期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 38, 期 15, 页码 5092-5100出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2018.07.013
关键词
Sintering; Plasma-spraying; Thermal barrier coatings; Mechanical properties
资金
- NSFC [1171101165, 11472204]
- China Scholarship Council (CSC)
Sintering is one of the key issues in the high temperature service of thermal barrier coatings (TBCs), considering the continuously increasing operation temperature of gas-turbine for higher energy efficiency. Based on the conventional processing method of air plasma spraying (APS), suspension plasma spraying (SPS) technique has been developed recently, in order to improve the strain tolerance of TBCs. This strain tolerance of plasma sprayed TBCs is largely effected by the sintering behavior, which is presently not fully understood. In this work, evolution of mechanical properties, in terms of Young's modulus and viscosity, is systematically investigated by in-situ three-point bending test at 1200 degrees C on free-standing coatings, including micro-cracked APS, segmented APS, vertically cracked SPS and columnar structured SPS TBCs and correlated to the microstructural evolution. Based on experimental results, power law relations are proposed for the sintering induced mechanical evolution, which deepen the understanding of the sintering behavior of plasma-sprayed TBCs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据