Microstructure Formation Properties of ZrO2 Coating by Powder, Suspension and Liquid Precursor Plasma Spraying

被引：7
|
作者：
Gulyaev, Igor [1 ,2 ]
Kuzmin, Viktor [1 ,3 ]
Kornienko, Elena [4 ]
Vashchenko, Sergey [1 ]
Sergachev, Dmitry [1 ]
机构：
[1] RAS, Inst Theoret & Appl Mech SB, 4-1 Inst Skaya St, Novosibirsk 630090, Russia
[2] Ugra State Univ, 16 Chekhov Str, Khanty Mansiysk 628012, Russia
[3] Siberian State Univ Water Transport, 33 Schetinkina, Novosibirsk 630099, Russia
[4] Novosibirsk State Tech Univ, 20 K Marksa Pr, Novosibirsk 630073, Russia
来源：
MATERIALS TODAY-PROCEEDINGS | 2019年 / 11卷
关键词：
zirconia; YSZ; thermal barrier coatings; TBC; plasma spray; APS; SPS; LPPS; powder; suspension; precursor; structure; porosity;
D O I：
10.1016/j.matpr.2019.01.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The research provides a brief analysis of the requirements for the plasma sprayed zirconia for obtaining thermal barrier coatings and solid oxide electrochemical devices. We present the results of depositing 7-8% YSZ coatings by powder spraying (APS) in the regimes of low and high velocity plasma flow as well as the results of liquid materials plasma spraying, namely of suspension and precursor solution (SPS and LPPS). The studies of the coatings microstructure are executed by analyzing SEM images. APS powder coatings are characterized by high porosity of 20-30% with coarse microstructure, LPPS coating has a porosity of 12% and columnar structure, and the SPS coating has a low porosity of 1.4 % and a gas-tight structure. (C) 2019 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Modern Trends in Manufacturing Technologies and Equipment 2018: Materials Science.
引用
收藏
页码：430 / 435
页数：6
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