Hollow microspheres of silica glass and method of manufacture
Abstract
A method of manufacturing gel powder suitable for use as a starting material in the manufacture of hollow glass microspheres having a high concentration of silica. The powder is manufactured from a gel containing boron in the amount of about 1% to 20% (oxide equivalent mole percent), alkali metals, specifically potassium and sodium, in an amount exceeding 8% total, and the remainder silicon. Preferably, the ratio of potassium to sodium is greater than 1.5.
- Inventors:
-
- Ann Arbor, MI
- Issue Date:
- OSTI Identifier:
- 864254
- Patent Number(s):
- 4336338
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- DOE Contract Number:
- ED-78-C-08-1598
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hollow; microspheres; silica; glass; method; manufacture; manufacturing; powder; suitable; starting; material; concentration; manufactured; containing; boron; amount; 20; oxide; equivalent; mole; percent; alkali; metals; specifically; potassium; sodium; exceeding; total; remainder; silicon; preferably; ratio; hollow microspheres; starting material; alkali metal; mole percent; alkali metals; hollow glass; glass microspheres; powder suitable; silica glass; glass microsphere; containing boron; /428/65/264/501/
Citation Formats
Downs, Raymond L, and Miller, Wayne J. Hollow microspheres of silica glass and method of manufacture. United States: N. p., 1982.
Web.
Downs, Raymond L, & Miller, Wayne J. Hollow microspheres of silica glass and method of manufacture. United States.
Downs, Raymond L, and Miller, Wayne J. Fri .
"Hollow microspheres of silica glass and method of manufacture". United States. https://www.osti.gov/servlets/purl/864254.
@article{osti_864254,
title = {Hollow microspheres of silica glass and method of manufacture},
author = {Downs, Raymond L and Miller, Wayne J},
abstractNote = {A method of manufacturing gel powder suitable for use as a starting material in the manufacture of hollow glass microspheres having a high concentration of silica. The powder is manufactured from a gel containing boron in the amount of about 1% to 20% (oxide equivalent mole percent), alkali metals, specifically potassium and sodium, in an amount exceeding 8% total, and the remainder silicon. Preferably, the ratio of potassium to sodium is greater than 1.5.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}
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