欢迎登录材料期刊网

材料期刊网

高级检索

以天然焦宝石熟料、工业铝粉和活性炭粉为原料高温合成碳硅化铝耐火材料.研究1600℃、1700℃和1800℃不同烧结温度对碳硅化铝耐火材料的影响,对材料进行了物相组成、显微结构和烧结性能的测试,进而探讨氧化物合成碳硅化铝耐火材料的烧结机理和动力学过程.结果表明:原料在氩气气氛下经过1400℃保温10h处理,然后在1800℃烧结后得到了物相组成为Al4SiC4,Al4O4C和C的耐火材料.其常温耐压强度为35~36MPa,体积密度为2.6~2.7g·cm-3,显气孔率在18~19%之间.所制备的材料中,Al4SiC4晶粒呈片状和板状,尺寸约为10μm,厚度2μm左右,分布均匀;Al4O4C分布在Al4SiC4品粒的边缘和缝隙中,尺寸约2~3μm.

参考文献

[1] Koji Inoue;Akira Yamaguchi .Synthesis of Al_4SiC_4[J].Journal of the American Ceramic Society,2003(6):1028-1030.
[2] YOKOKAWA H;DOKIYA M;FUJISHIGE M et al.X-ray powder diffraction data for two hexagonal aluminum monoxy carbide phases[J].American Ceramic Society,1982,65(01):40-41.
[3] WEN G W;HUANG X X .Increased high temperature strength and oxidation resistance of Al4SiC4 ceramics[J].European Ceramic Society,2006,26(07):281-1286.
[4] YAMAGUCHI AKIRA;ZHANG Shaowei .Synthesis and some properties of Al4SiC4[J].Ceram Soc Japan,1995,103(01):20-24.
[5] ZHANG S;YAMAGUCHI A .Hydration Resistances and Reactions with CO of Al4O4C and Al2OC Formed in Carbon-containing refractories with Al[J].Ceram Soc Japan,1996,104,3:393-398.
[6] Heyrman M;Chatillon C .Thermodynamics of the Al-C-O ternary system I. Second and third law critical analysis of oxycarbide enthalpies from vapor pressure determinations[J].Journal of the Electrochemical Society,2006(7):E119-E130.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%