烧结工艺和粘结剂对SiC泡沫陶瓷网络结构的影响
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摘要
主要阐述了SiC基泡沫陶瓷的结构、性能、制造工艺和应用前景。使用了有机前驱体浸渍法制备SiC基泡沫陶瓷,通过比较在不同条件下(不同粘结剂含量和烧成温度保温时间)试样的常温耐压强度、热震稳定性、容重和孔隙率等性能参数,并用扫描电镜(SEM)对泡沫陶瓷显微结构进行了形貌分析,系统的分析实验条件对试样的影响。实验结果表明:SiC基泡沫陶瓷在1 450℃时的烧结保温3 h比保温2 h和4 h的热震次数多和抗压强度高;粘结剂的加入能够有效提高坯体的挂浆效果,较高温度烧结会导致烧结体产生大量玻璃相,降低其耐火度和高温强度。在1 450℃保温3 h粘结剂加入量为8%的SiC基泡沫陶瓷抗压强度为0.632 MPa,900℃加热、20℃水急冷其热震次数高达16次。烧结温度为1 450℃时制备的SiC基泡沫陶瓷过滤器具有较好的综合性能。
This paper describes the structure of SiC-based ceramic foam, performance, manufacturing processes and applications. Organic precursor used in impregnation SiC-based ceramic foam, by comparing the different conditions(different binder content and sintered at different temperatures) samples at room temperature compressive strength, thermal shock stability, bulk density and porosity and other performance parameters And by scanning electron microscopy(SEM) on the microstructure of the ceramic foam morphology, systematic analysis of the impact of experimental conditions on the sample. Experimental results show that: SiC-based ceramic foam sintered at 1 450 ℃ and heat preservation time was 3 h is better than heat preservation time was 2 h and 4 h than sintering thermal shock and high compressive strength more often, binder added to improve green body hanging plasma effect, high temperature sintering will lead to a large amount of sintered glass phase, refractoriness and high temperature reduce the strength of SiC-based ceramic foam is not conducive to the comprehensive performance parameters. 1 450 ℃ sintering binder prepared by adding 8% of the amount of compressive strength of SiC-based ceramic foam 0.632 MPa, 900 ℃ heating, 20 ℃ water quench thermal shock up to 16 times. When the sintering temperature is 1 450 ℃ SiC-based ceramic foam prepared filter has better overall performance.
This paper describes the structure of SiC-based ceramic foam, performance, manufacturing processes and applications. Organic precursor used in impregnation SiC-based ceramic foam, by comparing the different conditions(different binder content and sintered at different temperatures) samples at room temperature compressive strength, thermal shock stability, bulk density and porosity and other performance parameters And by scanning electron microscopy(SEM) on the microstructure of the ceramic foam morphology, systematic analysis of the impact of experimental conditions on the sample. Experimental results show that: SiC-based ceramic foam sintered at 1 450 ℃ and heat preservation time was 3 h is better than heat preservation time was 2 h and 4 h than sintering thermal shock and high compressive strength more often, binder added to improve green body hanging plasma effect, high temperature sintering will lead to a large amount of sintered glass phase, refractoriness and high temperature reduce the strength of SiC-based ceramic foam is not conducive to the comprehensive performance parameters. 1 450 ℃ sintering binder prepared by adding 8% of the amount of compressive strength of SiC-based ceramic foam 0.632 MPa, 900 ℃ heating, 20 ℃ water quench thermal shock up to 16 times. When the sintering temperature is 1 450 ℃ SiC-based ceramic foam prepared filter has better overall performance.
引文
1 阪口美喜夫,星田浩树,井上启作.玻璃成形模具用陶瓷.中国专利,CN 1785902A.2006-03-26
2 Naslain R.CVI omposites.In:Warren Red.Ceramic Matrix Composites.London:Chapmannd Hall,1992
3 杜善义,韩杰才,李文芳,等.陶瓷基复合材料的发展及在航空宇航器上的应用前景.宇航材料工艺,1991(5):1～5
4 张玉娣,周新贵,张长瑞.Cf/SiC陶瓷基复合材料的发展与应用现状.材料工程,2005(4):60～63
5 Fiter E,Gadow R.Fiber-reinforced silicon carbide.American Ceramic Society Bulletin,1986,65(2):326～335
6 Katoh Y,Dong S M,Kohyama A.Thermo-mechanical properties and microstructure of silicon carbide composites fabricated by nano-infiltrated.Fusion Engineering and Design,2002,61～62:723～731
7 Katoh Y,Dong S M,Kohyama A.Preparation of SiC/SiC composites by hot pressing,using Tyranno-SA fiber as reinforcement.Journal of the American Ceramic Society,2003,86(1):26～32
8 Katoh Y,Dong S M,Kohyama A.A novel processing technique of solicon carbide-based ceramic composites for high temperature applications.Ceramic Transactions,2002,144:77～86
9 王敏.陶瓷材料磨削加工性综合评价方法.天津:天津大学出版社,2006
10 Xu Yongdong,Cheng Laifei,Zhang Litong.Oxidation behavior and mechanical propeties of C/SiC composites with Si-MoSi2 oxidation protection coating.Joural of Materials Science,1999,45:6 009～6 014
11 徐旬.Fuzzy数学在材料切削加工型评价中的应用.沈阳建筑工程学院学报,1990(6):1～4
12 陆伟峰.聚类法模糊系统建模的研究与进展.无锡南洋学院学报,2007(6):4～8
13 林树兴,陈建红.材料切削加工性度量的指标体系及评判方法.工具技术,1997,31(4):3～6
14 葛陪琪,程建辉,张磊,等.磨削液磨削加工特性的研究.润滑与密封,2003(4):9～10
15 李小兵,刘莹.不同机加工表面微观形貌特征分析.润滑与密封,2007(7):26～28
16 刘桂玲,陈建.残余碳对SiC陶瓷光学表面加工性.2010(8):1 523～1 526
17 赵世海,蒋秀明.机加工对陶瓷性能的影响机理及可加工陶瓷材料.机械工程材料,2006(6):4～6
18 江涛,金志浩,乔冠军.可加工B4/BN复相陶瓷的制备与性能研究.稀有金属材料与工程,2007,36(A03):585～588
19 章为胰,高宏.可加工陶瓷的结构、性能和制备.人工晶体学报,2005(1):233～237
20 王瑞刚,潘伟.可加工陶瓷及工程陶瓷加工技术现状及发展.硅酸盐通报,2001(3):27～35
21 钟利军,刘继广.可加工陶瓷材料可加工性的模糊综合评判.工艺与检测,2008(1):91～93
22 Katoh Y,Dong S M,Kohyama A.A novel processing technique of solicon carbide-based ceramic composites for high temperature applications.Ceramic Transactions,2002,144:77～86
23 Katoh Y,Dong S M,Kohyama A.Development of SiC/SiC composites by Nano-Infiltration and Transient Eutectic (NITE) process.Ceramic Engineering and Science Proceedings,2002,23:311～318
2 Naslain R.CVI omposites.In:Warren Red.Ceramic Matrix Composites.London:Chapmannd Hall,1992
3 杜善义,韩杰才,李文芳,等.陶瓷基复合材料的发展及在航空宇航器上的应用前景.宇航材料工艺,1991(5):1～5
4 张玉娣,周新贵,张长瑞.Cf/SiC陶瓷基复合材料的发展与应用现状.材料工程,2005(4):60～63
5 Fiter E,Gadow R.Fiber-reinforced silicon carbide.American Ceramic Society Bulletin,1986,65(2):326～335
6 Katoh Y,Dong S M,Kohyama A.Thermo-mechanical properties and microstructure of silicon carbide composites fabricated by nano-infiltrated.Fusion Engineering and Design,2002,61～62:723～731
7 Katoh Y,Dong S M,Kohyama A.Preparation of SiC/SiC composites by hot pressing,using Tyranno-SA fiber as reinforcement.Journal of the American Ceramic Society,2003,86(1):26～32
8 Katoh Y,Dong S M,Kohyama A.A novel processing technique of solicon carbide-based ceramic composites for high temperature applications.Ceramic Transactions,2002,144:77～86
9 王敏.陶瓷材料磨削加工性综合评价方法.天津:天津大学出版社,2006
10 Xu Yongdong,Cheng Laifei,Zhang Litong.Oxidation behavior and mechanical propeties of C/SiC composites with Si-MoSi2 oxidation protection coating.Joural of Materials Science,1999,45:6 009～6 014
11 徐旬.Fuzzy数学在材料切削加工型评价中的应用.沈阳建筑工程学院学报,1990(6):1～4
12 陆伟峰.聚类法模糊系统建模的研究与进展.无锡南洋学院学报,2007(6):4～8
13 林树兴,陈建红.材料切削加工性度量的指标体系及评判方法.工具技术,1997,31(4):3～6
14 葛陪琪,程建辉,张磊,等.磨削液磨削加工特性的研究.润滑与密封,2003(4):9～10
15 李小兵,刘莹.不同机加工表面微观形貌特征分析.润滑与密封,2007(7):26～28
16 刘桂玲,陈建.残余碳对SiC陶瓷光学表面加工性.2010(8):1 523～1 526
17 赵世海,蒋秀明.机加工对陶瓷性能的影响机理及可加工陶瓷材料.机械工程材料,2006(6):4～6
18 江涛,金志浩,乔冠军.可加工B4/BN复相陶瓷的制备与性能研究.稀有金属材料与工程,2007,36(A03):585～588
19 章为胰,高宏.可加工陶瓷的结构、性能和制备.人工晶体学报,2005(1):233～237
20 王瑞刚,潘伟.可加工陶瓷及工程陶瓷加工技术现状及发展.硅酸盐通报,2001(3):27～35
21 钟利军,刘继广.可加工陶瓷材料可加工性的模糊综合评判.工艺与检测,2008(1):91～93
22 Katoh Y,Dong S M,Kohyama A.A novel processing technique of solicon carbide-based ceramic composites for high temperature applications.Ceramic Transactions,2002,144:77～86
23 Katoh Y,Dong S M,Kohyama A.Development of SiC/SiC composites by Nano-Infiltration and Transient Eutectic (NITE) process.Ceramic Engineering and Science Proceedings,2002,23:311～318