采用固相合成法制备了6.3％Sc2O3-1.3％Y2O3-92.4％ZrO2(摩尔分数)陶瓷材料.分别利用X射线衍射、示差扫描量热法、高温热膨胀仪和激光导热法对陶瓷材料的物相组成、高温相稳定性、热膨胀系数和热扩散等性能进行了表征.结果表明,经1600℃烧结6h,该陶瓷材料由单一的立方相结构组成,具有良好的高温相稳定性,热导率低于传统的6～8YSZ,是一种良好的热障涂层候选材料.
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