| 热障涂层用高熔点多元钙钛矿的大气等离子喷涂 |
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| 引用本文： | M.O. Jarligo,D.E. Mack,G. Mauer,R. Vaβen,D. St.热障涂层用高熔点多元钙钛矿的大气等离子喷涂[J].热喷涂技术,2010,2(2):50-58. |
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| 作者姓名： | M.O. Jarligo D.E. Mack G. Mauer R. Vaβen D. St |
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| 作者单位： | Institut für Energieforschung (IEF-1);Forschungszentrum Jülich GmbH;Jülich;Germany; |
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| 摘 要： | 高熔点材料作为热障涂层材料,已成为备受关注的发展趋势。在高熔点材料中,人们开发了由Ba(Mg1/3Ta2/3)O3和La(Al1/4Mg1/2T1/4)O3组成的多元钙钛矿合成物,并采用大气等离子喷涂方法将其沉积在热障涂层体系中。本文对喷涂参数进行了优化,并记录了飞行粒子温度。对涂层的相组成、稳定性、形貌和孔隙率进行了检测,同时对热障涂层体系在高温的热循环寿命进行了研究。研究表明,起始物料的性能在大气等离子体喷涂中具有决定性的作用,并最终影响热障涂层的寿命。由粒子分析而得到的过程图表明了适宜的喷涂条件,这一喷涂条件可在钙钛矿的等离子喷涂过程中尽可能避免第二相的产生。
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| 关 键 词： | 多元钙钛矿合成物 大气等离子喷涂 |
Atmospheric Plasma Spraying of High Melting Temperature Complex Perovskites for TBC Application |
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| Affiliation: | M.O.Jarligo,D.E.Mack,G.Mauer,R.Vaβen,D.Stver (Institut für Energieforschung (IEF-1),Forschungszentrum Jülich GmbH,Jülich,Germany) |
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| Abstract: | High melting materials have always been very attractive candidates for materials development in thermal barrier coating (TBC) applications.Among these materials,complex perovskites with Ba(Mg1/3Ta2/3)O3 and La(Al1/4Mg1/2T1/4)O3 compositions have been developed and deposited in TBC systems by atmospheric plasma spraying.Spray parameters were optimized and in-flight particle temperatures were also recorded.Deposited coatings were characterized in terms of phase composition and stability,morphology and porosit... |
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| Keywords: | Complex Perovskites Atmospheric Plasma Spraying |
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