Thermal Sprayed Dense Ceramic Coating Cabricated by Using Fine Particle

Thermal sprayed dense ceramic coating fabricated by using fine particle

Kazuto Sato, and Hiroyuki Ibe

Abstract

Plasma sprayed ceramic coatings have been widely used in industries to attain valuable properties, such as high hardness, anti-wear, anti-corrosion, barrier of thermal conduction, controlled friction and so on. In industry, APS ceramic coating using more than 30 mm particles is conventional technology. Recently, denser coatings fabricated by conventional technology have been required by several applications. In our study, it is achieved that denser coatings were fabricated by HVOF, APS and SPS by using fine particle. Those coatings were same level in porosity, however, hardness, XRD pattern and electrical property were different according to the thermal spray process.