CN110451981A - 一种SiC材料及其制造方法 - Google Patents
一种SiC材料及其制造方法 Download PDFInfo
- Publication number
- CN110451981A CN110451981A CN201910425033.3A CN201910425033A CN110451981A CN 110451981 A CN110451981 A CN 110451981A CN 201910425033 A CN201910425033 A CN 201910425033A CN 110451981 A CN110451981 A CN 110451981A
- Authority
- CN
- China
- Prior art keywords
- powder
- mullite sagger
- discarded
- partial size
- temperature
- 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.)
- Withdrawn
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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- 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
- C04B2235/3217—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
- C04B2235/34—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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- 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
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
-
- 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
- C04B2235/5436—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
- C04B2235/02—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
- C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
-
- 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
-
- 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
- C04B2235/9692—Acid, alkali or halogen resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种SiC材料,包括:碳化硅粉末20~30%、废弃莫来石匣钵粗粉10~20%、废弃莫来石匣钵细粉10~20%、纳米氧化铝粉末10~20%、有机硅阻燃剂1~15%、低密度聚乙烯1~10%、聚氨酯1~10%、异丙醇1~10%、去离子水1~10%。本发明公开了一种SiC材料的制造方法,包括:将废弃莫来石匣钵进行机械破除粉碎,并筛分出废弃莫来石匣钵粗粉和废弃莫来石匣钵细粉;制备混合干料;制备混合湿料;制备成型坯;烧成即得到成品。本发明制备的SiC材料具有高耐热、耐酸碱、保温、成本低、高阻燃的性能。
Description
技术领域
本发明涉及废弃莫来石匣钵回收利用技术领域,更具体地说,本发明涉及一种以废弃莫来石匣钵为原料的SiC材料及其制造方法。
背景技术
莫来石是A12O3-SiO2系中在标准大气压下从室温到高温唯一稳定的晶相,莫来石为斜方晶系,晶体中硅铝氧结构是由[SiO4]四面体连接成的双链,连接一条条双链的是六配位的铝离子。由于莫来石的结构为双链状排列,故它的晶体一般呈针状、柱状结构,在一些高铝质,特别是电熔莫来石中可形成密集交错的针状莫来石结晶网。性能:莫来石材料具有优越的性能:耐火度高、热震稳定性好、热膨胀系数低、高温抗蠕变性好、具有很高的耐磨性及耐剥落、耐侵蚀性等,其应用极其广泛。莫来石匣钵一般使用的原料是酸性材料,对酸性材料的侵蚀有良好的抵抗作用;耐碱性匣钵主要是在耐火材料中加入部分碱性氧化物或偏碱性的材料,使得此类匣钵对碱性材料有良好的抗侵蚀性,延长了匣钵的使用寿命。随着锂电池行业的迅猛发展,莫来石匣钵在锂电池正极材料合成中占据主导地位。由于合成锂电池正极材料所用原料在合成过程中会分解产生渗透力和反应活性强的氧化锂对耐高温匣钵进行侵蚀,另一方面,匣钵材料在高温后快速冷却,随着使用次数的增加,匣钵容易产生裂纹,匣钵的热震稳定受到破坏,耐高温匣钵的使用寿命会大大降低。与此同时,大量的废弃莫来石匣钵给环境和相关企业带来了巨大的压力。
碳化硅质耐火材料具有导热系数高、热膨胀系数低、抗震性好、高温强度高、耐化学侵蚀性好、抗渣及锌铝铜铅等熔液侵蚀能力强和高温耐磨性能好等一系列优点,被广泛应用于冶金、化工、能源等各个高温行业中。当碳化硅作为换热器或辐射管的内衬时,不仅需要具备耐酸碱、耐磨等性能,还需要具有保温性能。
发明内容
本发明的一个目的是解决至少上述问题,并提供至少后面将说明的优点。
本发明还有一个目的是提供了一种高耐热、耐酸碱、保温、成本低、高阻燃的SiC材料。
为了实现上述目的,本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末20~30%、废弃莫来石匣钵粗粉10~20%、废弃莫来石匣钵细粉10~20%、纳米氧化铝粉末10~20%、有机硅阻燃剂1~15%、低密度聚乙烯1~10%、聚氨酯1~10%、异丙醇1~10%、去离子水1~10%。本发明中的聚氨酯为聚酯型聚氨酯。
优选地,本发明中,所述有机硅阻燃剂选自硅油、聚硅氧烷、丙烯酸酯-硅氧烷材料中的任意一种。
优选地,本发明中,所述碳化硅粉末的粒径为0.1~10μm,所述废弃莫来石匣钵粗粉的粒径为10~50mm,所述废弃莫来石匣钵细粉的粒径为0.01~0.1mm,所述纳米氧化铝粉末的粒径为1~50nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为10~50mm的废弃莫来石匣钵粗粉和粒径为0.01~0.1mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。
优选地,本发明中,所述步骤五中,首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;
然后以20℃/min的升温速度升温至1300~1500℃,并在1300~1500℃的温度下保温2~3h。
优选地,本发明中,所述步骤二中,球磨时间为1~2h。
本发明至少包括以下有益效果:
1、本发明提供的SiC材料实现了废弃莫来石匣钵的回收利用,并通过碳化硅、莫来石、纳米氧化铝的配合保证了材料的高耐热性能,并通过低密度聚乙烯、聚氨酯的配合保证了材料的化学稳定性、耐酸碱、耐腐蚀性能,同时具备优异的阻燃效果。
2、本发明通过将SiC材料降低了生产成本,实现了废料利用,为企业和环境减轻了压力。
本发明的其它优点、目标和特征将部分通过下面的说明体现,部分还将通过对本发明的研究和实践而为本领域的技术人员所理解。
具体实施方式
下面结合实施例对本发明做进一步的详细说明,以令本领域技术人员参照说明书文字能够据以实施。
应当理解,本文所使用的诸如“具有”、“包含”以及“包括”术语并不排除一个或多个其它元件或其组合的存在或添加。
实施例1
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末20%、废弃莫来石匣钵粗粉15%、废弃莫来石匣钵细粉15%、纳米氧化铝粉末10%、硅油10%、低密度聚乙烯5%、聚氨酯5%、异丙醇10%、去离子水10%。
碳化硅粉末的粒径为0.1μm,废弃莫来石匣钵粗粉的粒径为50mm,废弃莫来石匣钵细粉的粒径为0.01mm,纳米氧化铝粉末的粒径为50nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为50mm的废弃莫来石匣钵粗粉和粒径为0.01mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行2h球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程中:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1300℃,并在1300℃的温度下保温3h。
实施例2
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末30%、废弃莫来石匣钵粗粉10%、废弃莫来石匣钵细粉20%、纳米氧化铝粉末10%、聚硅氧烷5%、低密度聚乙烯10%、聚氨酯10%、异丙醇2%、去离子水3%。
碳化硅粉末的粒径为10μm,废弃莫来石匣钵粗粉的粒径为10mm,废弃莫来石匣钵细粉的粒径为0.1mm,纳米氧化铝粉末的粒径为1nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为10mm的废弃莫来石匣钵粗粉和粒径为0.1mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行1h球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程为:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1400℃,并在1400℃的温度下保温3h。
实施例3
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末25%、废弃莫来石匣钵粗粉20%、废弃莫来石匣钵细粉10%、纳米氧化铝粉末20%、丙烯酸酯-硅氧烷15%、低密度聚乙烯1%、聚氨酯4%、异丙醇1%、去离子水4%。
碳化硅粉末的粒径为1μm,废弃莫来石匣钵粗粉的粒径为20mm,废弃莫来石匣钵细粉的粒径为0.05mm,纳米氧化铝粉末的粒径为10nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为20mm的废弃莫来石匣钵粗粉和粒径为0.05mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行1h球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程为:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1500℃,并在1500℃的温度下保温2h。
实施例4
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末20%、废弃莫来石匣钵粗粉20%、废弃莫来石匣钵细粉20%、纳米氧化铝粉末15%、硅油1%、低密度聚乙烯9%、聚氨酯9%、异丙醇5%、去离子水1%。
碳化硅粉末的粒径为5μm,废弃莫来石匣钵粗粉的粒径为30mm,废弃莫来石匣钵细粉的粒径为0.1mm,纳米氧化铝粉末的粒径为10nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为30mm的废弃莫来石匣钵粗粉和粒径为0.1mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行2h球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程为:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1450℃,并在1450℃的温度下保温2.5h。
实施例5
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末20%、废弃莫来石匣钵粗粉20%、废弃莫来石匣钵细粉20%、纳米氧化铝粉末10%、聚硅氧烷10%、低密度聚乙烯7%、聚氨酯1%、异丙醇6%、去离子水6%。
碳化硅粉末的粒径为0.5μm,废弃莫来石匣钵粗粉的粒径为25mm,废弃莫来石匣钵细粉的粒径为0.01mm,纳米氧化铝粉末的粒径为5nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为25mm的废弃莫来石匣钵粗粉和粒径为0.01mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行2h球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程为:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1500℃,并在1500℃的温度下保温2h。
实施例6
本发明公开了一种SiC材料,按质量分数计,包括以下原料:
碳化硅粉末25%、废弃莫来石匣钵粗粉15%、废弃莫来石匣钵细粉15%、纳米氧化铝粉末15%、聚硅氧烷10%、低密度聚乙烯5%、聚氨酯5%、异丙醇5%、去离子水5%。
碳化硅粉末的粒径为10μm,废弃莫来石匣钵粗粉的粒径为10mm,废弃莫来石匣钵细粉的粒径为0.01mm,纳米氧化铝粉末的粒径为10nm。
本发明公开了一种SiC材料的制造方法,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为10mm的废弃莫来石匣钵粗粉和粒径为0.01mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。烧成过程为:首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;然后以20℃/min的升温速度升温至1400℃,并在1400℃的温度下保温3h。
实施例1~实施例6制备的SiC材料的耐火度大于1800℃。热稳定性:在1400℃使用次数大于20次。导热系数不小于0.9W/m·K。
尽管本发明的实施方案已公开如上,但其并不仅仅限于说明书和实施方式中所列运用,它完全可以被适用于各种适合本发明的领域,对于熟悉本领域的人员而言,可容易地实现另外的修改,因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节。
Claims (6)
1.一种SiC材料,其特征在于,按质量分数计,包括以下原料:
碳化硅粉末20~30%、废弃莫来石匣钵粗粉10~20%、废弃莫来石匣钵细粉10~20%、纳米氧化铝粉末10~20%、有机硅阻燃剂1~15%、低密度聚乙烯1~10%、聚氨酯1~10%、异丙醇1~10%、去离子水1~10%。
2.根据权利要求1所述的一种SiC材料,其特征在于,所述有机硅阻燃剂选自硅油、聚硅氧烷、丙烯酸酯-硅氧烷材料中的任意一种。
3.根据权利要求1所述的一种SiC材料,其特征在于,所述碳化硅粉末的粒径为0.1~10μm,所述废弃莫来石匣钵粗粉的粒径为10~50mm,所述废弃莫来石匣钵细粉的粒径为0.01~0.1mm,所述纳米氧化铝粉末的粒径为1~50nm。
4.一种根据权利要求1~3任意一项所述的SiC材料的制造方法,其特征在于,包括以下步骤:
步骤一、将废弃莫来石匣钵进行机械破除粉碎,并筛分出粒径为10~50mm的废弃莫来石匣钵粗粉和粒径为0.01~0.1mm的废弃莫来石匣钵细粉;
步骤二、按配方称取原料,对所述碳化硅粉末进行球磨,并将球磨后的碳化硅粉末与废弃莫来石匣钵粗粉、废弃莫来石匣钵细粉及纳米氧化铝粉末混合均匀,得到混合干料;
步骤三、将所述混合干料与有机硅阻燃剂、低密度聚乙烯、聚氨酯、异丙醇及去离子水混合均匀,得到混合湿料;
步骤四、将所述混合湿料进行真空挤压成型,得到成型坯;
步骤五、将所述成型坯置于高温窑炉中进行烧成,烧成后冷却至室温即得到成品。
5.根据权利要求4所述的一种SiC材料的制造方法,其特征在于,所述步骤五中,首先将高温窑炉的温度以10℃/min的升温速度升温至200℃,并在200℃的温度下保温0.5h;
然后以20℃/min的升温速度升温至1300~1500℃,并在1300~1500℃的温度下保温2~3h。
6.根据权利要求4所述的一种SiC材料的制造方法,其特征在于,所述步骤二中,球磨时间为1~2h。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910425033.3A CN110451981A (zh) | 2019-05-21 | 2019-05-21 | 一种SiC材料及其制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910425033.3A CN110451981A (zh) | 2019-05-21 | 2019-05-21 | 一种SiC材料及其制造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110451981A true CN110451981A (zh) | 2019-11-15 |
Family
ID=68480965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910425033.3A Withdrawn CN110451981A (zh) | 2019-05-21 | 2019-05-21 | 一种SiC材料及其制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110451981A (zh) |
-
2019
- 2019-05-21 CN CN201910425033.3A patent/CN110451981A/zh not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018006835A1 (zh) | 一种具有双重孔结构的耐高温轻质绝热材料及其制备方法 | |
US3979216A (en) | Low thermal expansion coefficient synthetic cordierite-containing ceramic bodies and method for producing same | |
Choo et al. | Modified cenospheres as non-sacrificial pore-forming agent for porous mullite ceramics | |
CN100393656C (zh) | 一种莫来石质高强防腐烟囱内衬砖及其制造方法 | |
CN114149276A (zh) | 一种含氧化锆的微纳孔绝隔热耐火材料及其制备方法 | |
CN112811923A (zh) | 一种利用固体废弃物制备高强度发泡陶瓷的方法 | |
CN111620679A (zh) | 一种以熔融二氧化硅为硅源制备高纯莫来石材料的方法 | |
CN103833383B (zh) | 一种闭孔结构的刚玉-镁铝尖晶石质耐火骨料的制备方法 | |
CN106167398A (zh) | 蜂窝陶瓷蓄热体及其制备方法 | |
CN111302769A (zh) | 一种低铝镁质复合不烧砖及其制备方法 | |
CN115160001A (zh) | 用于垃圾焚烧炉的多基复合低导热耐火砖 | |
CN100532319C (zh) | 一种钼刚玉陶瓷材料及低温烧结方法 | |
CN110483046A (zh) | 一种高发射率红外节能材料以及制备方法 | |
CN110451991A (zh) | 一种以废弃莫来石匣钵为原料的浇注料及其生产方法 | |
SK138493A3 (en) | Method of manufacturing of sintering, mainly round shaped particles of oxide aluminate | |
CN106430981A (zh) | 一种含改性粉煤灰的堇青石基微晶玻璃及其制备工艺 | |
CN106830690B (zh) | 一种自增强增韧的氮化硅/氮化铝/镧钡铝硅酸盐微晶玻璃三元复合材料及其制备方法 | |
CN109111209A (zh) | 一种水泥窑用微晶材料 | |
US20040222572A1 (en) | Sialon ceramics | |
CN110451981A (zh) | 一种SiC材料及其制造方法 | |
CN109231972B (zh) | 轻质电熔刚玉砖 | |
CN101367663B (zh) | 熔融再结合复合氧化铝耐火材料 | |
CN114315347B (zh) | 一种锆酸钡/氧化镁复合陶瓷材料及其制备方法 | |
CN112897994A (zh) | 一种刚玉尖晶石复相材料制备方法 | |
CN106316426B (zh) | 一种抗断裂耐火材料及其制备工艺 |
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 | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191115 |