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原位合成AlN及添加钇的复合AlN粉体
Authors
周美玲
林志浪
王群
郑新和
Publication date
1 January 2001
Publisher
Abstract
以Al-Mg和Al-Mg-Y合金为原料,通入高纯度的氮气,利用原位合成法制备了AlN粉体及含烧结助剂的复合AIN粉体。合金氮化产物的组织排列疏松,有利于粉化。粉化后的AlN粉体纯度较高,含氧量为1.23%,平均粒径为6.78μm, 物相为单相AIN;复合AIN粉体物相组成为AIN主相与稀土钇的氧化物烧结助剂Y2O3相。粒径分布曲线呈双峰现象,从提高粉体的充填系数角度考虑,具有这种粒径分布的粉体有利于烧结致密化
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Last time updated on 29/11/2016