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...

Full description

Saved in:
Bibliographic Details
Published in7th Korea-Russia International Symposium on Science and Technology, Proceedings KORUS 2003. (IEEE Cat. No.03EX737) Vol. 1; pp. 47 - 50 vol.1
Main Authors Dudina, D.V., Lomovsky, O.I., Korchagin, M.A., Young-Soon Kwon
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Copper
Current
Microstructure
Plasma temperature
Powders
Scanning electron microscopy
Skeleton
Sparks
Titanium
Transmission electron microscopy
Online AccessGet full text

Cover

More Information
Summary: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.
ISBN:8978686176
9788978686174