金刚石微粉增强PSZ陶瓷的研究  

A Study on the PSZ Ceramics Reinforced by Diamond Microgrits Addition

作　　者：周振君[1] 关长斌[1] 王柏玉 高云鹏 

机构地区：[1]燕山大学材料工程学院,066004 [2]黑龙江建筑材料科学研究所 [3]秦皇岛市燕山玻璃厂

出　　处：《金刚石与磨料磨具工程》1997年第3期2-4,共3页Diamond & Abrasives Engineering

摘　　要：采用常规热压（32MPa）制备出了金刚石增强PSZ陶瓷。对该陶瓷的断裂韧性、抗弯强度、密度、热膨胀和热导率做了初步的研究。实验表明，添加金刚石微粉，有利于提高PSZ陶瓷的断裂韧性．降低其热膨胀系数和提高其导热率。PSZ-diamond composites have been developed by normal hot-pressing procedures under conventional pressure of 32MPa and 1250℃. The fracture toughness, tensilestrength, density, thermal expansion coefficient and thermal conductivity of these compositeshave been characterized. The result shows that the fracture toughness (K(1e)) increase with the addition of diamond microgrits, and diamond addition tends to decrease the thermal expansion coefficient and increase the thermal conductivity of these composites. The composite properties are dependent on the volume fraction of diamond microgrits.

关 键 词：金刚石 断裂韧性 热膨胀 PSZ陶瓷 导热率 

分 类 号：TQ174.158[化学工程—陶瓷工业] TQ163[化学工程—硅酸盐工业]