skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fabrication of low density ceramic material

Abstract

A precursor mixture and a method of making a low-density ceramic structural material are disclosed. The precursor mixture includes hollow microballoons, typically made of glass, together with a cementing agent capable of being cured by microwave irradiation. A preferred cementing agent is liquid hydrated potassium silicate, which is mixed with the glass microballoons to form a slurry. Upon irradiation the potassium silicate is dehydrated to form a solid porous matrix in which the microballoons are evenly distributed. Ground glass or other filling agents may be included in the slurry to enhance the properties of the final product. Low-density structural ceramics having densities on the order of 0.1 to 0.3 are obtained.

Inventors:
; ;
Issue Date:
Research Org.:
Los Alamos National Lab., NM (USA)
OSTI Identifier:
5275572
Application Number:
ON: DE85017766
Assignee:
Dept. of Energy EDB-85-148016
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; FABRICATION; ELECTRICAL INSULATION; THERMAL INSULATION; BUILDING MATERIALS; DEHYDRATION; FOAMS; GLASS; MICROWAVE RADIATION; POTASSIUM SILICATES; ALKALI METAL COMPOUNDS; COLLOIDS; DISPERSIONS; ELECTROMAGNETIC RADIATION; MATERIALS; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; RADIATIONS; SILICATES; SILICON COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Meek, T.T., Blake, R.D., and Sheinberg, H. Fabrication of low density ceramic material. United States: N. p., 1985. Web.
Meek, T.T., Blake, R.D., & Sheinberg, H. Fabrication of low density ceramic material. United States.
Meek, T.T., Blake, R.D., and Sheinberg, H. Tue . "Fabrication of low density ceramic material". United States.
@article{osti_5275572,
title = {Fabrication of low density ceramic material},
author = {Meek, T.T. and Blake, R.D. and Sheinberg, H.},
abstractNote = {A precursor mixture and a method of making a low-density ceramic structural material are disclosed. The precursor mixture includes hollow microballoons, typically made of glass, together with a cementing agent capable of being cured by microwave irradiation. A preferred cementing agent is liquid hydrated potassium silicate, which is mixed with the glass microballoons to form a slurry. Upon irradiation the potassium silicate is dehydrated to form a solid porous matrix in which the microballoons are evenly distributed. Ground glass or other filling agents may be included in the slurry to enhance the properties of the final product. Low-density structural ceramics having densities on the order of 0.1 to 0.3 are obtained.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}