Fabrication of boron articles
Patent
·
OSTI ID:7305521
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. 3 claims.
- Assignee:
- Energy Research and Development Administration
- Patent Number(s):
- US 3976735
- OSTI ID:
- 7305521
- Country of Publication:
- United States
- Language:
- English
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