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以超重力熔铸新技术制备Al_2O_3陶瓷材料 被引量:3

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摘要 通过对燃烧合成技术与超重力技术的集成,发展了一种完全不同于粉末烧结技术的Al2O3陶瓷的非平衡制备新技术;首先通过超重力场中的燃烧合成反应产生了由陶瓷-金属熔体组成的超高温混合熔体,随后在超重力场中利用金属、陶瓷、气孔三相的密度差实现其快速、彻底的分离.在超重力系数G≥200的超重力场中所制备的陶瓷块体的相组成为单相α-Al2O3;随着超重力系数G的增加Al2O3陶瓷的密度增大,最大密度达到3.89g/cm3;所制备的多晶Al2O3陶瓷中晶粒的(hk0)晶面沿所施加的超重力场方向表现出明显的织构化特征.
出处 《自然科学进展》 北大核心 2009年第4期462-466,共5页
基金 国家"八六三"计划(批准号:2006AA03Z112) 国家自然科学基金(批准号:50772116)资助项目
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同被引文献43

  • 1麦培林,郭世斌,刘光华,陈义祥,李江涛,贺淑莉.超重力场辅助燃烧合成技术快速制备Fe_3Al合金[J].稀有金属材料与工程,2012,41(S2):85-89. 被引量:1
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