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Title: High density crystalline boron prepared by hot isostatic pressing in refractory metal containers

Abstract

Boron powder is hot isostatically pressed in a refractory metal container to produce a solid boron monolith with a bulk density at least 2.22 g/cc and up to greater than 2.34 g/cc. The refractory metal container is formed of tantalum, niobium, tungsten, molybdenum or alloys thereof in the form of a canister or alternatively plasma sprayed or chemical vapor deposited onto a powder compact. Hot isostatic pressing at 1800{degrees}C and 30 KSI (206.8 MPa) argon pressure for four hour produces a bulk density of 2.34 g/cc. Complex shapes can be made.

Inventors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10104542
Patent Number(s):
PATENTS-US-A7539392
Application Number:
ON: DE92003749; PAN: 7-539,392
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 1990
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BORON; HOT PRESSING; INVENTIONS; REFRACTORIES; BULK DENSITY; TANTALUM; NIOBIUM; TUNGSTEN; MOLYBDENUM; 360601; PREPARATION AND MANUFACTURE

Citation Formats

Hoenig, C L. High density crystalline boron prepared by hot isostatic pressing in refractory metal containers. United States: N. p., 1990. Web.
Hoenig, C L. High density crystalline boron prepared by hot isostatic pressing in refractory metal containers. United States.
Hoenig, C L. Mon . "High density crystalline boron prepared by hot isostatic pressing in refractory metal containers". United States.
@article{osti_10104542,
title = {High density crystalline boron prepared by hot isostatic pressing in refractory metal containers},
author = {Hoenig, C L},
abstractNote = {Boron powder is hot isostatically pressed in a refractory metal container to produce a solid boron monolith with a bulk density at least 2.22 g/cc and up to greater than 2.34 g/cc. The refractory metal container is formed of tantalum, niobium, tungsten, molybdenum or alloys thereof in the form of a canister or alternatively plasma sprayed or chemical vapor deposited onto a powder compact. Hot isostatic pressing at 1800{degrees}C and 30 KSI (206.8 MPa) argon pressure for four hour produces a bulk density of 2.34 g/cc. Complex shapes can be made.},
doi = {},
url = {https://www.osti.gov/biblio/10104542}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {12}
}