutions, Inc. | Tunable resonators using high dielectric constant ferrite rods |
CN107417266A (zh) * | 2017-08-07 | 2017-12-01 | 西南应用磁学研究所 | 一种无稀土石榴石铁氧体材料及其制备方法 |
CN111116192A (zh) * | 2019-12-25 | 2020-05-08 | 深圳顺络电子股份有限公司 | 一种微波铁氧体材料、制备方法及微波通信器件 |
CN111116193A (zh) * | 2019-12-25 | 2020-05-08 | 深圳顺络电子股份有限公司 | 一种微波铁氧体材料及其制备方法和器件 |
CN111285673A (zh) * | 2020-02-13 | 2020-06-16 | 深圳顺络电子股份有限公司 | 一种高介电常数微波铁氧体材料、制备方法及微波通信器件 |
CN111848149A (zh) * | 2020-07-09 | 2020-10-30 | 深圳顺络电子股份有限公司 | 一种高介电常数微波铁氧体材料、制备方法和器件 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113233885A (zh) * | 2021-03-26 | 2021-08-10 | 电子科技大学 | 一种低温烧结yig旋磁铁氧体材料及其制备方法 |
CN115340371A (zh) * | 2022-07-26 | 2022-11-15 | 深圳顺络电子股份有限公司 | 一种铁氧体材料、制备方法及微波通信器件 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111848149B (zh) | 一种高介电常数微波铁氧体材料、制备方法和器件 | |
KR101904269B1 (ko) | 전자 애플리케이션을 위한 조성 및 물질에서 희토류 금속에 대한 효과적인 치환 | |
CN111285673A (zh) | 一种高介电常数微波铁氧体材料、制备方法及微波通信器件 | |
CN111116192B (zh) | 一种微波铁氧体材料、制备方法及微波通信器件 | |
CN104230323A (zh) | M型钙镧钴永磁铁氧体及其制备方法 | |
JP2021011421A (ja) | 低損失ガーネットフェライト材料の調製方法 | |
CN104230325A (zh) | 制备永磁铁氧体预烧料的方法及永磁铁氧体的制备方法 | |
CN112390637A (zh) | 无钇配方的高介电常数微波铁氧体材料及其制备方法和器件 | |
CN103030388A (zh) | 一种高性能永磁铁氧体材料及制造方法 | |
CN110323025A (zh) | 铁氧体烧结磁铁 | |
CN104230326A (zh) | M型钙永磁铁氧体的制备方法 | |
CN108863336B (zh) | 一种镍系微波铁氧体基片材料及其制备方法 | |
CN112358290B (zh) | 一种铁氧体材料及其制备方法和用途 | |
CN111925201B (zh) | Sc掺杂六角晶系Zn2W铁氧体材料及制备方法 | |
CN112851344A (zh) | 一种中介电常数微波介质陶瓷及其制备方法 | |
CN111116193B (zh) | 一种微波铁氧体材料及其制备方法和器件 | |
CN104230322A (zh) | M型钙永磁铁氧体及其制备方法 | |
CN104230321A (zh) | M型钙永磁铁氧体及其制备方法 | |
CN105693235B (zh) | 高介微波介质陶瓷材料及其制备方法 | |
CN112194482B (zh) | 一种超低损耗的宽温功率MnZn铁氧体、制备方法及其5G通讯领域应用 | |
CN112562950B (zh) | 铁氧体烧结磁体 | |
CN115340371B (zh) | 一种铁氧体材料、制备方法及微波通信器件 | |
CN111747745A (zh) | 一种5g滤波器用介质粉体及其制备方法 | |
CN114956800B (zh) | 一种高性能微波多晶铁氧体材料 | |
JP7367581B2 (ja) | フェライト焼結磁石 |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210223 |
|
RJ01 | Rejection of invention patent application after publication |