Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1984-06-27
1987-01-06
Guynn, Herbert B.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428407, 264 43, 501 86, C30B 2916, B29C 7102
Patent
active
H00002003
ABSTRACT:
A high temperature structural insulating material useful as a liner for cylinders of high temperature engines through the favorable combination of high service temperature (above about 800.degree. C.), low thermal conductivity (below about 0.2 W/m.degree. C.), and high compressive strength (above about 250 psi). The insulating material is produced by selecting hollow ceramic beads with a softening temperature above about 800.degree. C., a diameter within the range of 20-200 .mu.m, and a wall thickness in the range of about 2-4 .mu.m; compacting the beads and a compatible silicate binder composition under pressure and sintering conditions to provide the desired structural form with the structure having a closed-cell, compact array of bonded beads.
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Chen, Wayne Y. C., High Temperature Structural Insulating Material with Closed Cell Structure, Particulate Science and Technology, 1983, pp. 335-356.
"Proc. of the First Conf. on Advanced Materials for Alternative Fuel Capable Directly Fired Heat Engines" edited by John W. Fairbanks and John Stringer, Jul. 31-Aug. 3, 1979, pp. 527-541, pp. 582-605.
"A Closed Cell Structural Material Having High Temperature Thermal Insulating Properties" by W. Y. C. Chen and J. G. Daley, Argonne National Laboratory Report, ANL-82-54, 1982.
Large Cost Reduction and Efficiency Enhancement of Stirling Engines by Deployment of Porous Ceramic Insulation" (Feasibility Study), Stirling Technology, Inc., 1980.
Churm Arthur A.
Guynn Herbert B.
Hightower Judson R.
Jorgensen Eric
The United States of America as represented by the United States
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