Ti-Al-Si alloys are prospective material for high-temperature applications. Due to low density, good mechanical properties, and oxidation resistance, these intermetallic alloys can be used in the aerospace and automobile industries. Ti-Al-Si alloys were prepared by powder metallurgy using reactive sintering, milling, and spark plasma sintering. One of the novel SPS techniques is high-pressure spark plasma sintering (HP SPS), which was tested in this work and applied to a Ti-10Al-20Si intermetallic alloy using a pressure of 6 GPa and temperatures ranging from 1318 K (1045 °C) to 1597 K (1324 °C). The low-porosity consolidated samples consist of Ti5Si3 silicides in an aluminide (TiAl) matrix.
High-pressure spark plasma sintering (HP SPS): A promising and reliable method for preparing Ti-Al-Si alloys / Knaislova, Anna; Novak, Pavel; Cygan, SLAWOMIR JAKUB; Jaworska, LUCYNA RENATA; Cabibbo, M.. - In: MATERIALS. - ISSN 1996-1944. - ELETTRONICO. - 10:5 (465)(2017), pp. 1-8. [10.3390/ma10050465]