Slip casting nano-particle powders for making transparent ceramics
AssigneeLawrence Livermore National Security, LLC
InventorsJoshua D. Kuntz, Thomas F. Soules, Richard Lee Landingham, Joel P. Hollingsworth
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Abstract
A method of making a transparent ceramic including the steps of providing nano-ceramic powders in a processed or unprocessed form, mixing the powders with de-ionized water, the step of mixing the powders with de-ionized water producing a slurry, sonifing the slurry to completely wet the powder and suspend the powder in the de-ionized water, separating very fine particles from the slurry, molding the slurry, and curing the slurry to produce the transparent ceramic.
Claims24
A method of making a transparent ceramic, comprising the steps of:
- providing nano-ceramic powders in a processed or unprocessed form,
- mixing said powders with de-ionized water, said step of mixing said powders with de-ionized water producing a slurry,
- sonifying said slurry to completely wet said powder and suspend said powder in said de-ionized water,
- separating very fine particles from said slurry,
- molding said slurry, and
- curing said slurry to produce the transparent ceramic.
A method of making a transparent ceramic, comprising the steps of:
- providing nano-ceramic powders in a processed or unprocessed form by preparing powders by combustion of organometallic compounds that are heated and calcined to remove organics,
- mixing said powders with de-ionized water, said step of mixing said powders with de-ionized water producing a slurry,
- sonifing said slurry to completely wet said powder and suspend said powder in said de-ionized water by using an ultrasonic horn immersed in the slurry for sonifing said slurry or using a high shear mixer for sonifing said slurry,
- separating very fine particles from said slurry by allowing said slurry to settle producing a liquid suspension containing said very fine particles and larger particles and including decanting said larger particles,
- molding said slurry, and
- curing said slurry to produce the transparent ceramic.
A method of making a transparent ceramic, comprising the steps of:
- providing nano-ceramic powders in a processed or unprocessed form by preparing powders by combustion of organometallic compounds that are heated and calcined to remove organics,
- mixing said powders with de-ionized water, said step of mixing said powders with de-ionized water producing a slurry,
- sonifing said slurry to completely wet said powder and suspend said powder in said de-ionized water by using an ultrasonic horn immersed in the slurry for sonifing said slurry or using a high shear mixer for sonifing said slurry,
- separating very fine particles from said slurry by allowing said slurry to settle producing a liquid suspension containing said very fine particles and larger particles and including decanting said larger particles,
- molding said slurry by forming a mold by preparing a mix plaster-of-Paris by mixing two parts of plaster-of-Paris by weight to one part by weight water to form a mix and pouring said mix into a container, and
- curing said slurry to produce the transparent ceramic.
A method of making a transparent ceramic, comprising the steps of:
- providing nano-ceramic powders in a processed or unprocessed form by preparing powders by combustion of organometallic compounds that are heated and calcined to remove organics,
- mixing said powders with de-ionized water, said step of mixing said powders with de-ionized water producing a slurry,
- sonifing said slurry to completely wet said powder and suspend said powder in said de-ionized water by using an ultrasonic horn immersed in the slurry for sonifing said slurry or using a high shear mixer for sonifing said slurry,
- separating very fine particles from said slurry by allowing said slurry to settle producing a liquid suspension containing said very fine particles and larger particles and including decanting said larger particles, molding said slurry by forming a mold by preparing a container with a layer of cellulose fibers and superabsorbent polymers, and
- curing said slurry to produce the transparent ceramic.
Dependencies are inferred from the claim text.