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:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 865645
- Patent Number(s):
- 4548767
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
G - PHYSICS G21 - NUCLEAR PHYSICS G21B - FUSION REACTORS
- 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}
}