Splat morphology of yttria-stabilized zirconia droplet deposited via hybrid plasma spraying

Kentaro Shinoda*, Hideyuki Murakami

*この研究の対応する著者

研究成果: Article査読

29 被引用数 (Scopus)

抄録

The splat morphology of yttria-stabilized zirconia (YSZ) droplets deposited by dc-rf hybrid plasma spraying (HYPS) was studied. Two types of YSZ powder were used, namely fused and crushed powder (FC) and hollow spherical powder (HOSP). The three-dimensional shape of more than 600 disk-shaped splats on preheated substrates was evaluated using a laser-scanning microscope to determine the splat diameter, thickness, and their dimensionless forms. The HOSP showed a higher degree of flattening than the FC. Both the FC with a powder size distribution of 45-75 μm and the HOSP of 30-120 μm can be used as spray materials in the HYPS to achieve a coating design based on fully molten particles. The effect of the substrate temperature on the splat morphology was similar to that of atmospheric dc plasma spraying; however, the transition from a splashed shape to a disk shape gradually occurred at higher substrate temperatures.

本文言語English
ページ(範囲)602-610
ページ数9
ジャーナルJournal of Thermal Spray Technology
19
3
DOI
出版ステータスPublished - 2010 3 1
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 材料化学

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