Preparation and Thermal Shock Performance of Solution Precursor Plasma Spraying La2Ce2O7 Thermal Barrier [溶液前驱体等离子喷涂铈酸镧热障涂层的制备及热震性能] - 文章详情页

作者：

Wang, Y. (Wang, Y..) | Feng, B. (Feng, B..) | Jia, Q. (Jia, Q..) | Suo, H. (Suo, H..) | Ma, L. (Ma, L..)

收录：

Scopus PKU CSCD

摘要：

To　solve　the　problem　of　low　temperature　in　current　aero-turbine　engines,　La2Ce2O7　(LCO)　thermal　barrier　coating　was　prepared　by　using　solution　precursor　plasma　spray　(SPPS)　with　new　thermal　barrier　coating　materials,　and　the　influence　of　spraying　distance,　atomized　air　pressure　and　precursor　concentration　in　SPPS　technology　on　the　microstructure　and　performance　of　LCO　thermal　barrier　coating　was　analyzed.　Results　show　that　when　the　spraying　distance　reaches　35mm,　the　pressure　of　atomized　gas　is　100　kPa,　and　the　precursor　concentration　is　0.4　mol/L,　the　melting　state　of　the　coating　is　better,　with　compact　structure,　uniform　pore　distribution　and　obvious　vertical　crack　structure.　The　thermal　cycle　life　of　LCO　coating　prepared　by　SPPS　method　reaches　60　times.　The　improvement　is　due　to　the　segmentation　cracks　in　the　coatings　that　improve　the　strain　tolerance　and　effectively　relieve　the　internal　stress.　©　2019,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

关键词：

La2Ce2O7(LCO); Solution precursor plasma spray (SPPS); Strain tolerance; Thermal barrier coatings; Thermal cycle life; Vertical crack

作者机构：

[ 1 ] [Wang, Y.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Feng, B.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Jia, Q.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Suo, H.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Ma, L.]College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China

通讯作者信息：

电子邮件地址：

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至