Research on the Hot Pressing Parameters of Ti (C,N)/Al sub(2)O sub(3) Nanocomposite Ceramic Die Material and the Material Fabrication

In the present study, Ti (C,N)/Al sub(2)O sub(3) nanocomposite ceramic die material was fabricated through adding nanosize Ti (C,N) powders into micrometer Al sub(2)O sub(3) matrix by vacuum hot-pressing technology. Effects of the hot press sintering process on mechanical property and microstructure...

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Bibliographic Details
Published in:Key engineering materials 2013-10, Vol.589-590, p.594-599
Main Authors: Xiao, Guang Chun, Xu, Chong Hai, Chen, Zhao Qiang, Fang, Bin, Wei, Gao Feng
Format: Article
Language:English
Subjects:
Aluminum oxide
Ceramics
Hot pressing
Microstructure
Nanostructure
Optimization
Sintering (powder metallurgy)
Titanium
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Summary:In the present study, Ti (C,N)/Al sub(2)O sub(3) nanocomposite ceramic die material was fabricated through adding nanosize Ti (C,N) powders into micrometer Al sub(2)O sub(3) matrix by vacuum hot-pressing technology. Effects of the hot press sintering process on mechanical property and microstructure of the nanocomposite ceramic die material were investigated. The optimum hot-pressing technology with the sintering temperature of 1650[degrees]C, time duration of 15min and pressure of 30MPa was achieved. The microstructural morphology of the material was also analyzed. It reveals that the Intergranular/intragranular microstructure and the resulted intergranular/transgranular fracture mode are the main causes for strengthening and toughening in the nanocomposite ceramic die material.
ISSN:1013-9826
DOI:10.4028/www.scientific.net/KEM.589-590.594