PT Journal AU Knaislova, A Simunkova, V Novak, P TI High-temperature Oxidation of Intermetallics Based on Ti-Al-Si System SO Manufacturing Technology Journal PY 2018 BP 255 EP 258 VL 18 IS 2 DI 10.21062/ujep/87.2018/a/1213-2489/MT/18/2/255 DE Thermal stability; Parabolic constant; Intermetallics; Reactive sintering AB Ti-Al-Si alloys excel with their low density and good resistance against high-temperature oxidation in comparison with so far commonly used nickel alloys. Silicon in Ti-Al-Si alloys has significant positive effect on high-temperature oxidation due to increasing adhesion of oxide layer. The TiAl20Si20 alloy was evaluated as the best alloy from tested ones, because its oxide layer protected very well the basic material and TiAl20Si20 achieved good hardness after 400 hours of annealing. ER