Structure and Hardness of Ceramics Produced through High-Temperature Nitridation of Titanium Foil

Structure and Hardness of Ceramics Produced through High-Temperature Nitridation of Titanium Foil We have studied the variation in the phase composition, elemental composition, and microstructure of rolled titanium samples during thermal annealing in a nitrogen atmosphere at 1300, 1500, 1700, and 2000°C. The results demonstrate that the nitridation process can yield compact titanium nitride-based ceramics or TiN/TiN x /α-Ti⟨N⟩ heterostructures. X-ray diffraction data for the near-surface region of the samples before and after nitridation and those for cross-sectional fracture surfaces of heterostructures are used to infer orientation relationships between the TiN phase and α-Ti⟨N⟩ solid solution. Scanning electron microscopy results for cross-sectional fracture surfaces indicate that complete nitridation of the samples leads to the formation of a three-layer microstructure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Inorganic Materials Springer Journals

Structure and Hardness of Ceramics Produced through High-Temperature Nitridation of Titanium Foil

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Inorganic Chemistry; Industrial Chemistry/Chemical Engineering; Materials Science, general
ISSN
0020-1685
eISSN
1608-3172
D.O.I.
10.1134/S0020168518030135
Publisher site
See Article on Publisher Site

Abstract

We have studied the variation in the phase composition, elemental composition, and microstructure of rolled titanium samples during thermal annealing in a nitrogen atmosphere at 1300, 1500, 1700, and 2000°C. The results demonstrate that the nitridation process can yield compact titanium nitride-based ceramics or TiN/TiN x /α-Ti⟨N⟩ heterostructures. X-ray diffraction data for the near-surface region of the samples before and after nitridation and those for cross-sectional fracture surfaces of heterostructures are used to infer orientation relationships between the TiN phase and α-Ti⟨N⟩ solid solution. Scanning electron microscopy results for cross-sectional fracture surfaces indicate that complete nitridation of the samples leads to the formation of a three-layer microstructure.

Journal

Inorganic MaterialsSpringer Journals

Published: Mar 14, 2018

References

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