1975•OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Requires access

Oxidation of silicide coatings on niobium and its alloys VN-2 and VN-3

Tsirlin, Anatoly V. Kasatkin, A.V. Byalobzheskii

Abstract

The kinetics of silicized Nb alloy oxidation were investigated. It was found that the relatively low heat resistance of silicide coatings on niobium and VN-2 and VN-3 alloys at 1200 to 1400/sup 0/C is due to the formation of the higher niobium oxide Nb/sub 2/O/sub 5/ during oxidation, in addition to amorphous silica. The stage-by-stage character of the oxidation of coated samples is associated with the formation (under the oxide film) of a heterophase zone comprising a mixture of higher and lower niobium silicides. The presence of microcracks has a considerable influence on the oxidation process at 1400/sup 0/C.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Niobium, Silicide, Materials science, Oxide, Alloy, Niobium oxide, Metallurgy, Amorphous solid