CN111377727A - 一种含钛六铝酸钙材料及其制备方法 - Google Patents
一种含钛六铝酸钙材料及其制备方法 Download PDFInfo
- Publication number
- CN111377727A CN111377727A CN202010175493.8A CN202010175493A CN111377727A CN 111377727 A CN111377727 A CN 111377727A CN 202010175493 A CN202010175493 A CN 202010175493A CN 111377727 A CN111377727 A CN 111377727A
- Authority
- CN
- China
- Prior art keywords
- titanium
- micro powder
- calcium
- calcium hexaluminate
- containing calcium
- 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
Links
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
- C04B35/44—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 aluminates
-
- 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
- C04B35/6261—Milling
-
- 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
- C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
-
- 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
- C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
-
- 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
- C04B2235/50—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
- C04B2235/60—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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/606—Drying
-
- 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
- C04B2235/6567—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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
-
- 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
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Catalysts (AREA)
Abstract
本发明涉及一种含钛六铝酸钙材料及其制备方法。其技术方案是:以60~80wt%的氧化铝微粉、5~20wt%的含钙微粉、10~20wt%的氧化钛微粉和1~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料。然后将所述混合料在100~200MPa条件下机压成型,得到生坯;再将所述生坯在110~200℃条件下干燥12~36小时,在1500~1800℃条件下保温1~8小时,即得含钛六铝酸钙材料。所述氧化铝微粉的粒径D50为1~8μm;所述含钙微粉粒径D50为1~10μm;所述氧化钛微粉的粒径D50为1~10μm;所述氧化亚锰微粉的粒径D50为1~8μm。本发明成本低和工艺简单,所制制品具有化学稳定性好、抗热震性能好和抗钛铝合金熔体能力强的特点。
Description
技术领域
本发明属于耐火原料技术领域。具体涉及一种含钛六铝酸钙材料及其制备方法。
背景技术
钛铝合金密度低、比强度高、比刚度高、耐热性好、抗高温蠕变性能优异和抗氧化能力良好,是超高音速飞行器和下一代先进航空发动机的首选材料。钛铝合金熔体高温下化学活性高,在熔炼过程中,易与耐火材料坩埚发生反应而污染合金熔体,因此,开发性能优异的钛铝合金熔炼用耐火材料是制备高质量钛铝合金的关键前提。
CaO-Al2O3-TiO2系材料中兼具TiO2和Al2O3组分,在与钛铝合金熔体接触时,可以同时抑制合金熔体中Ti组分和Al组分的侵蚀,因此,是钛铝合金熔炼用耐火材料潜在的重要材料。含钛六铝酸钙(Ca((Al0.84Ti0.16)2)6O19)是CaO-Al2O3-TiO2系材料中唯一可以在1600℃以上温度稳定存在的物相,因此,合成高纯、单相含钛六铝酸钙材料是CaO-Al2O3-TiO2系材料研究领域重要的课题。
目前国内外针对CaO-Al2O3-TiO2系材料制备开展了一定的研究。范春红等以含铝废渣、氧化钙、氧化铝、氧化锆为主要原料,采用固相合成法制备了CaO-Al2O3-TiO2材料(范春红等.ZrO2对钙钛矿/六铝酸钙复相材料组成结构的影响[J],硅酸盐通报,2013,32(8):1534-1539)。然而,材料的高温化学稳定性不佳,降温过程中TiO2组分易发生脱溶,冷却后材料为钙钛矿/六铝酸钙复相材料,并非以含钛六铝酸钙的物相形式存在。采用的干磨加湿磨制备工艺,工艺复杂,能耗高,成本高。在与钛铝合金熔体接触时,由于材料组分不均,钙钛矿物相易受到Al组分侵蚀,而六铝酸钙物相则易受到Ti组分侵蚀。
Chen等以钛铁合金冶炼废渣为原料(Chen,et al.Microstructure andproperties of high alumina castables containing calcium alumino-titanate[J].International Journal of Applied Ceramic Technology,2018,15(6):1478-1483.),通过电熔重熔、均化、还原等技术手段,制备了CaO-Al2O3-TiO2材料。然而,采用的电熔法制备工艺能耗高于烧结法,成本较高,且制备工艺复杂;其次,材料中含钛六铝酸钙物相含量较低,存在大量的六铝酸钙、二铝酸钙及钛酸钙物相,物相组成过于复杂,导致化学稳定性及抗热震性能不佳;最后,在与钛铝合金熔体接触时,由于材料组分不均,易受到合金熔体的侵蚀。
发明内容
本发明旨在克服现有技术缺陷,目的是提供一种成本低和工艺简单的含钛六铝酸钙材料的制备方法;用该方法制备的含钛六铝酸钙材料化学稳定性好、抗热震性能好和抗钛铝合金熔体能力强。
为实现上述任务,本发明所采用的技术方案是:以60~80wt%的氧化铝微粉、5~20wt%的含钙微粉、10~20wt%的氧化钛微粉和1~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~200MPa条件下机压成型,得到生坯;再将所述生坯在110~200℃条件下干燥12~36小时,在1500~1800℃条件下保温1~8小时,即得含钛六铝酸钙材料。
所述氧化铝微粉的Al2O3含量≥98wt%;氧化铝微粉的粒径D50为1~8μm。
所述含钙微粉为氢氧化钙和碳酸钙中的一种以上;含钙微粉粒径D50为1~10μm。
所述氧化钛微粉的TiO2含量≥90wt%;氧化钛微粉的粒径D50为1~10μm。
所述氧化亚锰微粉的MnO含量≥90wt%;氧化亚锰微粉的粒径D50为1~8μm。
由于采用上述技术方案,本发明与现有技术相比具有如下积极效果:
(1)本发明以氧化铝微粉、含钙微粉、氧化钛微粉和氧化亚锰微粉为原料,混合均匀后机压成型,经干燥及高温热处理,制备得到含钛六铝酸钙材料,工艺简单。本发明采用的原料来源广泛;此外,采用烧结法制备含钛六铝酸钙材料,相比于电熔法,能耗较低;因此,生产成本低。
(2)本发明采用的含钙微粉在热处理过程中发生分解反应,形成高活性CaO粉体,能与其他微粉原料迅速反应;此外,引入的氧化亚锰微粉可以固溶进入取代铝离子及钛离子,一方面,促进原料反应形成Ca((Al0.84Ti0.16)2)6O19含钛六铝酸钙相,另一方面,可以稳定含钛六铝酸钙相的晶格,防止在降温过程中发生脱溶现象。因此,含钛六铝酸钙材料中的TiO2组分在冷却过程中能够稳定存在于含钛六铝酸钙相中,不易发生脱溶,化学稳定性好。
(3)本发明中的TiO2组分在升温-降温过程中都能够稳定存在于含钛六铝酸钙相中,避免了升温-降温过程中固溶-脱溶现象的发生,在发生温度变化时材料内部组分及结构变化不大,能有效减少热应力的产生概率,因此,含钛六铝酸钙材料抗热震性能好。
(4)本发明的制品中杂质相含量较低,主要物相组成是Ca((Al0.84Ti0.16)2)6O19相,材料组分均匀,物相中兼具TiO2和Al2O3组分,在与钛铝合金熔体接触时,可以同时抑制合金熔体中Ti组分和Al组分与耐火材料的相互作用,因此,能够较好地抵御钛铝合金熔体的侵蚀,是制备钛铝合金熔炼用耐火材料的理想原料。
本发明所制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于90wt%。
因此,本发明成本低和工艺简单,所制备的含钛六铝酸钙材料具有化学稳定性好、抗热震性能好和抗钛铝合金熔体能力强的特点,是制备钛铝合金熔炼用耐火材料的理想原料。
具体实施方式
下面结合具体实施方式对本发明作进一步的描述,并非对其保护范围的限制。
为避免重复,先将本具体实施方式所涉及的原料统一描述如下,实施例中不再赘述:
所述氧化铝微粉的Al2O3含量≥98wt%;氧化铝微粉的粒径D50为1~8μm。
所述含钙微粉粒径D50为1~10μm。
所述氧化钛微粉的TiO2含量≥90wt%;氧化钛微粉的粒径D50为1~10μm。
所述氧化亚锰微粉的MnO含量≥90wt%;氧化亚锰微粉的粒径D50为1~8μm。
实施例1
一种含钛六铝酸钙材料及其制备方法。以60~65wt%的氧化铝微粉、15~20wt%的含钙微粉、15~20wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于92wt%。
实施例2
一种含钛六铝酸钙材料及其制备方法。以60~65wt%的氧化铝微粉、15~20wt%的含钙微粉、15~20wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为碳酸钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于92wt%。
实施例3
一种含钛六铝酸钙材料及其制备方法。以60~65wt%的氧化铝微粉、15~20wt%的含钙微粉、15~20wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于90wt%。
实施例4
一种含钛六铝酸钙材料及其制备方法。以60~65wt%的氧化铝微粉、15~20wt%的含钙微粉、15~20wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于90wt%。
实施例5
一种含钛六铝酸钙材料及其制备方法。以65~70wt%的氧化铝微粉、12~17wt%的含钙微粉、13~18wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为碳酸钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于93wt%。
实施例6
一种含钛六铝酸钙材料及其制备方法。以65~70wt%的氧化铝微粉、12~17wt%的含钙微粉、13~18wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于93wt%。
实施例7
一种含钛六铝酸钙材料及其制备方法。以65~70wt%的氧化铝微粉、12~17wt%的含钙微粉、13~18wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于91wt%。
实施例8
一种含钛六铝酸钙材料及其制备方法。以65~70wt%的氧化铝微粉、12~17wt%的含钙微粉、13~18wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为碳酸钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于90wt%。
实施例9
一种含钛六铝酸钙材料及其制备方法。以70~75wt%的氧化铝微粉、8~13wt%的含钙微粉、12~16wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于94wt%。
实施例10
一种含钛六铝酸钙材料及其制备方法。以70~75wt%的氧化铝微粉、8~13wt%的含钙微粉、12~16wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于94wt%。
实施例11
一种含钛六铝酸钙材料及其制备方法。以70~75wt%的氧化铝微粉、8~13wt%的含钙微粉、12~16wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为碳酸钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于91wt%。
实施例12
一种含钛六铝酸钙材料及其制备方法。以70~75wt%的氧化铝微粉、8~13wt%的含钙微粉、12~16wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于92wt%。
实施例13
一种含钛六铝酸钙材料及其制备方法。以75~80wt%的氧化铝微粉、5~10wt%的含钙微粉、10~14wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于95wt%。
实施例14
一种含钛六铝酸钙材料及其制备方法。以75~80wt%的氧化铝微粉、5~10wt%的含钙微粉、10~14wt%的氧化钛微粉和1~6wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为碳酸钙。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于95wt%。
实施例15
一种含钛六铝酸钙材料及其制备方法。以75~80wt%的氧化铝微粉、5~10wt%的含钙微粉、10~14wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~150MPa条件下机压成型,得到生坯;再将所述生坯在150~200℃条件下干燥12~24小时,在1500~1650℃条件下保温4~8小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于92wt%。
实施例16
一种含钛六铝酸钙材料及其制备方法。以75~80wt%的氧化铝微粉、5~10wt%的含钙微粉、10~14wt%的氧化钛微粉和4~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在150~200MPa条件下机压成型,得到生坯;再将所述生坯在110~160℃条件下干燥24~36小时,在1650~1800℃条件下保温1~5小时,即得含钛六铝酸钙材料。
所述含钙微粉为氢氧化钙和碳酸钙的混合物。
本实施例制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于91wt%。
本具体实施方式与现有技术相比具有如下积极效果:
(1)本具体实施方式以氧化铝微粉、含钙微粉、氧化钛微粉和氧化亚锰微粉为原料,混合均匀后机压成型,经干燥及高温热处理,制备得到含钛六铝酸钙材料,工艺简单。本具体实施方式采用的原料来源广泛;此外,采用烧结法制备含钛六铝酸钙材料,相比于电熔法,能耗较低;因此,生产成本低。
(2)本具体实施方式采用的含钙微粉在热处理过程中发生分解反应,形成高活性CaO粉体,能与其他微粉原料迅速反应;此外,引入的氧化亚锰微粉可以固溶进入取代铝离子及钛离子,一方面,促进原料反应形成Ca((Al0.84Ti0.16)2)6O19含钛六铝酸钙相,另一方面,可以稳定含钛六铝酸钙相的晶格,防止在降温过程中发生脱溶现象。因此,含钛六铝酸钙材料中的TiO2组分在冷却过程中能够稳定存在于含钛六铝酸钙相中,不易发生脱溶,化学稳定性好。
(3)本具体实施方式中的TiO2组分在升温-降温过程中都能够稳定存在于含钛六铝酸钙相中,避免了升温-降温过程中固溶-脱溶现象的发生,在发生温度变化时材料内部组分及结构变化不大,能有效减少热应力的产生概率,因此,含钛六铝酸钙材料抗热震性能好。
(4)本具体实施方式的制品中杂质相含量较低,主要物相组成是Ca((Al0.84Ti0.16)2)6O19相,材料组分均匀,物相中兼具TiO2和Al2O3组分,在与钛铝合金熔体接触时,可以同时抑制合金熔体中Ti组分和Al组分与耐火材料的相互作用,因此,能够较好地抵御钛铝合金熔体的侵蚀,是制备钛铝合金熔炼用耐火材料的理想原料。
本具体实施方式所制备的含钛六铝酸钙材料经检测:Ca((Al0.84Ti0.16)2)6O19相含量大于90wt%。
因此,本具体实施方式成本低和工艺简单,所制备的含钛六铝酸钙材料具有化学稳定性好、抗热震性能好和抗钛铝合金熔体能力强的特点,是制备钛铝合金熔炼用耐火材料的理想原料。
Claims (6)
1.一种含钛六铝酸钙材料的制备方法,其特征在于以60~80wt%的氧化铝微粉、5~20wt%的含钙微粉、10~20wt%的氧化钛微粉和1~10wt%的氧化亚锰微粉为原料,将所述原料在行星球磨机中混合均匀,得到混合料;然后将所述混合料在100~200MPa条件下机压成型,得到生坯;再将所述生坯在110~200℃条件下干燥12~36小时,在1500~1800℃条件下保温1~8小时,即得含钛六铝酸钙材料。
2.根据权利要求1所述的含钛六铝酸钙材料的制备方法,其特征在于所述氧化铝微粉的Al2O3含量≥98wt%;氧化铝微粉的粒径D50为1~8μm。
3.根据权利要求1所述的含钛六铝酸钙材料的制备方法,其特征在于所述含钙微粉为氢氧化钙和碳酸钙中的一种以上;含钙微粉粒径D50为1~10μm。
4.根据权利要求1所述的含钛六铝酸钙材料的制备方法,其特征在于所述氧化钛微粉的TiO2含量≥90wt%;氧化钛微粉的粒径D50为1~10μm。
5.根据权利要求1所述的含钛六铝酸钙材料的制备方法,其特征在于所述氧化亚锰微粉的MnO含量≥90wt%;氧化亚锰微粉的粒径D50为1~8μm。
6.一种含钛六铝酸钙材料,其特征在于所述含钛六铝酸钙材料是根据权利要求1~5项中任一项所述的含钛六铝酸钙材料的制备方法所制备的含钛六铝酸钙材料。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010175493.8A CN111377727B (zh) | 2020-03-13 | 2020-03-13 | 一种含钛六铝酸钙材料及其制备方法 |
PCT/CN2020/123111 WO2021179618A1 (zh) | 2020-03-13 | 2020-10-23 | 一种含钛六铝酸钙材料及其制备方法 |
US17/195,581 US11680020B2 (en) | 2020-03-13 | 2021-03-08 | Titanium-containing calcium hexaaluminate material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010175493.8A CN111377727B (zh) | 2020-03-13 | 2020-03-13 | 一种含钛六铝酸钙材料及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111377727A true CN111377727A (zh) | 2020-07-07 |
CN111377727B CN111377727B (zh) | 2022-05-27 |
Family
ID=71219832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010175493.8A Active CN111377727B (zh) | 2020-03-13 | 2020-03-13 | 一种含钛六铝酸钙材料及其制备方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11680020B2 (zh) |
CN (1) | CN111377727B (zh) |
WO (1) | WO2021179618A1 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112707725A (zh) * | 2020-01-13 | 2021-04-27 | 辽宁科技学院 | 一种一步法制备致密六铝酸钙耐火熟料的工艺方法 |
CN112794710A (zh) * | 2021-01-12 | 2021-05-14 | 北京科技大学 | 一种Zr4+离子掺杂的CA6基耐火材料及其制备方法 |
CN113292321A (zh) * | 2021-06-23 | 2021-08-24 | 郑州振东科技有限公司 | 一种钢包低碳工作衬砖 |
WO2021179618A1 (zh) * | 2020-03-13 | 2021-09-16 | 武汉科技大学 | 一种含钛六铝酸钙材料及其制备方法 |
CN116947462A (zh) * | 2023-07-18 | 2023-10-27 | 武汉科技大学 | 一种重质高纯六铝酸钙耐火原料及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106747414A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种微孔钛铝酸钙原料及其制备方法 |
CN106747512A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种钛铝酸钙粉体及其制备方法 |
CN106747513A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种超细钛铝酸钙粉体及其制备方法 |
CN106747527A (zh) * | 2017-03-01 | 2017-05-31 | 武汉科技大学 | 一种钛铝酸钙隔热耐火材料及其制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3312558A (en) * | 1966-05-17 | 1967-04-04 | Jr Eldon D Miller | Calcium hexaluminate articles |
US4960737A (en) * | 1988-09-06 | 1990-10-02 | Corning Incorporated | Calcium dialuminate/hexaluminate ceramic structures |
EP1178023A1 (en) * | 2000-08-04 | 2002-02-06 | Alcoa Chemie GmbH | High density refractory material containing calcium hexaluminate |
JP4209381B2 (ja) * | 2004-11-29 | 2009-01-14 | 電気化学工業株式会社 | セメント組成物 |
WO2012043904A1 (ko) * | 2010-09-29 | 2012-04-05 | 한국전력공사 | 유동층 촉진수성가스전환반응 공정용 하이브리드 입자 및 그 제조 방법 |
CN105585314B (zh) * | 2015-12-22 | 2018-07-06 | 辽宁科技学院 | 一种致密六铝酸钙耐火熟料及其制备方法 |
CN105906355B (zh) * | 2016-04-22 | 2019-01-22 | 辽宁科技学院 | 一种致密二铝酸钙耐火熟料及其制备方法 |
CN106083077B (zh) * | 2016-06-12 | 2019-04-30 | 辽宁科技学院 | 一种致密ca2-ca6复相轻质耐火熟料及其制备方法 |
CN110171980A (zh) * | 2019-04-10 | 2019-08-27 | 辽宁科技学院 | 一种致密六铝酸钙耐火熟料的制备方法 |
CN110358326B (zh) * | 2019-06-28 | 2021-05-11 | 内蒙古科技大学 | 一种六铝酸钙蓝色陶瓷颜料的制备方法 |
CN110483084A (zh) * | 2019-09-16 | 2019-11-22 | 江苏瑞复达新材料有限公司 | 一种六铝酸钙原位复合高温陶瓷材料及其制备方法 |
CN111377727B (zh) * | 2020-03-13 | 2022-05-27 | 宜兴摩根热陶瓷有限公司 | 一种含钛六铝酸钙材料及其制备方法 |
-
2020
- 2020-03-13 CN CN202010175493.8A patent/CN111377727B/zh active Active
- 2020-10-23 WO PCT/CN2020/123111 patent/WO2021179618A1/zh active Application Filing
-
2021
- 2021-03-08 US US17/195,581 patent/US11680020B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106747414A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种微孔钛铝酸钙原料及其制备方法 |
CN106747512A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种钛铝酸钙粉体及其制备方法 |
CN106747513A (zh) * | 2016-12-15 | 2017-05-31 | 武汉科技大学 | 一种超细钛铝酸钙粉体及其制备方法 |
CN106747527A (zh) * | 2017-03-01 | 2017-05-31 | 武汉科技大学 | 一种钛铝酸钙隔热耐火材料及其制备方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112707725A (zh) * | 2020-01-13 | 2021-04-27 | 辽宁科技学院 | 一种一步法制备致密六铝酸钙耐火熟料的工艺方法 |
WO2021179618A1 (zh) * | 2020-03-13 | 2021-09-16 | 武汉科技大学 | 一种含钛六铝酸钙材料及其制备方法 |
CN112794710A (zh) * | 2021-01-12 | 2021-05-14 | 北京科技大学 | 一种Zr4+离子掺杂的CA6基耐火材料及其制备方法 |
CN113292321A (zh) * | 2021-06-23 | 2021-08-24 | 郑州振东科技有限公司 | 一种钢包低碳工作衬砖 |
CN116947462A (zh) * | 2023-07-18 | 2023-10-27 | 武汉科技大学 | 一种重质高纯六铝酸钙耐火原料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2021179618A1 (zh) | 2021-09-16 |
US11680020B2 (en) | 2023-06-20 |
CN111377727B (zh) | 2022-05-27 |
US20210284579A1 (en) | 2021-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111377727B (zh) | 一种含钛六铝酸钙材料及其制备方法 | |
CN111362708B (zh) | 一种钛铝合金熔炼用耐火材料及其制备方法 | |
CN102914165B (zh) | 一种用于锂电池正极材料焙烧的高安定长寿命匣钵及制造方法 | |
WO2022062293A1 (zh) | 一种高性能节能型镁基原料及其制备方法 | |
WO2022237717A1 (zh) | 一种高纯度致密六铝酸钙系耐火材料及其制备方法 | |
CN103172367A (zh) | 一种微波介质陶瓷材料的制备方法 | |
CN106007742A (zh) | 一种红土镍矿回转窑用钛铝酸钙砖及其制备方法 | |
CN112266240A (zh) | 一种低温固相反应合成富铝尖晶石的方法 | |
CN101913648A (zh) | 一种采用天然氧化锆微波烧结制备部分稳定氧化锆的方法 | |
US11643364B2 (en) | Magnesium-based raw material with low thermal conductivity and low thermal expansion and preparation method thereof | |
CN111377728B (zh) | 一种高纯含钛六铝酸钙材料及其制备方法 | |
CN105272315B (zh) | 一种多孔锆铝酸钙及其制备方法 | |
CN116655360A (zh) | 一种rh精炼炉用复合耐火材料及其制备方法 | |
CN111393175B (zh) | 一种钛铝合金熔炼用耐火浇注料及其制备方法 | |
CN111747733B (zh) | 一种炼钢炉顶底复吹工艺用Al-MgO-ZrO2-C供气元件及其制备方法 | |
CN114685171A (zh) | 一种富铝尖晶石及其制备方法 | |
CN106348773A (zh) | 一种添加SiAlON‑AlN‑TiN的抗锂电材料侵蚀耐火坩埚 | |
CN113511907B (zh) | 一种钛铝合金熔炼用熵稳定耐火材料及其制备方法 | |
CN113620720B (zh) | 一种六铝酸钙-钛酸钙复相耐火原料及其制备方法 | |
CN114057504B (zh) | 一种低导热锆酸钙材料及其制备方法 | |
Yan | Influence of TiO2 on Chemical Stability, High Temperature and Electrochemical Properties of Alumina Ceramics based on η-Al2O3 | |
CN113087517B (zh) | 以钛铁渣为主料的六铝酸钙-尖晶石多孔陶瓷及其制备方法 | |
CN107935611A (zh) | 一种钙锆碳耐火材料及其制备方法 | |
CN116375478B (zh) | 一种耐高温中熵陶瓷材料的制备方法 | |
CN118026706A (zh) | Cr2AlC/Mg(Al,Cr)2O4直接结合氧化铬的耐火材料及其制备方法 |
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 | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220428 Address after: 214222 No. 2, Beidan Road, Yixing Ceramic Industrial Park, Wuxi, Jiangsu Applicant after: YIXING MORGAN THERMAL CERAMICS CO.,LTD. Address before: 430081 No. 947 Heping Avenue, Qingshan District, Hubei, Wuhan Applicant before: WUHAN University OF SCIENCE AND TECHNOLOGY |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant |