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Title: Boron modified molybdenum silicide and products

Abstract

A boron-modified molybdenum silicide material 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.

Inventors:
 [1];  [2]
  1. (Idaho Falls, ID)
  2. (Ames, IA)
Issue Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
OSTI Identifier:
872124
Patent Number(s):
5865909
Application Number:
08/699,647
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA) AMES
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
boron; modified; molybdenum; silicide; products; boron-modified; material; composition; comprising; 80; 90; weight; 10; 20; multiphase; microstructure; including; phase; microstructural; component; effective; impart; temperature; creep; resistance; fabricated; electrical; components; resistors; interconnects; exhibit; oxidation; withstand; temperatures; service; air; result; power; dissipation; heating; elements; oxygen-bearing; atmospheres; span; distances; mosi; due; improved; structural; retaining; associated; integrity; power dissipation; silicide material; creep resistance; heating elements; resistance heating; structure including; electrical components; oxidation resistance; heating element; composition comprising; electrical power; electrical resistance; structural integrity; molybdenum silicide; temperature structural; boron modified; elements due; temperature creep; improved creep; modified molybdenum; resistance heat; structural component; electrical component; /148/420/

Citation Formats

Meyer, Mitchell K., and Akinc, Mufit. Boron modified molybdenum silicide and products. United States: N. p., 1999. Web.
Meyer, Mitchell K., & Akinc, Mufit. Boron modified molybdenum silicide and products. United States.
Meyer, Mitchell K., and Akinc, Mufit. Tue . "Boron modified molybdenum silicide and products". United States. https://www.osti.gov/servlets/purl/872124.
@article{osti_872124,
title = {Boron modified molybdenum silicide and products},
author = {Meyer, Mitchell K. and Akinc, Mufit},
abstractNote = {A boron-modified molybdenum silicide material 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {2}
}

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