Fe-TiC Composite Powders Fabricated by Planetary Ball Mill Processing

Lee, B. H.; Ahn, K. B.; Bae, S. W.; Khoa, H. X.; Kim, B. K.; Kim, J. S.

doi:10.4150/kpmi.2015.22.3.208

Cited by 5 publications

(1 citation statement)

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“…The in situ fabrication method is known to be extremely effective for producing a fine and homogeneous distribution of particulate reinforcements in a matrix [2][3][4][5][6][7]. It usually includes the synthesis of a dispersoid phase within a matrix enthalpy value [10][11][12], the formation of nanostructured powders [13], good sinterability [14], and etc.…”

Section: ⅰ Introductionmentioning

confidence: 99%

in situ Fabrication of Fe-TiB2 Nanocomposite Powder by Planetary Ball Milling and Subsequent Heat-treatment of FeB and TiH2 Powder Mixture

2017

Korean J. Met. Mater.

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Fe-TiB2 powder was synthesized in-situ by the planetary ball milling and subsequent heat-treatment of an iron boride (FeB) and titanium hydride (TiH2) powder mixture. Mechanical activation of the (FeB+TiH2) powder mixtures was observed after a milling time of 3 hours at 700 rpm of rotation speed, but activation was not the same after 1 hour milling time. The particle size of the (FeB+ TiH2) powder mixture was reduced to the nanometer scale, and each constituent was homogeneously distributed. A sharp exothermic peak was observed at a lower temperature (749 ℃) on the DSC curves for the (FeB+TiH2) powder mixture milled for 3 hours, compared to the one milled for 1 hour (774 ℃). These peaks were confirmed to have resulted from the formation reaction of the TiB2 phase, from Ti and B elements in the FeB. The Fe-TiB2 composite powder fabricated in situ exhibited only two phases of Fe and TiB2 with homogeneous distribution. The size of the TiB2 particulates in the Fe matrix was less than 5 nm.

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