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Research & Development in Material Science

Laser Corrosion of TiN-TiB2 Ceramics

Submission: March 01, 2019;Published: March 07, 2019

DOI: 10.31031/RDMS.2019.10.000731

ISSN : 2576-8840
Volume10 Issue2


The paper presents the physicochemical corrosion process of composite TiN - TiB2 ceramics in the mode of pulsed laser irradiation in the atmosphere. It has been established that as a result of the development of high-temperature oxidation TiN and TiB2 processes and partial dissociation of these compounds the crater on the surface is formed. Oxidation processes lead to the formation of TiNx, TiB, TiO2, B2O3 and N2, whereas dissociation yields in Ti, B and N2, correspondingly. The gas and vapor products (B2O3 and N2) and part of the TiO2 melt in the form of droplets are removed away from the crater. Such compounds as TiNx, TiB and TiO2 are enriched the surface of the crater walls.

Keywords: TiN - TiB2 ceramics; Laser pulse irradiation; Phase transformation

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