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Title: Boron modified molybdenum silicide and products

Abstract

A boron-modified molybdenum silicide material is disclosed having the composition comprising about 80 to about 90 weight % Mo, about 10 to about 20 weight % Si, and about 0.1 to about 2 weight % B and a multiphase microstructure including Mo{sub 5}Si{sub 3} phase as at least one microstructural component effective to impart good high temperature creep resistance. The boron-modified molybdenum silicide material is fabricated into such products as electrical components, such as resistors and interconnects, that exhibit oxidation resistance to withstand high temperatures in service in air as a result of electrical power dissipation, electrical resistance heating elements that can withstand high temperatures in service in air and other oxygen-bearing atmospheres and can span greater distances than MoSi{sub 2} heating elements due to improved creep resistance, and high temperature structural members and other fabricated components that can withstand high temperatures in service in air or other oxygen-bearing atmospheres while retaining creep resistance associated with Mo{sub 5}Si{sub 3} for structural integrity. 7 figs.

Inventors:
;
Issue Date:
Research Org.:
Iowa State University
Sponsoring Org.:
USDOE, Washington, DC (United States); Department of Commerce, Washington, DC (United States)
OSTI Identifier:
321298
Patent Number(s):
5,865,909
Application Number:
PAN: 8-699,647; CNN: Grant ITA 87-02; TRN: 99:003331
Assignee:
Iowa State Univ. Research Foundation, Inc., Ames, IA (United States) PTO; SCA: 360200; PA: EDB-99:030345; SN: 99002064409
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 2 Feb 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BORON ADDITIONS; MOLYBDENUM SILICIDES; MICROSTRUCTURE; CREEP; USES; HEAT RESISTANT MATERIALS; CORROSION RESISTANCE

Citation Formats

Meyer, M.K., and Akinc, M. Boron modified molybdenum silicide and products. United States: N. p., 1999. Web.
Meyer, M.K., & Akinc, M. Boron modified molybdenum silicide and products. United States.
Meyer, M.K., and Akinc, M. Tue . "Boron modified molybdenum silicide and products". United States.
@article{osti_321298,
title = {Boron modified molybdenum silicide and products},
author = {Meyer, M.K. and Akinc, M.},
abstractNote = {A boron-modified molybdenum silicide material is disclosed having the composition comprising about 80 to about 90 weight % Mo, about 10 to about 20 weight % Si, and about 0.1 to about 2 weight % B and a multiphase microstructure including Mo{sub 5}Si{sub 3} phase as at least one microstructural component effective to impart good high temperature creep resistance. The boron-modified molybdenum silicide material is fabricated into such products as electrical components, such as resistors and interconnects, that exhibit oxidation resistance to withstand high temperatures in service in air as a result of electrical power dissipation, electrical resistance heating elements that can withstand high temperatures in service in air and other oxygen-bearing atmospheres and can span greater distances than MoSi{sub 2} heating elements due to improved creep resistance, and high temperature structural members and other fabricated components that can withstand high temperatures in service in air or other oxygen-bearing atmospheres while retaining creep resistance associated with Mo{sub 5}Si{sub 3} for structural integrity. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {2}
}