Combustion synthesis of Ti-B-Al system
by Osamu Odawara, Yuichi Momoi
International Journal of Materials and Product Technology (IJMPT), Vol. 10, No. 3/4/5/6, 1995

Abstract: Finely dispersed TiB₂ is synthesised by reacting a powder mixture of Ti, B and Al in the molar ratio of 1:4:1 and the grain size of the synthesized TiB, is < 0.5µm. which is much smaller than that obtained from the reaction of a powder mixture of Ti, B and Al in the molar ratio 1:(n+2):0 or 1:Z:n (n = 0, 1.2 or 3). It is estimated that, in the case of the Ti+4B+Al, the reaction of Al-B system following TiB₂ combustion synthesis would generate the excess heat behind the combustion front, resulting in long keeping time at high temperatures. The net effect is that the nucleation of TiB₂ increases much more than that in other situations studied.

Online publication date: Wed, 03-Nov-2010

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