High-speed thermal imaging of yttria-stabilized zirconia droplet impinging on substrate in plasma spraying

Kentaro Shinoda, Hideyuki Murakami, Seiji Kuroda, Sachio Oki, Kohsei Takehara, Takeharu Goji Etoh

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The authors have developed an in situ monitoring system that captures the impacting phenomena of plasma-sprayed particles at 1× 106 framess. The system clearly captured deformation and cooling processes of an yttria-stabilized zirconia droplet of 50 μm in diameter impinging at 170 ms on a smooth quartz glass substrate kept at room temperature. The images show that the liquid sheet jetting out sideways from the droplet detached from the substrate and kept on spreading without disintegration until its maximum extent. While the sheet was spreading, the center region of the flattened droplet cooled down much more rapidly.

Original languageEnglish
Article number194103
JournalApplied Physics Letters
Volume90
Issue number19
DOIs
Publication statusPublished - 2007 May 17
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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