引用本文:赵文明,王 俊,翟长生,孙宝德.纳米复合涂层ZrO2/0.05w(Al2O3)力学性能的Weibull分布特性[J].中国表面工程,2005,(4):13~17
.The Weibull Distribution of Microhardness and Microstructure of ZrO2/0.5w( Al2O3) Plasma Sprayed Coatings[J].China Surface Engineering,2005,(4):13~17
【打印本页】   【HTML】   【下载PDF全文】   【查看/发表评论】  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被：浏览 3469次   下载 3186次 本文二维码信息
码上扫一扫！
分享到： 微信 更多
字体:加大+|默认|缩小-
纳米复合涂层ZrO2/0.05w(Al2O3)力学性能的Weibull分布特性
赵文明，王 俊，翟长生，孙宝德
作者单位
摘要:
采用等离子喷涂方法制备了掺杂纳米Al2O3的ZrO2纳米陶瓷复合涂层（NCC）。并参照ZrO2传统涂层（MCC），探究了涂层显微硬度与微观组织结构的关系。试验数据显示，纳米复合陶瓷涂层表面与断面的平均显微硬度值均明显高于传统涂层；两者的Weibull分布均呈各向异性和分散性，但纳米复合陶瓷材料的分布较集中。通过TEM分析进一步表明，纳米复合涂层组织的明显细化、纳米Al2O3颗粒在ZrO2涂层中的弥散分布、微裂纹（微孔）韧化、晶内／晶间强化是NCC具有优异的力学性能的主要原因。
关键词:  等离子喷涂  微观组织  显微硬度  Weibull分布
DOI：
分类号:
基金项目:
The Weibull Distribution of Microhardness and Microstructure of ZrO2/0.5w( Al2O3) Plasma Sprayed Coatings
ZHAO Wen-ming , WANG Jun, ZHAI Chang-sheng, SUN Bao-de
Abstract:
Both the microstructure and microhardness of the plasma sprayed ZrO2 and ZrO2/0.05w(Al2O3) nanocomposite coatings were carefully investigated. The mean hardness of NCC was much higher than that of MCC. The weibull distribution of both coatings exihibited apparently anisotropic and dispersible,but NCC’s was quite concentrative. According to TEM analysis, it can be considered that the grain refinement, toughening of microcracks (microspores), toughening of intergranular/transgranular mixed structures and the dispersive refinement of Al2O3 nanoparticles on ZrO2 matrix are main mechanisms to improve the mechanical properties of NCC.
Key words:  plasma sprayed coating  microstructure  microhardness  Weibull distribution
手机扫一扫看