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OALib Journal期刊
ISSN: 2333-9721
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放电等离子烧结制备透明aln陶瓷
Keywords: 无机非金属材料,透明aln陶瓷,sps技术
Abstract:
？采用放电等离子烧结(sparkplasmasintering,sps)技术,添加不同含量caf2为烧结助剂,成功制备了透明氮化铝(aln)陶瓷.sps技术具有烧结快速,烧结体致密度高的特点,是制备透明aln的有效方法.caf2的加入量的提高,有利于烧结体的致密度和透过率的提高.当caf2加入量为3%(质量分数)时,烧结体致密度不再继续提高,但仍有利于透过率的提高,此时烧结体透过率最高为54.7%.sem、xrd、tem和edx结果表明烧结体具有很高的致密度、纯度,均匀的晶粒形状和尺寸,晶界及三角晶界处观察不到第二相的存在,从而保证了烧结体良好的光学性能.
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