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放电等离子烧结制备氧化锆陶瓷及其力学性能
引用本文:自伟,林元华,卫彦,马琦,邓旭亮.放电等离子烧结制备氧化锆陶瓷及其力学性能[J].稀有金属材料与工程,2011(Z1):492-495.
作者姓名:自伟  林元华  卫彦  马琦  邓旭亮
作者单位:北京大学;清华大学;
基金项目:国家高技术研究发展计划(2009AA03Z422)
摘    要:以日本Tosoh纳米氧化锆粉体为原料,采用放电等离子烧结(SPS)技术及无压烧结技术制备了氧化锆纳米陶瓷。运用TEM﹑SEM﹑XRD等对粉体和块体进行分析,比较无压烧结及不同SPS烧结温度的样品显微结构及力学性能。结果表明:在试验范围内SPS烧结样品力学性能随烧结温度升高而升高,抗弯曲强度在1500℃时达到1483MPa,可切削性低于无压烧结组。利用放电等离子烧结技术可以明显提高ZrO2的力学性能,但并不能改善其可切削性能。

关 键 词:放电等离子烧结  ZrO2  力学性能  可切削性

Preparation of Zirconia Ceramics by Spark Plasma Sintering Technique and Their Mechanical Properties
Zi Wei ,Lin Yuanhua,Wei Yan ,Ma Qi ,Deng Xuliang.Preparation of Zirconia Ceramics by Spark Plasma Sintering Technique and Their Mechanical Properties[J].Rare Metal Materials and Engineering,2011(Z1):492-495.
Authors:Zi Wei    Lin Yuanhua  Wei Yan  Ma Qi  Deng Xuliang
Affiliation:Zi Wei 1,2,Lin Yuanhua2,Wei Yan 1,Ma Qi 1,Deng Xuliang 1 (1. Peking University,Beijing 100081,China) (2. Tsinghua University,Beijing 100084,China)
Abstract:Using nano-sized zirconia powder (Tosoh, Japan) as raw material, nano-zirconia ceramics were prepared by spark plasma sintering (SPS) process and pressureless sintering method. Properties of the powder and bulks were investigated by XRD, SEM and TEM to compare microstructure and mechanical property differences between the samples prepared by different sintering methods. It is found that at the experiment limits, mechanical properties are improved with the increasing temperature by SPS process and the bendin...
Keywords:spark plasma sintering  ZrO2  mechanical property  machinability  
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