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Title: High temperature structural insulating material

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.

Inventors:
 [1]
  1. (Munster, IN)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
875190
Patent Number(s):
US H200
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; structural; insulating; material; useful; liner; cylinders; engines; favorable; combination; service; 800; degree; thermal; conductivity; below; compressive; strength; 250; psi; produced; selecting; hollow; ceramic; beads; softening; diameter; range; 20-200; wall; thickness; 2-4; compacting; compatible; silicate; binder; composition; pressure; sintering; conditions; provide; desired; form; structure; closed-cell; compact; array; bonded; ceramic beads; material useful; softening temperature; compressive strength; wall thickness; insulating material; thermal conductivity; temperature structural; hollow ceramic; selecting hollow; structural insulating; compact array; service temperature; temperature engine; structural form; /428/264/501/

Citation Formats

Chen, Wayne Y. High temperature structural insulating material. United States: N. p., 1987. Web.
Chen, Wayne Y. High temperature structural insulating material. United States.
Chen, Wayne Y. Thu . "High temperature structural insulating material". United States. doi:. https://www.osti.gov/servlets/purl/875190.
@article{osti_875190,
title = {High temperature structural insulating material},
author = {Chen, Wayne Y.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Patent:

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