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

Title: Method to produce large, uniform hollow spherical shells

Abstract

Large, uniform hollow spherical shells are produced by forming uniform size drops of heat decomposable or vaporizable material, evaporating the drops to form dried particles, coating the dried particles with a layer of shell forming material, and heating the composite particles to melt the outer layer and decompose or vaporize the inner particle to form an expanding inner gas bubble which expands the outer layer. By cycling the temperature and pressure on the hollow shells, spherical shells with uniform walls are produced.

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
865645
Patent Number(s):
4548767
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; produce; uniform; hollow; spherical; shells; produced; forming; size; drops; heat; decomposable; vaporizable; material; evaporating; form; dried; particles; coating; layer; shell; heating; composite; melt; outer; decompose; vaporize; inner; particle; expanding; gas; bubble; expands; cycling; temperature; pressure; walls; spherical shell; spherical shells; outer layer; hollow spherical; gas bubble; uniform size; forming material; uniform wall; hollow shell; heat decomposable; dried particles; uniform hollow; forming uniform; niform hollow; /264/65/376/425/

Citation Formats

Hendricks, Charles D. Method to produce large, uniform hollow spherical shells. United States: N. p., 1985. Web.
Hendricks, Charles D. Method to produce large, uniform hollow spherical shells. United States.
Hendricks, Charles D. Tue . "Method to produce large, uniform hollow spherical shells". United States. https://www.osti.gov/servlets/purl/865645.
@article{osti_865645,
title = {Method to produce large, uniform hollow spherical shells},
author = {Hendricks, Charles D.},
abstractNote = {Large, uniform hollow spherical shells are produced by forming uniform size drops of heat decomposable or vaporizable material, evaporating the drops to form dried particles, coating the dried particles with a layer of shell forming material, and heating the composite particles to melt the outer layer and decompose or vaporize the inner particle to form an expanding inner gas bubble which expands the outer layer. By cycling the temperature and pressure on the hollow shells, spherical shells with uniform walls are produced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

Save / Share: