CN112876255A - 一种碳化硅陶瓷制品及其制备方法 - Google Patents
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 53
- 239000000919 ceramic Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000843 powder Substances 0.000 claims abstract description 131
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000011230 binding agent Substances 0.000 claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 28
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 238000005245 sintering Methods 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007849 furan resin Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000005011 phenolic resin Substances 0.000 claims abstract description 9
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000004846 water-soluble epoxy resin Substances 0.000 claims abstract description 9
- 239000007767 bonding agent Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- RIVIDPPYRINTTH-UHFFFAOYSA-N n-ethylpropan-2-amine Chemical compound CCNC(C)C RIVIDPPYRINTTH-UHFFFAOYSA-N 0.000 claims description 6
- BHHGXPLMPWCGHP-UHFFFAOYSA-N Phenethylamine Chemical compound NCCC1=CC=CC=C1 BHHGXPLMPWCGHP-UHFFFAOYSA-N 0.000 claims description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- WGTASENVNYJZBK-UHFFFAOYSA-N 3,4,5-trimethoxyamphetamine Chemical compound COC1=CC(CC(C)N)=CC(OC)=C1OC WGTASENVNYJZBK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229940117803 phenethylamine Drugs 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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Abstract
一种碳化硅陶瓷制品及其制备方法,涉及陶瓷材料领域,包括骨料、粉料和结合剂,骨料与粉料按下述重量份配置而成:骨料与粉料的重量配比为:骨料∶粉料=55~65∶35~45;骨料为碳化硅颗粒;粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=70~80∶20~30∶2~5;结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2~4%;通过原料配比、浆料制备、成型和高温烧成步骤制备而成;本发明所制备的陶瓷制品既具有碳化硅优良的高温性能,同时也具有非常优良的热震稳定性,能够有效地提高碳化硅窑具制品的使用寿命。
Description
技术领域
本发明涉及陶瓷材料领域,尤其是涉及一种碳化硅陶瓷制品及其制备方法。
背景技术
公知的,碳化硅陶瓷是一种高导热、高强度、高硬度、耐腐蚀的高温陶瓷,大量应用在航空航天、核能、机械、化工、微电子、汽车、石油及加工等领域。碳化硅陶瓷能在恶劣的高温环境下应用,主要由于在其表面可以生成一层致密的二氧化硅膜,从而具有良好的抗氧化性能,然而由于碳化硅属于共价键难熔化合物,其在高温下的自扩散系数非常低,在常规条件下很难达到良好烧结,因此会存在使用寿命较短的现象。
发明内容
为了克服背景技术中的不足,本发明公开了一种碳化硅陶瓷制品及其制备方法。
为了实现所述发明目的,本发明采用如下技术方案:
一种碳化硅陶瓷制品,包括骨料、粉料和结合剂,骨料与粉料按下述重量份配置而成:
骨料与粉料的重量配比为:骨料∶粉料=55~65∶35~45;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=70~80∶20~30∶2~5;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2~4%。
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为笨乙胺或异丙基乙胺中的一种,固化剂的加入量为骨料、粉料总重量的0.2~0.5%。
由于采用了上述技术方案,本发明具有如下有益效果:
1、本发明所述的碳化硅陶瓷制品的制备方法,利用低热膨胀系数的堇青石材料在烧结温度下所产生的液相使碳化硅达到良好烧结,所制备陶瓷制品具有非常优良的热震稳定性;通过在堇青石细粉中加入氧化铝细粉能够有效地提高制品的使用温度;采用水溶性有机树脂作为结合剂替代水泥和其它含有无机非金属杂质的结合剂,不仅避免了有害杂质的摄入,而且具有良好的流动性和凝固性,能够浇注任何复杂形状的陶瓷制品;本发明所制备的陶瓷制品既具有碳化硅优良的高温性能,同时也具有非常优良的热震稳定性,能够有效地提高碳化硅窑具制品的使用寿命。
2、本发明所述的碳化硅陶瓷制品的制备方法,加入金属铝粉可以防止和减少碳化硅的氧化,且金属铝粉氧化后生成氧化铝,对制品的高温性能没有影响。
具体实施方式
通过下面的实施例可以详细的解释本发明,公开本发明的目的旨在保护本发明范围内的一切技术改进。
所述的碳化硅陶瓷制品,包括骨料、粉料和结合剂,骨料与粉料按下述重量份配置而成:
骨料与粉料的重量配比为:骨料∶粉料=55~65∶35~45;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=70~80∶20~30∶2~5;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2~4%。
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为笨乙胺或异丙基乙胺的一种,固化剂的加入量为骨料、粉料总重量的0.2~0.5%。
实施例1
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
骨料与粉料的重量配比为:骨料∶粉料=55∶45;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=70∶25∶5;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2%。
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为笨乙胺,固化剂的加入量为骨料、粉料总重量的0.5%。
实施例2
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
骨料与粉料的重量配比为:骨料∶粉料=65∶35;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=80∶18∶2;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的4%。
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为笨乙胺,固化剂的加入量为骨料、粉料总重量的0.2%。
实施例3
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
骨料与粉料的重量配比为:骨料∶粉料=55~65∶35~45;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=75∶20∶5;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2.5%。
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为异丙基乙胺,固化剂的加入量为骨料、粉料总重量的0.3%。
实施例4
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
骨料与粉料的重量配比为:骨料∶粉料=58∶42;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=73∶24∶3;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的3.5%。
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为异丙基乙胺,固化剂的加入量为骨料、粉料总重量的0.4%。
实施例5
一种碳化硅陶瓷制品的制备方法,具体包括以下步骤:
(1)、原料配比:
骨料与粉料的重量配比为:骨料∶粉料=62∶38;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=74∶22∶4;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2.5%。
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
所述的碳化硅陶瓷制品的制备方法,步骤(2)中所述的固化剂为异丙基乙胺,固化剂的加入量为骨料、粉料总重量的0.25%。
本发明未详述部分为现有技术。
为了公开本发明的发明目的而在本文中选用的实施例,当前认为是适宜的,但是,应了解的是,本发明旨在包括一切属于本构思和发明范围内的实施例的所有变化和改进。
Claims (3)
1.一种碳化硅陶瓷制品,包括骨料、粉料和结合剂,其特征是:骨料与粉料按下述重量份配置而成:
骨料与粉料的重量配比为:骨料∶粉料=55~65∶35~45;
骨料为碳化硅颗粒;
粉料为堇青石细粉、氧化铝细粉和金属铝粉;粉料的重量配比为:堇青石细粉∶氧化铝细粉:金属铝粉=70~80∶20~30∶2~5;
结合剂为水溶性环氧树脂、水溶性酚醛树脂、水溶性呋喃树脂中的任意一种或两种组合,结合剂的加入量为骨料、粉料总重量的2~4%。
2.一种碳化硅陶瓷制品的制备方法,其特征是:具体包括以下步骤:
(1)、原料配比:
将骨料碳化硅颗粒,粉料堇青石细粉、氧化铝细粉、金属铝粉与结合剂按重量配比,备用;
(2)、浆料制备:将上述骨料和粉料在混料机中混合均匀,成为混合料,再将混合料与结合剂、固化剂的水溶液一同加入到搅拌桶中搅拌成浆料;
(3)、成型方法:将步骤(2)中制成的浆料浇注到金属模具中,待凝固后脱模并将脱模后的坯体烘干;
(4)、高温烧成:将成型后的坯体放入高温窑炉中进行烧结,烧结温度为1380℃~1420℃,保温4~6小时。
3.根据权利要求2所述的碳化硅陶瓷制品的制备方法,其特征是:步骤(2)中所述的固化剂为笨乙胺或异丙基乙胺中的一种,固化剂的加入量为骨料、粉料总重量的0.2~0.5%。
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