TiAl_3の放電焼結による固化成形 [in Japanese] Consolidation of Titanium Tri-aluminide using by Spark Plasma Sintering [in Japanese]
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Ti-5mass%Al, Ti-I0mass%A1, Ti-32mass%Al and Ti-64mass%Al were synthesized by mechanical alloying (MA) of Ti powder and Al powder using a planetary ball milling for 360ks in 66kPa argon gas atmosphere. Ti-64mass%Al powder milled for 360ks was Al solid solution. Non stoichiometric Ti-Al powder milled for 360ks became amorphous state with an increase of Al content in the MA powder.<BR>The mixture of MA powder and Al powder, which contained 64mass%Al, was consolidated by spark plasma sintering(SPS). The starting temperature for shrinkage in SPS process was decreased by the addition of Al powder into MA powder. In the mixture of Ti-5mass%Al MA powder and Al powder, the consolidated TiA1<SUB>3</SUB> was obtained by SPS at 1073K for 0.3ks. This sintered body had a homogeneous fine microstructure.
- J. Jpn. Soc. Powder Powder Metallurgy
J. Jpn. Soc. Powder Powder Metallurgy 44(6), 554-559, 1997-06-15
Japan Society of Powder and Powder Metallurgy