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Title: Supercritical fluid technologies for ceramic-processing applications

Abstract

This paper reports on the applications of supercritical fluid technologies for ceramic processing. The physical and chemical properties of these densified gases are summarized and related to their use as solvents and processing media. Several areas are identified in which specific ceramic processes benefit from the unique properties of supercritical fluids. The rapid expansion of supercritical fluid solutions provides a technique for producing fine uniform powders and thin films of widely varying materials. Supercritical drying technologies allow the formation of highly porous aerogel products with potentially wide application. Hydrothermal processes leading to the formation of large single crystals and microcrystalline powders can also be extended into the supercritical regime of water. Additional applications and potential applications are identified in the areas of extraction of binders and other additives from ceramic compacts, densification of porous ceramics, the formation of powders in supercritical micro-emulsions, and in preceramic polymer processing.

Authors:
;  [1]
  1. (Chemical Methods and Separations Group, Chemical Sciences Dept., Battelle Pacific Northwest Lab., Richland, WA (US))
Publication Date:
OSTI Identifier:
6170878
Resource Type:
Journal Article
Journal Name:
Journal of the American Ceramic Society; (United States)
Additional Journal Information:
Journal Volume: 72:6; Journal ID: ISSN 0002-7820
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; FABRICATION; POWDERS; CHEMICAL PROPERTIES; DRYING; MICROEMULSIONS; MONOCRYSTALS; PHYSICAL PROPERTIES; POLYMERS; SUPERCRITICAL GAS EXTRACTION; SUPERCRITICAL STATE; TECHNOLOGY ASSESSMENT; COLLOIDS; CRYSTALS; DISPERSIONS; EMULSIONS; EXTRACTION; SEPARATION PROCESSES; SOLVENT EXTRACTION; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication; 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Matson, D.W., and Smith, R.D. Supercritical fluid technologies for ceramic-processing applications. United States: N. p., 1989. Web. doi:10.1111/j.1151-2916.1989.tb06237.x.
Matson, D.W., & Smith, R.D. Supercritical fluid technologies for ceramic-processing applications. United States. doi:10.1111/j.1151-2916.1989.tb06237.x.
Matson, D.W., and Smith, R.D. Thu . "Supercritical fluid technologies for ceramic-processing applications". United States. doi:10.1111/j.1151-2916.1989.tb06237.x.
@article{osti_6170878,
title = {Supercritical fluid technologies for ceramic-processing applications},
author = {Matson, D.W. and Smith, R.D.},
abstractNote = {This paper reports on the applications of supercritical fluid technologies for ceramic processing. The physical and chemical properties of these densified gases are summarized and related to their use as solvents and processing media. Several areas are identified in which specific ceramic processes benefit from the unique properties of supercritical fluids. The rapid expansion of supercritical fluid solutions provides a technique for producing fine uniform powders and thin films of widely varying materials. Supercritical drying technologies allow the formation of highly porous aerogel products with potentially wide application. Hydrothermal processes leading to the formation of large single crystals and microcrystalline powders can also be extended into the supercritical regime of water. Additional applications and potential applications are identified in the areas of extraction of binders and other additives from ceramic compacts, densification of porous ceramics, the formation of powders in supercritical micro-emulsions, and in preceramic polymer processing.},
doi = {10.1111/j.1151-2916.1989.tb06237.x},
journal = {Journal of the American Ceramic Society; (United States)},
issn = {0002-7820},
number = ,
volume = 72:6,
place = {United States},
year = {1989},
month = {6}
}