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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)
Publication Date:
OSTI Identifier:
864254
Patent Number(s):
US 4336338
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
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:

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