OALib Journal期刊
注凝成型制备ZTA复相陶瓷
, PP. 125-129
Keywords: 复相陶瓷 ,注凝成型 ,粘度 ,力学性能 ,显微结构
Abstract:
讨论了pH值、分散剂添加量、ZrO2(3Y)含量和固相体积分数对氧化锆增韧氧化铝(Zirconiatoughenedalumina,ZTA)陶瓷注凝成型浆料粘度的影响,研究了注凝成型的烧结样品的性能和显微结构。结果表明,当pH值为8.5、分散剂添加量为0.9%时,可以制备固相体积分数达55%的低粘度ZTA(20%ZrO2)悬浮体。高固相悬浮体制备的烧结试样具有结构致密、ZrO2分布较均匀和t-ZrO2含量高等特征,其强度和断裂韧性分别达631.5MPa和7.64MPa·m1/2。
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