【作者】 贾虎生； 刘欣； 李咏梅； 刘旭光； 许并社；

【Author】 JIA Hu-sheng LIU Xin LI Yong-mei LIU Xu-guang XU Bing-she (College of Materials Science and Engineering,Taiyuan Eniversity of Technology,Taiyuan 030024,China)

【机构】 太原理工大学材料科学与工程学院；

【摘要】 用共沉淀—水热法制备 Ni/ZrO₂/Al₂O₃复相陶瓷粉体,并对烧结体的力学性能和显微形貌进行了讨论。复相粉体的表征采用高分辩透射电镜（HRTEM）和 X 射线衍射（XRD）等技术。结果表明：在1．4-丁二醇介质中300℃水热条件下自生压高压釜中反应12h 成功制备了 Ni/ZrO₂/Al₂O₃复合陶瓷粉体,并且测得复相陶瓷体积密度和断裂韧性。通过场发射扫描电镜观察得到烧结体中 t-ZrO₂颗粒和 Ni 颗粒的平均尺寸。更多还原

【Abstract】 Ni/ZrO₂/Al₂O₃ composite ceramic powder was produced by combining hydrotherrnal processing with co-precipitation,the mechanical property and the microphotograph of the sintered body was discussed.The composite ceramic powder was characterized using high-resolution transmission electron microscope（HRTEM）and X-ray diffractometer（XRD）.The results indicated that Ni/ZrO₂/Al₂O₃ composite ceramic powder had been prepared at 300℃ under autogenous of 1,4-butanediol solution for 12h,the volume density and the fracture toughness of composite were measured.The sizes of t-ZrO₂ and Ni particles about the sintered body were observed by field scanning electron microscopy（FESEM）.更多还原