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Title: Oxidation resistance of composite silicide coatings on niobium

Abstract

This paper reports the oxidation of NbSi/sub 2/-MoSi/sub 2/ composite silicide coatings produced by diffusive siliconizing of molybdenum films on a niobium surface. Molybdenum-coated niobium was siliconized and an x-ray microspectral analysis of the composite silicide coating showed the phase composition to be an ca 80-um-thick outer molybdenum disilicide film with a characteristic coarsely crystalline columnar structure, and inner ca 20-um film of niobium disilicide consisting of the tiny columnar crystals, and a substrate/coating interface comprising a thin, 2-3 um film of lower silicide, i.e., Nb/sub 5/Si/sub 3/. The average grain sizes, unit cell parameters, and x-ray determined densities of the Mo films obtained by various methods are shown.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Institute of Engineering Mechanics, Ukrainian SSR Acad of Sci.
OSTI Identifier:
6971520
Resource Type:
Journal Article
Journal Name:
Inorg. Mater. (Engl. Transl.); (United States)
Additional Journal Information:
Journal Volume: 22:2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MOLYBDENUM SILICIDES; CORROSION RESISTANCE; DIFFUSION COATING; NIOBIUM; CORROSION PROTECTION; PROTECTIVE COATINGS; NIOBIUM SILICIDES; CHEMICAL REACTION KINETICS; CRYSTAL STRUCTURE; DIFFUSION COATINGS; GRAIN SIZE; LATTICE PARAMETERS; OXIDATION; PLASMA ARC SPRAYING; STRUCTURAL CHEMICAL ANALYSIS; X-RAY DIFFRACTION; CHEMICAL REACTIONS; COATINGS; COHERENT SCATTERING; DEPOSITION; DIFFRACTION; ELEMENTS; KINETICS; METALS; MICROSTRUCTURE; MOLYBDENUM COMPOUNDS; NIOBIUM COMPOUNDS; REACTION KINETICS; REFRACTORY METAL COMPOUNDS; SCATTERING; SILICIDES; SILICON COMPOUNDS; SIZE; SPRAY COATING; SURFACE COATING; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; 360604* - Materials- Corrosion, Erosion, & Degradation; 360105 - Metals & Alloys- Corrosion & Erosion

Citation Formats

Gloshko, P I, Kurtsev, N F, Lisichenko, V I, Nadtoka, V N, Petrenko, M I, and Zmii, V I. Oxidation resistance of composite silicide coatings on niobium. United States: N. p., 1986. Web.
Gloshko, P I, Kurtsev, N F, Lisichenko, V I, Nadtoka, V N, Petrenko, M I, & Zmii, V I. Oxidation resistance of composite silicide coatings on niobium. United States.
Gloshko, P I, Kurtsev, N F, Lisichenko, V I, Nadtoka, V N, Petrenko, M I, and Zmii, V I. 1986. "Oxidation resistance of composite silicide coatings on niobium". United States.
@article{osti_6971520,
title = {Oxidation resistance of composite silicide coatings on niobium},
author = {Gloshko, P I and Kurtsev, N F and Lisichenko, V I and Nadtoka, V N and Petrenko, M I and Zmii, V I},
abstractNote = {This paper reports the oxidation of NbSi/sub 2/-MoSi/sub 2/ composite silicide coatings produced by diffusive siliconizing of molybdenum films on a niobium surface. Molybdenum-coated niobium was siliconized and an x-ray microspectral analysis of the composite silicide coating showed the phase composition to be an ca 80-um-thick outer molybdenum disilicide film with a characteristic coarsely crystalline columnar structure, and inner ca 20-um film of niobium disilicide consisting of the tiny columnar crystals, and a substrate/coating interface comprising a thin, 2-3 um film of lower silicide, i.e., Nb/sub 5/Si/sub 3/. The average grain sizes, unit cell parameters, and x-ray determined densities of the Mo films obtained by various methods are shown.},
doi = {},
url = {https://www.osti.gov/biblio/6971520}, journal = {Inorg. Mater. (Engl. Transl.); (United States)},
number = ,
volume = 22:2,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 1986},
month = {Tue Jul 01 00:00:00 EDT 1986}
}