Preparation method of highly-textured Ti2AlN ceramics

Abstract

Disclosed is a preparation method of highly-textured Ti2AlN ceramics. The method comprises the steps that firstly, Ti, Al and TiN powder are adopted as initial raw materials, thermal explosion reaction sintering is performed, rapid cooling is performed, an oxidation layer on the surface of a blank is rubbed away, breaking and sieving are performed, Ti2AlN ceramic powder is obtained, then, a certain amount of Ti2AlN ceramic powder is taken to be added into a mold, and discharge plasma presintering is performed, when the sintering requirement meets the requirement, single-shaft pressurization and cooling are performed, finally, the sintered blank body is placed into the graphite mold, after the temperature of a cavity to be reacted meets the requirement, single-shaft pressurization and heat preservation are performed, then, cooling is performed to the room temperature, a highly-textured Ti2AlN ceramic block is obtained, a thermal explosion reaction can be used for rapidly preparing the high-purity and small-grain Ti2AlN ceramic block, the Ti2AlN ceramic block with grains with high preferred orientation is obtained through the discharge plasma sintering technology, and the method has the advantages of being easy and convenient to implement, high in sintering speed, and suitable for large-scale production.

Description

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AI Technical Summary

Benefits of technology

This new technology uses heated explosive reactions to create fine particles called titanium nitride (Ti_{2/Al) ceramia). These tiny particles have many advantages that make it better than previous methods like other techniques such as chemical vapor deposition or physical processes used during manufacture. They also provide higher strength when they were formed by burning them together instead of separately preparation.}

Problems solved by technology

This patented describes different ways for creating special types of aluminum nitride called cubic phases, including those containing titanium atoms and tantalum atom elements. These structures provide unique characteristics like being able to resist extreme temperatures without losing strength over longer periods of use compared to existing cerams made from metals alone.

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