Process for preparing a particulate ceramic material
Patent
·
OSTI ID:6217839
A process for preparing a particulate ceramic material comprising the steps of: adding carbon dioxide or an aqueous solution of a soluble carbonate to first aqueous solution of a nitrate or chloride of Ba, Sr, Ca or Mg in a first vessel to adjust the pH of said first aqueous solution to between 7 and 10 thereby forming a carbonate precipitate; adding an aqueous solution of a soluble hydroxide to a second aqueous solution of a nitrate or chloride of Ti, Zr, Sn or Pb in a second vessel to adjust the pH of said second aqueous solution to between 7 and 10 thereby forming a hydroxide precipitate; combining slurries containing the precipitates formed in said first and second vessels; mixing the combined slurries; passing the slurries through a filter; washing the filter cake with water; drying the filter cake to form a powder; calcining the dried powder; and grinding the calcined powder.
- Assignee:
- Murata Manutacturing Co., Ltd. (Japan)
- Patent Number(s):
- US 4537865
- OSTI ID:
- 6217839
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONATES
CERAMICS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
DISSOLUTION
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
LEAD COMPOUNDS
MAGNESIUM COMPOUNDS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POWDERS
SOLUBILITY
SOLUTIONS
STRONTIUM COMPOUNDS
SYNTHESIS
TIN COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONATES
CERAMICS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
DISSOLUTION
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
LEAD COMPOUNDS
MAGNESIUM COMPOUNDS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POWDERS
SOLUBILITY
SOLUTIONS
STRONTIUM COMPOUNDS
SYNTHESIS
TIN COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS