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Fabrication and plasma arc thermal shock resistance of HfB2-based ultra high temperature ceramics
  • ISSN号：1000-0992
  • 期刊名称：《力学进展》
  • 时间：0
  • 分类：TQ174.758[化学工程—陶瓷工业;化学工程—硅酸盐工业] TG483[金属学及工艺—焊接]
  • 作者机构：[1]School of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China, [2]Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, China
  • 相关基金：Project（90505015） supported by the National Natural Science Foundation of China; Project（20060213031） supported by the Research Fund for the Doctoral Program of Higher Education of China
作者： 翁凌[1], 韩文波[2], 洪长青[2]
关键词： 等离子弧, 超高温陶瓷, 陶瓷基复合材料, 抗热震性, 铝复合材料, 热冲击试验, 热压烧结, 制造, hafnium diboride, thermal shock resistance, plasma arc test, microstructure
中文摘要：

二铪 diboride 原文如此基于包含 20% 的陶器的矩阵 composites (体积部分) 粒子并且与或没有 sintering 添加剂被 hot-pressed sintering 制作的 AlN。这二 composites 的机械性质和微观结构被测试，热吃惊电阻被血浆弧加热器评估。结果显示与 sintering 添加剂有更稠密、更好的微观结构比的 AlN 合成没有 sintering 添加剂，和机械性质合成，热吃惊抵抗与 sintering 添加剂也比那些高的 AlN 合成没有 AlN 合成。在热吃惊测试以后的二 composites 的剖面图上的微观结构分析显示紧缩的氧化规模包含液体阶段在表面上被发现的 HfO2 和 Al2O3 与 AlN 合成，它能充满表面的虚空和裂缝并且改进热吃惊抵抗合成。

英文摘要：

Two hafnium diboride based ceramic matrix composites containing 20% （volume fraction） SiC particle and with or without AIN as sintering additives were fabri,aated by hot-pressed sintering. The mechanical properties and microstructures of these two composites were tested and the thermal shock resistances were evaluated by plasma arc heater. The results indicate that the composite with A1N as sintering additive has a denser and finer microstructure than composite without sintering additive, and the mechanical properties, thermal shock resistance of the composite with A1N as sintering additive are also higher than those of the composite without A1N. Microstructure analysis on the cross-section of two composites after thermal shock tests indicates that a compact oxidation scale contains HfO2 and Al2O3 liquid phase is found on the surface of composite with A1N, which could fill the voids and cracks of surface and improve the thermal shock resistance of composite.

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期刊信息
  • 《力学进展》
  • 北大核心期刊（2014版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院力学研究所 中国力学学会
  • 主编：樊菁
  • 地址：北京市海淀区北四环西路15号
  • 邮编：100190
  • 邮箱：lxjz@cstam.org.cn
  • 电话：010-62637035
  • 国际标准刊号：ISSN：1000-0992
  • 国内统一刊号：ISSN：11-1774/O3
  • 邮发代号:82-331
  • 获奖情况:
  • 1996、2000年分别获中科院优秀期刊三等、二等奖,1998年列入数理力学类的第三名,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
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  • 被引量:13273