Abstract
Nb-Al intermetallic compounds have been synthesized from Al/Nb or Nb/NbAl3 mixed powders by means of spark plasma sintering (SPS). Hot press sintering (HP) has also adopted to obtain these intermetallic compounds. Results obtained from HP technique were compared with those from SPS technique.
Results obtained were as follows; Nb2Al intermetallic compound was obtained by both process. However, formation of intermetallic compounds was advanced more in SPS than in HP process. Moreover, Nb3Al was synthesized only by SPS process. These differences are thought to come from the effect of pulse electric current of SPS which has originally possessed characteristics SPS process, i.e., activation of powder surface, etc.
