Sintering Behavior of TiC-Fe Based Composite Fabricated by Spark Plasma Sintering Using TiH2 Graphite Powders

Sung Yeal Bae; In Sup Ahn; Ho Jung Cho; Chul Jin Kim; Dong Kyu Park

doi:10.4028/www.scientific.net/MSF.534-536.217

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HomeMaterials Science ForumMaterials Science Forum Vols. 534-536Sintering Behavior of TiC-Fe Based Composite...

Sintering Behavior of TiC-Fe Based Composite Fabricated by Spark Plasma Sintering Using TiH₂ Graphite Powders

Abstract:

TiC particulate reinforced Fe matrix composite compacts with controlled interfacial reaction was processed by spark plasma sintering after mechanical alloying. Milled powders were fabricated for 1-5 hours by spex shaker mill with the ball to powder ratio of 25:2. Metal matrix composites (MMCs) based on the Fe-40%TiC system can be synthesized by spark plasma sintering of the D’AE powders with TiH2-graphite powders under vacuum in the temperature range 1273-1473K for 5-20 min. TiC phase was formed by self combustion reaction with temperature increase. The specimen that was formed by sintering Fe-TiC powders displayed a microstructure of uniformly dispersed TiC grain in a continuous metal matrix. The densifications of the TiC-Fe materials were increased as the heat-treatment holding time increasing. In the same time, relative density and hardness of TiC-Fe sintering materials was increased.

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Materials Science Forum (Volumes 534-536)

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217-220

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https://doi.org/10.4028/www.scientific.net/MSF.534-536.217

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Online since:

January 2007

Authors:

Sung Yeal Bae, In Sup Ahn, Ho Jung Cho, Chul Jin Kim, Dong Kyu Park

Keywords:

Cermet, Fe-TiC Composite, Mechanical Alloying (MA), Spark Plasma Sintering (SPS)

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