Method and apparatus for producing small hollow spheres

Title: Method and apparatus for producing small hollow spheres

Full Record
Other Related Research

Abstract

Method and apparatus for producing small hollow spheres of glass, metal or plastic, wherein the sphere material is mixed with or contains as part of the composition a blowing agent which decomposes at high temperature (T.gtoreq.600.degree. C.). As the temperature is quickly raised, the blowing agent decomposes and the resulting gas expands from within, thus forming a hollow sphere of controllable thickness. The thus produced hollow spheres (20 to 10.sup.3 .mu.m) have a variety of application, and are particularly useful in the fabrication of targets for laser implosion such as neutron sources, laser fusion physics studies, and laser initiated fusion power plants.

Inventors:

Hendricks, Charles D. ^[1]

(Livermore, CA)

Issue Date:: 1979-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 863403

Patent Number(s):: 4163637

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; apparatus; producing; hollow; spheres; glass; metal; plastic; sphere; material; mixed; contains; composition; blowing; agent; decomposes; temperature; gtoreq; 600; degree; quickly; raised; resulting; gas; expands; forming; controllable; thickness; produced; 20; 10; variety; application; particularly; useful; fabrication; targets; laser; implosion; neutron; sources; fusion; physics; studies; initiated; power; plants; power plants; hollow spheres; blowing agent; particularly useful; power plant; neutron source; laser fusion; produced hollow; neutron sources; fusion power; gas expands; laser initiated; sphere material; hollow sphere; /425/376/

Citation Formats


                    Hendricks, Charles D. Method and apparatus for producing small hollow spheres.  United States: N. p., 1979. 
        Web.

Copy to clipboard


                    Hendricks, Charles D. Method and apparatus for producing small hollow spheres.  United States.

Copy to clipboard


                    Hendricks, Charles D. Mon .  
        "Method and apparatus for producing small hollow spheres".  United States.  https://www.osti.gov/servlets/purl/863403.

Copy to clipboard


                    
@article{osti_863403,

  title        = {Method and apparatus for producing small hollow spheres},

  author       = {Hendricks, Charles D.},

  abstractNote = {Method and apparatus for producing small hollow spheres of glass, metal or plastic, wherein the sphere material is mixed with or contains as part of the composition a blowing agent which decomposes at high temperature (T.gtoreq.600.degree. C.). As the temperature is quickly raised, the blowing agent decomposes and the resulting gas expands from within, thus forming a hollow sphere of controllable thickness. The thus produced hollow spheres (20 to 10.sup.3 .mu.m) have a variety of application, and are particularly useful in the fabrication of targets for laser implosion such as neutron sources, laser fusion physics studies, and laser initiated fusion power plants.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Method for producing small hollow spheres

Patent Hendricks, Charles D. [Livermore, CA]

Method for producing small hollow spheres of glass, metal or plastic, wherein the sphere material is mixed with or contains as part of the composition a blowing agent which decomposes at high temperature (T .gtorsim. 600.degree. C). As the temperature is quickly raised, the blowing agent decomposes and the resulting gas expands from within, thus forming a hollow sphere of controllable thickness. The thus produced hollow spheres (20 to 10.sup.3 .mu.m) have a variety of application, and are particularly useful in the fabrication of targets for laser implosion such as neutron sources, laser fusion physics studies, and laser initiated fusionmore » power plants.« less
Full Text Available
Method for producing small hollow spheres

Patent Rosencwaig, Allen (Danville, CA); Koo, Jackson C. (San Ramon, CA); Dressler, John L. (Spring Valley, OH)

A method for producing small hollow spheres of glass having an outer diameter ranging from about 100.mu. to about 500.mu. with a substantially uniform wall thickness in the range of about 0.5-20.mu.. The method involves introducing aqueous droplets of a glass-forming solution into a long vertical drop oven or furnace having varying temperature regions. In one embodiment, one of the temperature regions is lower than both the preceeding region and the subsequent region. One region utilizes a temperature of at least 200.degree. C. higher than the melting point of the glass-forming material in the solution and, for example, may bemore »« less
Full Text Available
Method and apparatus for producing small hollow spheres

Patent Hendricks, C.D.

A method and apparatus are described for producing small hollow spheres of glass, metal or plastic, wherein the sphere material is mixed with or contains as part of the composition a blowing agent which decomposes at high temperature (T greater than or equal to 600/sup 0/C). As the temperature is quickly raised, the blowing agent decomposes and the resulting gas expands from within, thus forming a hollow sphere of controllable thickness. The thus produced hollow spheres (20 to 10/sup 3/ ..mu..m) have a variety of application, and are particularly useful in the fabrication of targets for laser implosion such asmore »« less
Method for producing small hollow spheres

Patent Hendricks, C.D.

Method is disclosed for producing small hollow spheres of glass, metal or plastic, wherein the sphere material is mixed with or contains as part of the composition a blowing agent which decomposes at high temperature (T [approx gt] 600 C). As the temperature is quickly raised, the blowing agent decomposes and the resulting gas expands from within, thus forming a hollow sphere of controllable thickness. The thus produced hollow spheres (20 to 10[sup 3] [mu]m) have a variety of application, and are particularly useful in the fabrication of targets for laser implosion such as neutron sources, laser fusion physics studies,more »« less
Improved method for producing small hollow spheres

Patent Rosencwaig, A.; Koo, J.C.; Dressler, J.L.

An improved method and apparatus for producing small hollow spheres of glass having an outer diameter ranging from about 100..mu.. to about 500..mu.. with a substantially uniform wall thickness in the range of about 0.5 to 20..mu.. are described. The method involves introducing aqueous droplets of a glass-forming solution into a long vertical drop oven or furnace having varying temperature regions.

Similar Records