JPS6418914A - Production of perovskite-type ceramics powder - Google Patents

Production of perovskite-type ceramics powder

Info

Publication number
JPS6418914A
JPS6418914A JP62172993A JP17299387A JPS6418914A JP S6418914 A JPS6418914 A JP S6418914A JP 62172993 A JP62172993 A JP 62172993A JP 17299387 A JP17299387 A JP 17299387A JP S6418914 A JPS6418914 A JP S6418914A
Authority
JP
Japan
Prior art keywords
perovskite
calcining
complex
partial pressure
mixed metallic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62172993A
Other languages
Japanese (ja)
Inventor
Takahiro Yamakawa
Hiromichi Otaki
Keizo Tsukamoto
Senjo Yamagishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Cement Co Ltd
Original Assignee
Nihon Cement Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nihon Cement Co Ltd filed Critical Nihon Cement Co Ltd
Priority to JP62172993A priority Critical patent/JPS6418914A/en
Publication of JPS6418914A publication Critical patent/JPS6418914A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE:To obtain perovskite-type ceramics powder without containing a large amount of oxygen defects, by thermally decomposing a complex or mixed metallic oxalate, pulverizing the resultant decomposition product and calcining the obtained powder in the an atmosphere under a specific oxygen partial pressure. CONSTITUTION:A complex or mixed metallic oxalate to provide perovskite-type ceramic powder by thermal decomposition calcining is thermally decomposed, then pulverized and subsequently calcined in an atmosphere under >=0.25 oxygen partial pressure. A complex or mixed metallic oxalate normally synthesized by a wet process can be employed as the complex or mixed metallic oxalate used and may be a substance capable of providing the aimed perovskite-type ceramic powder by calcining. The total pressure in a furnace in calcining is preferably >=1atm. If the oxygen partial pressure is below 0.25, oxygen defects of the perovskite-type crystal cannot be corrected. If the partial pressure exceeds 0.8, especially great effects on characteristics cannot be expected and it is not advantageous in aspects of safety and economics.
JP62172993A 1987-07-13 1987-07-13 Production of perovskite-type ceramics powder Pending JPS6418914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62172993A JPS6418914A (en) 1987-07-13 1987-07-13 Production of perovskite-type ceramics powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62172993A JPS6418914A (en) 1987-07-13 1987-07-13 Production of perovskite-type ceramics powder

Publications (1)

Publication Number Publication Date
JPS6418914A true JPS6418914A (en) 1989-01-23

Family

ID=15952193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62172993A Pending JPS6418914A (en) 1987-07-13 1987-07-13 Production of perovskite-type ceramics powder

Country Status (1)

Country Link
JP (1) JPS6418914A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09278533A (en) * 1996-04-09 1997-10-28 Murata Mfg Co Ltd Production of ceramic stock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09278533A (en) * 1996-04-09 1997-10-28 Murata Mfg Co Ltd Production of ceramic stock

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