Title:
PRODUCTION OF PEROVSKITE-TYPE MULTIPLE OXIDE POWDER
Document Type and Number:
Japanese Patent JP3216160
Kind Code:
B2
Abstract:
PURPOSE: To provide the subject powder of fine particle size with high surface activity, narrow in particle size distribution, and uniform in composition.
CONSTITUTION: The objective powder of general formula (A1-xA'x)BO3 (A is at least one kind of alkaline earth metal; A' is at least one kind of doping element selected from bismuth and lanthanide series; B is at least one kind of tetravalent metallic element; x<0 or 1). This powder can be obtained by the following method: an alkoxide of tetravalent metallic element such as titanium is added to a warm aqueous solution of (1) at least one kind of alkaline earth metal hydroxide and (2) 1-4 moles of an alkali per mol of hydroxide to produce and precipitate a basic composition of general formula ABO3 (A is at least one kind of alkaline earth metal; B is at least one kind of tetravalent metallic element) followed by addition of an alkoxide of doping element to produce and precipitate a doping element compound, and the resulting mixed precipitate is calcined.
More Like This:
| JPH07156758 | MIRROR WITH HEATER |
| WO/2020/230657 | OXIDE-BASED SOLID-STATE ELECTROLYTE |
| JP5311363 | Functional materials and their manufacturing methods |
Inventors:
Okabe
Yukio Hamachi
Yukio Sakabe
Yukio Hamachi
Yukio Sakabe
Application Number:
JP22693591A
Publication Date:
October 09, 2001
Filing Date:
September 06, 1991
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
C01G23/00; (IPC1-7): C01G23/00
Domestic Patent References:
| JP6259529A | ||||
| JP63117914A | ||||
| JP643019A | ||||
| JP2311315A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)
Previous Patent: Spectacles frame
Next Patent: PRODUCTION OF PIZZA BASE-LIKE FOOD AND PIZZA-LIKE FOOD
Next Patent: PRODUCTION OF PIZZA BASE-LIKE FOOD AND PIZZA-LIKE FOOD