TiB/sub 2/-Cu interpenetrating phase composites produced by spark-plasma sintering
Interpenetrating phase composites of TiB/sub 2/-Cu system were produced via spark-plasma sintering (SPS) of nanocomposite powders. Under simultaneous action of pressure, temperature and electric current the titanium diboride nanoparticles distributed in copper matrix move, agglomerate and form a fin...
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Published in | 7th Korea-Russia International Symposium on Science and Technology, Proceedings KORUS 2003. (IEEE Cat. No.03EX737) Vol. 1; pp. 47 - 50 vol.1 |
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Format | Conference Proceeding |
Language | English |
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IEEE
2003
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Abstract | Interpenetrating phase composites of TiB/sub 2/-Cu system were produced via spark-plasma sintering (SPS) of nanocomposite powders. Under simultaneous action of pressure, temperature and electric current the titanium diboride nanoparticles distributed in copper matrix move, agglomerate and form a fine-grained skeleton. Increasing SPS-temperature and holding time promote densification due to local melting of copper matrix. When copper melting is avoided, the compacts contain 17-20% porosity but the titanium diboride skeleton is still formed representing the feature of SPS. High degree of densification and formation of titanium diboride network results in increased hardness of high-temperature SPS-compacts. |
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AbstractList | Interpenetrating phase composites of TiB/sub 2/-Cu system were produced via spark-plasma sintering (SPS) of nanocomposite powders. Under simultaneous action of pressure, temperature and electric current the titanium diboride nanoparticles distributed in copper matrix move, agglomerate and form a fine-grained skeleton. Increasing SPS-temperature and holding time promote densification due to local melting of copper matrix. When copper melting is avoided, the compacts contain 17-20% porosity but the titanium diboride skeleton is still formed representing the feature of SPS. High degree of densification and formation of titanium diboride network results in increased hardness of high-temperature SPS-compacts. |
Author | Lomovsky, O.I. Dudina, D.V. Young-Soon Kwon Korchagin, M.A. |
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PublicationTitle | 7th Korea-Russia International Symposium on Science and Technology, Proceedings KORUS 2003. (IEEE Cat. No.03EX737) |
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Snippet | Interpenetrating phase composites of TiB/sub 2/-Cu system were produced via spark-plasma sintering (SPS) of nanocomposite powders. Under simultaneous action of... |
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StartPage | 47 |
SubjectTerms | Copper Current Microstructure Plasma temperature Powders Scanning electron microscopy Skeleton Sparks Titanium Transmission electron microscopy |
Title | TiB/sub 2/-Cu interpenetrating phase composites produced by spark-plasma sintering |
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