Wide-velocity range high-energy plasma sprayed yttria-stabilized zirconia thermal barrier coating - Part I: Splashing splat formation and micro-adhesive property

被引：4

作者：

Wang, Y. ^{[1
]}

Bai, Y. ^{[1
]}

Yin, Y. T. ^{[2
]}

Wang, B. ^{[3
]}

Zheng, Q. S. ^{[1
]}

Yu, F. L. ^{[4
]}

Qin, Y. B. ^{[1
]}

Zhang, X. J. ^{[3
]}

Liu, M. ^{[5
]}

Wang, H. D. ^{[5
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] China North Engine Res Inst, Tianjin 300400, Peoples R China

[3] Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Condens, Xian 710049, Peoples R China

[4] Xian Aeronaut Univ, Sch Mat Engn, Xian 710077, Peoples R China

[5] Army Acad Armored Forces, Natl Key Lab Remfg, Beijing 100072, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2024年 / 476卷

基金：

中国国家自然科学基金;

关键词：

Splashing splat; In-flight velocity; Interface; Grains; Micro; -adhesion; MICROSTRUCTURAL EVOLUTION; DROPLETS; BREAKUP; IMPACT; SOLIDIFICATION; DEFORMATION; SIMULATION; SUBSTRATE; STRENGTH;

D O I：

10.1016/j.surfcoat.2023.130280

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Regulation on the disked-shape splat is generally regarded as the traditional way to enhance micro-adhesive properties of the splat/substrate interface. In this paper, a conception of impact-induced splashing splat is proposed in order to improve these micro-adhesive properties. Three contrasting types of splashing splat were studied, utilizing a wide-velocity high-energy plasma spraying method. The experimental results suggested that the needle-shaped splat formed by the impingement of supersonic particles possessed a greater micro-adhesive strength on an metallic substrate, as much as twice that of its subsonic counterpart. The threshold velocity was 572 m/s for supersonic adhesion. In relation to air film formation and interlocking reconstruction, the solidification texture and micro-adhesive at the central and peripheral regions was also investigated. The formation process of splashing splat was divided into three stages: particle deformation, edge fragmentation and impingement. This results will provide guideline for tailoring the high-performance thermal barrier coatings.

引用

页数：14

共 1 条

[1] Wide-velocity range high-energy plasma sprayed yttria-stabilized zirconia thermal barrier coating - Part II: Structural defects and thermal-bonding properties
Wang, Y.
Bai, Y.
Liu, G. H.
Sun, J.
Zheng, Q. S.
Yu, F. L.
Liu, M.
Wang, H. D.
SURFACE & COATINGS TECHNOLOGY, 2024, 476

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