东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (6): 852-855.DOI: -

• 论著 • 上一篇    下一篇

利用粉煤灰反应烧结合成ZrO_2-莫来石复合材料

马北越;厉英;翟玉春;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-06-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家重点基础研究发展计划项目(2007CB613603)

Synthesis of zirconia-mullite composite materials with fly ash as raw material by reaction sintering process

Ma, Bei-Yue (1); Li, Ying (1); Zhai, Yu-Chun (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-06-15 Published:2013-06-20
  • Contact: Ma, B.-Y.
  • About author:-
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摘要： 以粉煤灰、锆英石和氧化铝为原料,通过反应烧结法合成ZrO2-莫来石复合材料.研究了烧结温度对合成材料线收缩率、密度、吸水率、常温耐压强度和抗热震性的影响.采用XRD和SEM表征材料的相组成和显微结构.研究结果表明,在1600℃下烧结4h可以合成常温耐压强度高、烧结性和抗热震性优异的ZrO2-莫来石复合材料;合成材料中ZrO2多以粒状形式存在,平均粒径约为5～10μm,能较均匀地分布于莫来石基质中.

关键词: 复合材料, ZrO2-莫来石, 粉煤灰, 烧结性能, 常温耐压强度, 抗热震性

Abstract: Zirconia-mullite composite materials were synthesized by reaction sintering process, with fly ash, zircon and alumina micro powder as raw materials. The influence of sintering temperature on the linear shrinkage ratio, density, water absorbability, crushing resistance at normal temperature and thermal shock resistance of the synthesized materials were investigated. The phase composition and microstructure of the synthesized materials were characterized by XRD and SEM. The results indicated that the zirconia-mullite composite materials with high crushing resistance, thermal shock resistance and sinterability can be synthesized at 1600°C for 4h. It was found that the zirconia in the synthesized materials is mostly in particle shape with an average grain size about 5~10μm, and the particles are uniformly distributed in the mullite matrix.

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