The characteristics of TiN ultrafine powder produced by an Arc-plasma method and improvement in the properties of sintered bodies from mixture of TiN and oxide powders

摘要

The characteristics of TiN ultrafine powder produced by changing the operational conditions in an arc-plasma method from systems, of Ti under an N_2 gas environment mixed with a gas such as Ar, He and h_2 were investigated. The specific surface area of the TiN powder is increased with the increase in the mixing ratio of He to N_2 gas. This is also increased while decreasing the gaseous pressure in the chamber as well as the electric current in the generator.