Measurement of particle size, velocity and temperature in the plasma spray coating process

Content Provider	United States Department of Energy Office of Scientific and Technical Information (OSTI.GOV)
Author	Fincke, J. R. Swank, W. D.
Organization	EG and G Idaho, Inc., Idaho Falls, ID (USA)
Abstract	The quality and uniformity of coatings fabricated by the plasma spray process is controlled by the condition of the particles on impact. In this work a measurement technique for simultaneously obtaining particle size, velocity, and temperature is used to characterize the particle spray field. Particle size and velocity are obtained from a combination laser particle sizing system and laser Doppler velocimeter (LDV). The particle temperature is determined by a two-color pyrometer technique and the relative particle number density is derived from the data rate. The fraction of unheated or unprocessed particles which result from temperature and velocity fluctuations is also obtained. This fraction can approach 10% by mass of the total particle flow. 17 refs., 10 figs.
Sponsorship	USDOE;USDOE, Washington, DC (USA)
Related Links	https://www.osti.gov/biblio/6073601
Page Count	13
File Format	PDF
Language	English
Publisher Date	1991-01-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	MATERIALS SCIENCE ALUMINIUM PLASMA ARC SPRAYING NICKEL PARTICLE SIZE MEASURING METHODS VELOCITY POWDERS SPRAY COATING DEPOSITION ELEMENTS METALS SIZE SURFACE COATING TRANSITION ELEMENTS Metals & Alloys Preparation & Fabrication
Content Type	Text
Resource Type	Article