[en] The size and shape of individual particles are essential characteristics to control their behavior during spraying.
Thanks to recently available technology in powder image analysis, this paper investigates the correlation between the geometric properties of several thousands of particles and their flowability (Hall flowmeter) and apparent density (Scott volumeter). Four different chromium carbide Cr3C2-NiCr 75/25 powders used for HVOF wear / oxidation resistant coatings are studied. The coating quality obtained for each powder by the HVOF spraying process is further investigated using metallographic image analysis.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Pirard, Eric ; Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Géoressources minérales & Imagerie géologique
Campana, Florent
Janssen, Jean-Pierre
Language :
English
Title :
Advanced particle characterization for improved; understanding of spray coating quality
Publication date :
2006
Event name :
International Thermal Spray Conference
Event organizer :
ASM
Event place :
Seattle, United States
Audience :
International
Main work title :
Proceedings International Thermal Spray Conference
