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铝粉及助烧剂添加量对刚玉-Sialon-TiN抗热震性能的影响
  • ISSN号：1002-185X
  • 期刊名称：《稀有金属材料与工程》
  • 时间：0
  • 分类：TQ175[化学工程—硅酸盐工业]
  • 作者机构：中国地质大学(北京)非金属矿物和固废资源材料化利用北京市重点实验室矿物材料国家专业实验室
  • 相关基金：国家自然科学基金(51032007,51372232,51472222);武汉科技大学省部共建耐火材料与冶金国家重点实验室开放基金
作者： 朱凌, 黄朝晖, 刘艳改, 房明浩, 吴小文
关键词： 铝粉, 助烧剂, 刚玉-Sialon-Ti, N, 抗热震性, 抗折强度
中文摘要：

以金红石、石英和铝粉为主要原料,在1500℃下经过4 h还原氮化一步制备出刚玉-Sialon-Ti N复相材料。研究了不同Al粉添加量和不同助烧剂添加量下试样的热震稳定性。结果表明:合成的复相材料以刚玉为主体,并有少量六方柱状β-Sialon、颗粒状刚玉和Ti N生成,填充在孔洞和缝隙中;试样经过1次水冷热震后残余抗折强度的变化趋势和热震前试样的抗折强度变化趋势保持一致,都是随着铝粉添加量的增加而增大,且强度保持率都高于67%,添加过量10%铝粉的试样有最大强度保持率88.83%;未加助烧剂试样的抗折强度为32.55 MPa,加入Y2O3和La2O3作为助烧剂后,试样的抗折强度最大可达到58.67 MPa,抗折强度显著增大,热震稳定性相对提高。添加2.5%（Y2O3+La2O3）的试样具有相对更优的抗热震性能。

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期刊信息
  • 《稀有金属材料与工程》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会 中国材料研究学会 西北有色金属研究院
  • 主编：张平祥
  • 地址：西安市51号信箱
  • 邮编：710016
  • 邮箱：RMME@c-nin.com
  • 电话：029-86231117
  • 国际标准刊号：ISSN：1002-185X
  • 国内统一刊号：ISSN：61-1154/TG
  • 邮发代号:52-172
  • 获奖情况:
  • 首届国家期刊奖,中国优秀期刊一等奖,中国有色金属工业优秀期刊1等奖
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  • 被引量:24715