碳源对反应烧结B_4C/SiC复合陶瓷的影响

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英文篇名：Effect of Carbon Source on the Reaction Sintering B_4C/SiC Composite Ceramic 作者：翟彦霞 ; 李兆敏 ; 孙海滨 ; 张玉军 英文作者：ZHAI Yanxia;LI Zhaomin;SUN Haibin;ZHANG Yujun;Shandong Baona New Materials Co., Ltd.;School of materials science and engineering, Shandong University of Technology;Key Laboratory for liquid-solid Structural Evolution & Processing of Materials of Ministry of Education, Shandong University; 关键词：碳源 ; 反应烧结 ; B4C/SiC ; 复合陶瓷 英文关键词：carbon source;;reaction sintered;;B4C/SiC;;composite ceramic 中文刊名：TCXB 英文刊名：Journal of Ceramics 机构：山东宝纳新材料有限公司;山东理工大学材料科学与工程学院;山东大学材料液固结构与加工教育部重点实验室; 出版日期：2018-02-08 14:19 出版单位：陶瓷学报 年：2018 期：v.39 基金：山东省科技重大专项(军民科技融洽)(2015JMRH109) 语种：中文; 页：TCXB201801029 页数：4 CN：01 ISSN：36-1205/TS 分类号：102-105

摘要

本文以酚醛树脂和碳黑为碳源,在碳总加入量一定的情况下,研究了酚醛树脂和碳黑添加比例对反应烧结B_4C/SiC复合陶瓷性能及物相组成的影响。结果表明:在酚醛树脂/碳黑比例在1:8-5:4范围内,比例较小时,B_4C/SiC复合陶瓷试样中游离硅含量较高,力学性能较差;当酚醛树脂/碳黑比例为4:5时,试样致密,综合性能最佳,体积密度为2.75 g/cm~3,维氏硬度、弯曲强度和断裂韧性分别达到30.96 GPa,424 MPa、5.58 MPa·m~(1/2);试样的主晶相为SiC、B_4C和Si,并且Si均匀分布在B_4C和SiC形成的连续相中。
        In this paper, recation sintered B_4C/SiC composite ceramics were fabricated taking phenolic resin and carbon black as carbon sources, and the effects of phenolic resin and carbon black addition ratio on the properties and phase composition were studied. The results show that, in the phenolic resin/carbon black ratio range of 1:8-5:4, B_4C/SiC composite ceramics have high free silicon content and poor mechanical properties at a relatively low phenolic resin/carbon black ratio. When the phenolic resin/carbon black is 4:5, the vickers hardness, flexural strength and fracture toughness were 30.96 GPa, 424 MPa, 5.58 MPa·m~(1/2), respectively. The samples were sufficiently dense and the comprehensive performance was the best, and the bulk density was 2.75 g/cm~3. The main crystal phases are SiC, B_4C and Si, and Si is uniformly distributed in the continuous phase formed by B_4C and SiC.

引文

[1]尹茜,张玉军.反应烧结Si C-B4C陶瓷材料的研究[J].陶瓷,2007,(2):18-21.YIN Q,ZHANG Y J.Ceramic,2007,(2):18-21.
    [2]Paik U,Park HC,Choi SC,et al.Effect of Particle Dispersion on Microstructure and Strength of Reaction-Bonded Silicon Carbide[J].Materials Science and Engineering A,2002,334(1-2):267-274.
    [3]鲍崇高,宋索成,赵黎明.反应烧结碳化硅陶瓷中碳化硼-碳纤维联合增强机制[J].稀有金属材料与工程,2015,(S1):229-233.BAO C G,SONG S C,ZHAO LM.Rare Metal Materials and Engineering,2015,(S1):229-233.
    [4]GAO Xiao-Ju,CAO Jian-Wu,CHENG Lai-Fei,et al.Effect of Carbon Content on Mechanical Properties of Si C/B4CPrepared by Reaction Sintering[J].Journal of Inorganic Materials,2015,30(1):02-106.
    [5]Hayun S,Frae N,Dariel MP.The morphology of ceramic phases in Bx C-Si C-Si infiltrated composites[J].Journal of Solid State Chemistry,2006,179:2875-2879.
    [6]Hayun S,Weizmann A,Dariel M P,et al.Microstructural evolution during the infiltration of boron carbide with molten silicon[J].Journal of the European Ceramic Society,2010,(30):1007-1014.