Published July 1994 | Version v1
Journal article Metadata-only

Thermal stability of silicide coatings on molybdenum and its alloys

Creators

  • 1. AN SSSR, Moscow (Russian Federation). Inst. Fizicheskoj Khimii

Description

Molybdenum samples as well as Mo + W + Re alloys are subjected to diffusion annealing in silicon powder and in a powder mixture containing the highest chromium silicide, CrSi2, and copper fluoride. The thermal stability of a coating produced by the method described is determined. It is shown that the main phase providing for protection of Mo and its alloys against oxidation in the air within 800-1800 deg C temperature region, is a MoSi2 one, and at 1850-2150 deg C - Mo5Si3. Silicide coatings on molybdenum and its alloys under their thickness exceeding 50 μm are deficient, i.e. they have cracks and pores

Additional details

Additional titles

Original title (Russian)
Жаростойкост' силицидных покрытий на молибдене и его сплавах

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
30
Journal Issue
7
Journal Page Range
p. 928-931.
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
26019826
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANNEALING; DIFFUSION; HEAT RESISTING ALLOYS; INTERSTITIALS; MOLYBDENUM; MOLYBDENUM ALLOYS; MOLYBDENUM SILICIDES; PROTECTIVE COATINGS; RHENIUM ALLOYS; TEMPERATURE RANGE 1000-4000 K; THICKNESS; TUNGSTEN ALLOYS
Descriptors DEC
ALLOYS; COATINGS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIMENSIONS; ELEMENTS; HEAT RESISTANT MATERIALS; HEAT TREATMENTS; MATERIALS; METALS; MOLYBDENUM COMPOUNDS; POINT DEFECTS; SILICIDES; SILICON COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS