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放電プラズマ焼結法による炭化反応を利用したチタンのTiC被覆

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J. Jpn. Inst. Light Met. 62(6)_ 233-236 (2012).pdf3.1 MBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/75323

Title: 放電プラズマ焼結法による炭化反応を利用したチタンのTiC被覆
Other Titles: TiC coating on titanium by carbonization reaction using spark plasma sintering
Authors: 林, 知宏1 Browse this author
松浦, 清隆2 Browse this author →KAKEN DB
大野, 宗一3 Browse this author →KAKEN DB
Authors(alt): Hayashi, Tomohiro1
Matsuura, Kiyotaka2
Ohno, Munekazu3
Keywords: titanium
TiC
surface modification
SPS
Issue Date: 30-Jun-2012
Publisher: 軽金属学会
Journal Title: 軽金属
Journal Title(alt): Journal of Japan Institute of Light Metals
Volume: 62
Issue: 6
Start Page: 233
End Page: 236
Publisher DOI: 10.2464/jilm.62.233
Abstract: Hard TiC coating layer is formed on commercially pure titanium by heat treatment in a Spark Plasma Sintering (SPS) mold filled with graphite powder. The thickness of the TiC coating layer is about 10 μm in case of heat treatment for 3600 s at 1243 K and the thickness of this layer is almost uniform. This coating consists of TiC and graphite, and titanium oxide is not detected by X-ray diffractometer (XRD). Vickers hardness test revealed that the hardness of TiC coating was 1600 HV, which was much higher than that of titanium substrate (130 HV). The hard TiC coating on titanium is considered to have advantage in the applications to load-bearing parts of hard tissue replacements. The growth behavior of TiC is conformed to be parabolic, and the activation energy of growth of TiC is 218.6 kJ/mol. This value is close to the activation energy of carbon diffusion in TiC. Therefore, the rate of growth of TiC is controlled by carbon diffusion in TiC phase.
Type: article
URI: http://hdl.handle.net/2115/75323
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大野 宗一

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