Phase Transformations in the Surface Layer of Compact Zirconium Nitride-Based Ceramics
- 作者: Kovalev I.A.1, Shokodko A.V.1, Ogarkov A.I.1, Shevtsov S.V.1, Konovalov A.A.1, Kannykin S.V.2, Ashmarin A.A.1, Kolomiets T.Y.1, Chernyavskii A.S.1, Solntsev K.A.1
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隶属关系:
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
- Voronezh State University
- 期: 卷 55, 编号 7 (2019)
- 页面: 724-729
- 栏目: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158731
- DOI: https://doi.org/10.1134/S0020168519070082
- ID: 158731
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详细
We have studied structural, morphological, and phase transformations in the surface layer of compact zirconium nitride-based ceramics during high-temperature annealing in vacuum, nitrogen, and air. The formation of oxygen-containing phases during heat treatment of ZrN is controlled by bulk and grain-boundary oxygen diffusion. At the beginning of the process, oxygen is supplied by an amorphous surface layer, which always forms during the ceramic preparation process. In air, the process is driven by oxygen indiffusion from the gas phase across an initially forming porous oxide layer. Grain-boundary oxygen diffusion leads to the formation of a crystalline zirconium oxide layer on grain boundaries and crack nucleation.
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. Shokodko
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
编辑信件的主要联系方式.
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
T. Kolomiets
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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