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Title: Fabrication of boron articles

Abstract

This invention is directed to the fabrication of boron articles by a powder metallurgical method wherein the articles are of a density close to the theoretical density of boron and are essentially crackfree. The method comprises the steps of admixing 1 to 10 weight percent carbon powder with amorphous boron powder, cold pressing the mixture and then hot pressing the cold pressed compact into the desired article. The addition of the carbon to the mixture provides a pressing aid for inhibiting the cracking of the hot pressed article and is of a concentration less than that which would cause the articles to possess significant concentrations of boron carbide.

Inventors:
 [1]
  1. Knoxville, TN
Issue Date:
Research Org.:
UNION CARBIDE CORP
OSTI Identifier:
862623
Patent Number(s):
3976735
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fabrication; boron; articles; directed; powder; metallurgical; method; density; close; theoretical; essentially; crackfree; comprises; steps; admixing; 10; weight; percent; carbon; amorphous; cold; pressing; mixture; hot; pressed; compact; desired; article; addition; provides; inhibiting; cracking; concentration; possess; significant; concentrations; carbide; cold pressing; percent carbon; cold pressed; amorphous boron; hot pressed; theoretical density; boron carbide; method comprises; weight percent; hot pressing; powder metallurgical; carbon powder; boron powder; possess significant; method comprise; hot press; desired article; significant concentration; boron articles; /264/376/976/

Citation Formats

Benton, Samuel T. Fabrication of boron articles. United States: N. p., 1976. Web.
Benton, Samuel T. Fabrication of boron articles. United States.
Benton, Samuel T. Thu . "Fabrication of boron articles". United States. https://www.osti.gov/servlets/purl/862623.
@article{osti_862623,
title = {Fabrication of boron articles},
author = {Benton, Samuel T},
abstractNote = {This invention is directed to the fabrication of boron articles by a powder metallurgical method wherein the articles are of a density close to the theoretical density of boron and are essentially crackfree. The method comprises the steps of admixing 1 to 10 weight percent carbon powder with amorphous boron powder, cold pressing the mixture and then hot pressing the cold pressed compact into the desired article. The addition of the carbon to the mixture provides a pressing aid for inhibiting the cracking of the hot pressed article and is of a concentration less than that which would cause the articles to possess significant concentrations of boron carbide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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