以Li2CO3、Nb2O5、K2CO3为初始原料,采用Pechini法制备了铌酸锂(LiNbO3)陶瓷.用XRD、SEM等分析了LiNbO3陶瓷的结晶特性.分析结果表明Li2O对于铌酸锂陶瓷的烧结及致密度有着重要的影响,经980℃烧结得到的LiNbO3陶瓷晶粒发育良好,当烧结温度＞1100℃时,Li2O有较大的损失,所得到的LiNbO3陶瓷组分与化学计量此有一定偏差.因此应采用多种技术方法来减少Li2O的损失以得到致密、结晶性良好的铌酸锂陶瓷.
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