Effect of Heat Treatment on LaTi2Al9O19-Zr0.92Y0.08O1.96 Com-posite Coating Powders by Air Plasma Spraying

被引：0

作者：

Yang, Zesheng ^{[1
]}

Zong, Pengan ^{[1
,2
]}

Huang, Muzhang ^{[1
]}

Han, Yi ^{[1
]}

Zhou, Huajian ^{[1
]}

Feng, Yingjie ^{[1
,2
]}

Zhang, Peng ^{[1
]}

Wan, Chunlei ^{[1
]}

机构：

[1] State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing,100084, China

[2] College of Materials Science and Engineering, Nanjing Tech University, Nanjing,211816, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2022年 / 51卷 / 05期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Alumina - Aluminum oxide - Calcination - Compressive strength - Lamellar structures - Lanthanum compounds - Morphology - Plasma spraying - Powders - Sol-gel process - Sol-gels - Spray drying - Yttria stabilized zirconia - Yttrium oxide;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The nano/submicron scaled spraying powders of lanthanum titanium aluminum oxide LaTi2Al9O19 (LTA) toughened by yttria stabilized zirconia Zr0.92Y0.08O1.96 (YSZ) were prepared via spray drying and then calcined at different temperatures. The effect of heat treatment on the flowability, apparent density, and morphology of the spray-dried powders was investigated. Results show that the spray-dried powders have loose structure with the size of 40~80 μm. The cohesion between LTA-YSZ particles becomes stronger after calcination. The spray-dried powders calcined at 1100℃ achieve the optimal spraying characteristics and morphology, and therefore are deposited via air plasma spraying (APS) to obtain LTA-YSZ coatings which show a good lamellar structure with defects. Copyright © 2022, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved.

引用

页码：1601 / 1605