赵益诚,陈贺,晁明举

• 1:郑州大学物理工程学院材料物理教育部重点实验室
• 2:郑州外国语新枫杨学校

摘要(Abstract)：

采用固相法制备Al/Y_2W_3O_(12)复合材料,研究了Al与Y_2W_3O_(12)以不同质量比合成样品的特性。X射线衍射表明:样品只含有Al和Y_2W_3O_(12),不存在Al对Y的取代。SEM和EDS分析表明:小颗粒Y_2W_3O_(12)嵌入在块状Al基底中,为嵌入式复合结构。热膨胀性能和电导率测试分析表明:当Al与Y_2W_3O_(12)的质量比7∶3时,Al/Y_2W_3O_(12)样品的线膨胀系数14.76×10-6/K(RT~600℃)约为Al的一半,呈现良好的导电性,其导电率为18.2 S/m可达Al的电导率的1/2,且Al/Y_2W_3O_(12)样品几乎不表现出吸水性。研究认为,该复合材料具有低膨胀和较高导电性是由于其特有的嵌入式结构所致。

关键词(KeyWords)： 负热膨胀;Al/Y2W3O12复合材料;膨胀系数;电导率

Abstract:

Keywords:

基金项目(Foundation): 河南省科技攻关重点项目:可控热膨胀金属陶瓷材料制备技术研究(142102210073)

作者(Author): 赵益诚,陈贺,晁明举

DOI: 10.13681/j.cnki.cn41-1282/tv.2016.03.016

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