Hollow spherical shell manufacture

Patent · Tue Jan 01 04:00:00 EST 1991

OSTI ID:868075

O'Holleran, Thomas P ^[1]

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1. Belleville, MI

A process for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry.

• Research Organization: KMS Fusion Inc
• DOE Contract Number: AC03-87DP10560
• Assignee: KMS Fusion, Inc. (Ann Arbor, MI)
• Patent Number(s): US 5068071
• OSTI ID: 868075
• Country of Publication: United States
• Language: English

Related Subjects

/264/65/419/
agent
aqueous
aqueous suspension
blowing
blowing agent
carrier
cavity
center
compact
composition
deposited
effective
form
geometry
glass
glass composition
glass particles
glass shell
gravity
green
heated
hollow
hollow spherical
homogeneous
immiscible
immiscible liquid
leaving
liquid
liquid blowing
manufacture
migrate
mold
mold cavity
particles
placed
porous
process
reduce
removed
shell
silicate
silicate glass
sintered
spherical
spherical cavity
spherical shell
spun
substantially
substantially homogeneous
sufficient
suspension
temperature
temperature sufficient
time
uniform
urge
vaporize
water
zero