Synthesis of Ti₂AlN MAX-phase by sintering in vacuum

Abstract

The dependence of MAX-phase synthesis on phase composition of the initial mixture and heat treatment terms in the electric furnace was investigated. Using Ti and AlN powders with the molecular ratio 2:1 as an example, the sequence of phase composition changes with increasing exposure temperature was tracked. It was established that the maximum amount of Ti2AlN MAX-phase in the end products is obtained at 1400°C. At this temperature a single phase product (100% wt Ti2AlN) was obtained for the initial mixture Ti:Al:TiN = 1:1:1. The principal possibility of scaling for obtaining a single-phase product of Ti2AlN by vacuum sintering was experimentally shown on the example of the mixture of this composition weighing 500 g at a certain mode of thermal vacuum treatment.

Synthesis and reaction path of Ti‐Al‐C MAX phases by reaction with Ti‐Al intermetallic compounds and TiC

“…It shows that the thermal decomposition tendency of the MAX phases varies due to various factors, such as reactant purity, temperature, vapor pressure, and atmosphere, to heat treatment equipment. [39][40][41][42] In this study, the difference in thermal decomposition behavior is due to the difference of intermetallic compound as a reactant and shows that the MAX phases using intermetallic compounds is more stable at high temperatures. In particular, the thermal decomposition behavior is different even within the intermetallic compound.…”

MAX phase Ti2AlN synthesis by reactive sintering in vacuum

“…Предварительные результаты по данному исследованию были ранее опубликованы в краткой форме [20] -был представлен фазовый состав продуктов для образцов в кварцевых трубках, заполненных исходной смесью порошков с насыпной плотностью.…”

Low Temperature Step Annealing Synthesis of the Ti2AlN MAX Phase to Fabricate MXene Quantum Dots

“…Thus, the bulk Ti 2 AlN MAX phase had been synthesized via multiple methods. The spectrum of these methods is broad and includes high-temperature synthesis [10][11][12][13], molten salt synthesis [14][15][16], hot isostatic pressing (HIP) [17][18][19], hot pressing (HP) [20][21][22], field assisted sintering technology (FAST) [6], spark plasma sintering (SPS) [4,6,23,24], ultra-high vacuum (UHV) deposition chamber reactive magnetron sputtering [1], microwave sintering [2], and shockactivated reaction synthesis [25].…”