Ti-B-C composite coating produced by electrothermally exploded powder-spray technique |
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| Authors: | Fumihiro Kikkawa Hideki Tamura Ken-ich Kondo |
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| Affiliation: | (1) Tokyo Institute of Technology, Yokohama, Japan;(2) National Defense Academy, Yokosuka, Japan |
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| Abstract: | Composite coatings of a Ti-B-C system were reactively produced by the electrothermally exploded powderspray (ELTEPS) technique.
First, the electrical characteristics of the ELTEPS system were determined. The starting powder of the coatings was titanium
powder mixed with boron carbide powder. This powder was prepared for production of Ti-B-C composite coatings on substrates
using the ELTEPS technique. The coatings obtained were composed of titanium carbide and titanium diboride. The thickness of
the coating obtained by onefold spray was not uniform. The coating obtained by the twofold spray covered the substrate. The
coating obtained by threefold spray was still more precise. The thickness of the coating obtained by threefold spray was about
50 μm and its hardness value was about 30.7±4.5 GPa. |
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| Keywords: | composite materials electrothermal explosion technique nanocrystalline composites |
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