Plasma spraying of alumina: Plasma and particle flow fields

Autor:	W.D. Swank, D.C. Haggard, J.R. Fincke
Rok vydání:	1993
Předmět:	Number density Chemistry General Chemical Engineering Analytical chemistry General Chemistry Plasma Condensed Matter Physics Laser Surfaces Coatings and Films law.invention law Thermal Particle Plasma diagnostics Particle size Pyrometer
Zdroj:	Plasma Chemistry and Plasma Processing. 13:579-600
ISSN:	1572-8986 0272-4324
DOI:	10.1007/bf01570132
Popis:	A comprehensive experimental examination of the interaction between a subsonic thermal plasma jet and injected alumine, particles is presented. Measurements of plasma velocity, temperature, and entrained air were obtained from an enthalpy probe and mass spectrometer combination. A diffusive separation, or demixing, of the Ar and He plasma gas was observed. Centerline plasma velocities and temperatures ranged from 1501500 m/s and 2000 to 14,000 K, respectively, in the region between the torch and a typical substrate location of 90 mm. Measurements of particle size, velocity, tempearture and local number density were obtained from a combination laser particle sizing system, Laser doppler velocimeter (LDV), and two-color pyrometer. Centerline temperatures and velocities for the nominally 30 μm particles used were 2400–2800 K and 150–200 m/s, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32e9bc4face6ea20ac941a1791c5c11e https://doi.org/10.1007/bf01570132 Zobrazit plný text záznamu Full text from SpringerLink