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

Title: 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:
 [1];  [1]
  1. 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):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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 = {1982},
month = {1}
}

Patent:

Save / Share: