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Title: High density-high purity graphite prepared by hot isostatic pressing in refractory metal containers

Abstract

Porous graphite in solid form is hot isostatically pressed in a refractory metal container to produce a solid graphite monolith with a bulk density greater than or equal to 2.10 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, chemically vapor deposited, or coated by some other suitable means onto graphite. Hot isostatic pressing at 2,200 C and 30 KSI (206.8 MPa) argon pressure for two hours produces a bulk density of 2.10 g/cc. Complex shapes can be made. 1 fig.

Inventors:
Issue Date:
OSTI Identifier:
7103497
Patent Number(s):
5336520 A
Application Number:
PPN: US 7-539270
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-131818
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 18 Jun 1990
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GRAPHITE; HOT PRESSING; CHEMICAL VAPOR DEPOSITION; PLASMA ARC SPRAYING; POROUS MATERIALS; CARBON; CHEMICAL COATING; DEPOSITION; ELEMENTAL MINERALS; ELEMENTS; FABRICATION; MATERIALS; MATERIALS WORKING; MINERALS; NONMETALS; PRESSING; SPRAY COATING; SURFACE COATING; 360601* - Other Materials- Preparation & Manufacture

Citation Formats

Hoenig, C.L. High density-high purity graphite prepared by hot isostatic pressing in refractory metal containers. United States: N. p., 1994. Web.
Hoenig, C.L. High density-high purity graphite prepared by hot isostatic pressing in refractory metal containers. United States.
Hoenig, C.L. Tue . "High density-high purity graphite prepared by hot isostatic pressing in refractory metal containers". United States.
@article{osti_7103497,
title = {High density-high purity graphite prepared by hot isostatic pressing in refractory metal containers},
author = {Hoenig, C.L.},
abstractNote = {Porous graphite in solid form is hot isostatically pressed in a refractory metal container to produce a solid graphite monolith with a bulk density greater than or equal to 2.10 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, chemically vapor deposited, or coated by some other suitable means onto graphite. Hot isostatic pressing at 2,200 C and 30 KSI (206.8 MPa) argon pressure for two hours produces a bulk density of 2.10 g/cc. Complex shapes can be made. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {8}
}