Ruby-Laser Scattering Diagnostics of a Supersonic Plasma Flow for Low-Pressure Plasma Spraying

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Copyright (c) 1987 The Japan Society of Applied Physics
, , Citation Ryouta Hidaka et al 1987 Jpn. J. Appl. Phys. 26 L1724 DOI 10.1143/JJAP.26.L1724

1347-4065/26/10A/L1724

Abstract

Truly reliable measurements of electron temperature and density in a plasma flow for low-pressure plasma spraying (LPPS) were performed for the first time, using incoherent Thomson scattering of ruby-laser light. The results indicate the characteristic feature of a supersonic nozzle flow, namely, successive appearance of oblique shock-wave heating (∼1 eV) and compression (4×1021 m-3), and subsequent cooling (∼0.2 eV) and rarefaction (1×1021 m-3).

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10.1143/JJAP.26.L1724