Structural and Phase Transformations in Compact Titanium Nitride-Based Ceramics during High-Temperature Heating in Gaseous Media


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We have studied structural and phase transformations in the surface layer of compact titanium nitride-based ceramics during high-temperature annealing in vacuum, nitrogen, and air. The formation of an oxide phase during heat treatment of TiNx ceramics in air is controlled by bulk oxygen diffusion from the gas phase across an initially forming dense rutile TiO2 layer. Annealing in vacuum or nitrogen in the range 400–800°C changes neither the phase composition nor the grain structure of the ceramics.

作者简介

I. Kovalev

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

A. Ogarkov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

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Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

A. Shokod’ko

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

S. Shevtsov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

A. Konovalov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

S. Kannykin

Voronezh State University

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Universitetskaya pl. 1, Voronezh, 394018

A. Ashmarin

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

G. Kochanov

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

A. Chernyavskii

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

K. Solntsev

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: aogarkov@imet.ac.ru
俄罗斯联邦, Leninskii pr. 49, Moscow, 119334

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