Radiographic Characterization of Thermal Spray Jets Produced by Electrothermal Explosion of Ceramic Powders
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概要
- 論文の詳細を見る
Thermal spray jets composed of Zr–B–O molten particles produced by the electrothermal explosion of a mixed powder of Zr and B2O3 were quantitatively characterized of their velocity, volumetric mass density, and mass velocity by flash radiography, to investigate a unique characteristic of a coating formed by using such jets, i.e., the mixing of a substrate material with a coating. Yttria-stabilized zirconia balls were used as tracers of jet flow. Mass velocity, i.e., mass flow rate per unit cross section of the flow, in a cylindrical space in front of the virtual position of a substrate was calculated using the velocity of the tracers and the volumetric mass density of the jet. The maximum mass velocity in the present spraying was two orders of magnitude larger than that in conventional plasma spraying. Thus, the very high mass velocity probably contributes to the appearance of the unique characteristic.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-01-15
著者
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Tamura Hideki
Department Of Anesthesia Hiroshima Red Cross & Atomic Bomb Survivors Hospital
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Kondo Ken-ichi
Materials And Structures Laboratory Tokyo Institute Of Technology
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Kondo Ken-ichi
Materials and Structures Laboratory, Tokyo Institute of Technology, R3-9, 4259 Nagatsuta, Midori, Yokohama 226-8503, Japan
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Tamura Hideki
Department of Applied Physics, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka 239-8686, Japan
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Mizusako Fumiki
Materials and Structures Laboratory, Tokyo Institute of Technology, R3-9, 4259 Nagatsuta, Midori, Yokohama 226-8503, Japan
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