Open AccessPhase formation at the Ti<sub>2</sub>AlN under the spark-plasma sintering in the Ti/AlN system
Author(s) -
В. Г. Гилев,
M. N. Kachenyuk
Publication year - 2018
Publication title -
novye ogneupory
Language(s) - English
Resource type - Journals
ISSN - 1683-4518
DOI - 10.17073/1683-4518-2018-12-49-53
Subject(s) - spark plasma sintering , materials science , sintering , porosity , phase (matter) , plasma , analytical chemistry (journal) , metallurgy , composite material , chemistry , physics , organic chemistry , chromatography , quantum mechanics
The synthesis of the Ti 2 AlN-based material by means of the mechanical activation (MA) of the Ti‒AlN powder mixture in the planetary mill followed by the vacuum spark-plasma sintering (SPS). It was shown that the phase ratio AlN/Ti gradually decreases under mechanical activation. The data are given on the sample's phase composition, density and hardness after the SPS. The maximum Ti 2 AlN content value of 90 mass percent was achieved at the SPS temperature 1300 °C. The samples had the lowest porosity value of 1,9 % at the SPS temperature 1200‒1300 °C, the HV 0,5 hardness being close to 7 GPa.