单体含量对凝胶注模成型渗硅烧结Si/SiC复相陶瓷性能的影响
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- 英文论文题名：EFFECTS OF MONOMER CONTENT ON PROPERTIES OF Si/SiC COMPOSITE CERAMICS BY GEL-CASTING AND GSI PROCESS
- 论文作者：黄禄明 ; 刘荣军 ; 张长瑞 ; 曹英斌
- 英文论文作者：HUANG Lu-ming ; LIU Rong-jun ; ZHANG Chang-rui ; CAO Ying-bin ; Science and Technology on Advanced Ceramic Fibers and Composites Laboratory ; National University of Defense Technology
- 年：2016
- 作者机构：国防科技大学航天科学与工程学院新型陶瓷纤维及其复合材料重点实验室;
- 论文关键词：凝胶注模 ; 单体含量 ; 碳化硅 ; 气相渗硅 ; 复相陶瓷
- 英文论文关键词：gel-casting ; monomer content ; SiC ; GSI ; composite ceramic
- 会议召开时间：2016-09-22
- 会议录名称：第二十一届全国玻璃钢/复合材料学术年会论文集（《玻璃钢/复合材料》2016增刊）
- 语种：中文
- 分类号：TQ174.1
- 学会代码：EUGQ
- 会议名称：第二十一届全国玻璃钢/复合材料学术年会
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国硅酸盐学会玻璃钢分会
- 学会名称：中国硅酸盐学会
- 页数：5
- 文件大小：1097k
- 原文格式：O
- 会议级别：全国
摘要
凝胶注模体系中单体含量对成型后素坯和烧结后陶瓷的性能都有十分重要的影响。以炭黑、碳化硅为主要原料,采用凝胶注模成型渗硅烧结的工艺制备Si/SiC复相陶瓷,研究单体含量在浆料配制、干燥成型、渗硅烧结等过程中产生的影响。研究结果表明,适当提高凝胶体系中的单体含量有助于减少干燥收缩,提高素坯及渗硅后陶瓷强度及致密度等;而单体含量过高则会导致浆料粘度增加、材料性能下降。
Monomer content can cause a significant effect on both the green body by gel-casting and the ceramic after sintering.In this study,carbon and SiC are used as raw materials,Si/SiC composite ceramic is fabricated by gel-casting and gas silicon infiltration(GSI),effects of monomer content on slurry preparation,drying-molding and GSI process are studied.Results show that the growth of AM content can reduce drying shrinkage and increase the strength of samples before and after sintering,however,exorbitant AM content can lead to a high viscosity of slurry and the properties of samples degradate.
Monomer content can cause a significant effect on both the green body by gel-casting and the ceramic after sintering.In this study,carbon and SiC are used as raw materials,Si/SiC composite ceramic is fabricated by gel-casting and gas silicon infiltration(GSI),effects of monomer content on slurry preparation,drying-molding and GSI process are studied.Results show that the growth of AM content can reduce drying shrinkage and increase the strength of samples before and after sintering,however,exorbitant AM content can lead to a high viscosity of slurry and the properties of samples degradate.
引文
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[8]王小锋,王日初,彭超群,等.凝胶注模成型技术的研究与发展[J].中国色金属学报,2010(3):496-509.
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[11]金晓,蔡锴,刘炜,等.单体含量对凝胶注模工艺固化时内应力及坯体性能的影响[J].硅酸盐学报,2011,39(5):794-798.
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[14]黄禄明,张长瑞,刘荣军,等.C/SiC复合材料轻型反射镜光学改性涂层技术研究进展[J].硅酸盐通报,2016,35(5):1514.1519.
[15]赵亚萍,王榕林,张军伟.SiC基复相陶瓷凝胶注模成型工艺研究进展[J].中国陶瓷工业,2015,22(4):20-24.
[2]B.Li,K.Liu,C.R.Zhang,et al.Fabrication and properties of borazine derived boron nitride bonded porous silicon aluminum oxynitride wave-transparent composite[J].J.Eur.Ceram.Soc.,2014(34):3591-3595.
[3]A.Barati,M.Kokabi,M.H.N.Famili.Drying of gelcast ceramic parts via the liquid desiccant method[J].J.Eur.Ceram.Soc.,2003,23(13):2265-2272.
[4]Y.Huang,L.G.Ma,J.L.Yang.Improving the homogeneity and reliability of ceramic parts with complex shapes by pressure-assisted gelcasting[J].Mater.Lett.,2004,58(30):3893-3897.
[5]董斌超,张舸.超轻量化SiC反射镜的制备及性能[J].光学精密工程,2015,23(8):2185-2191.
[6]张舸.1.5m量级SiC陶瓷素坯凝胶注模成型工艺[J].光学精密工程,2013,21(12):2889-2993.
[7]X.Yang,B.Li,C.Zhang,et al.Fabrication and properties of porous silicon nitride wave-transparent ceramics via gel-casting and pressureless sintering[J].Mater.Sci.Eng.A,2016(663):174-180.
[8]王小锋,王日初,彭超群,等.凝胶注模成型技术的研究与发展[J].中国色金属学报,2010(3):496-509.
[9]Potoczek M.A catalytic effect of alumina grains onto polymerization rate of methacrylamide-based gelcasting system[J].Ceram Int,2006,32:739-744.
[10]王亚利,郝俊杰。郭志猛.凝胶注模成型生坯强度影响因素的研究[J].材料科学与工程学报,2007,25(2):262-264.
[11]金晓,蔡锴,刘炜,等.单体含量对凝胶注模工艺固化时内应力及坯体性能的影响[J].硅酸盐学报,2011,39(5):794-798.
[12]J.Zhang,D.Jiang,Q.Lin,et al.Properties of silicon carbide from gelcasting and pressureless sintering[J].Material Design,2015(65):12-16.
[13]严春雷,刘荣军,张长瑞,等.气相渗硅制备C/SiC复合材料[J].航空制造工程,2014(6):122-128.
[14]黄禄明,张长瑞,刘荣军,等.C/SiC复合材料轻型反射镜光学改性涂层技术研究进展[J].硅酸盐通报,2016,35(5):1514.1519.
[15]赵亚萍,王榕林,张军伟.SiC基复相陶瓷凝胶注模成型工艺研究进展[J].中国陶瓷工业,2015,22(4):20-24.