JPS57183324A - Preparation of calcium titanate - Google Patents

Preparation of calcium titanate

Info

Publication number
JPS57183324A
JPS57183324A JP6910181A JP6910181A JPS57183324A JP S57183324 A JPS57183324 A JP S57183324A JP 6910181 A JP6910181 A JP 6910181A JP 6910181 A JP6910181 A JP 6910181A JP S57183324 A JPS57183324 A JP S57183324A
Authority
JP
Japan
Prior art keywords
needle
tio
catio
elongated
particles
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
JP6910181A
Other languages
Japanese (ja)
Inventor
Yasutaka Horibe
Masaki Inada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6910181A priority Critical patent/JPS57183324A/en
Publication of JPS57183324A publication Critical patent/JPS57183324A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

PURPOSE: To make it possible to prepare a needle-like, columnar or platy particulate powder of CaTiO3 elongated in the crystallographic axial direction, by mixing a neelde-like particulate powder of hydrous TiO2 or anatase type TiO2 particulate powder with CaO, and calcining the resultant mixture.
CONSTITUTION: K2O.4TiO2 fibers are allowed to stand in hydrochloric acid to remove the K component, and the fibers are washed and then dried to give needle-like particulate powder of TiO2.nH2O. having a size of 5W40μm. Alternatively, the resultant powder is then heated at 850°C to give anatase type needle-like TiO2 particles, having a size of 1W10μm, and elongated in the direction of the axis (a). These neeld-like particles are then mixed with CaO, Ca(OH)2, CaCO3, etc. at an equimolar ratio, and the mixture is then calcined at 900°C or above to afford CaTiO3, as a needle-like, columnar or platey particles elongated in the crystallographic axial direction. The resultant CaTiO3 has improved magnetic characteristics as a raw material for sintering a dielectric of the particulate orientation.
COPYRIGHT: (C)1982,JPO&Japio
JP6910181A 1981-05-07 1981-05-07 Preparation of calcium titanate Pending JPS57183324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6910181A JPS57183324A (en) 1981-05-07 1981-05-07 Preparation of calcium titanate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6910181A JPS57183324A (en) 1981-05-07 1981-05-07 Preparation of calcium titanate

Publications (1)

Publication Number Publication Date
JPS57183324A true JPS57183324A (en) 1982-11-11

Family

ID=13392889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6910181A Pending JPS57183324A (en) 1981-05-07 1981-05-07 Preparation of calcium titanate

Country Status (1)

Country Link
JP (1) JPS57183324A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164800A (en) * 1988-12-19 1990-06-25 Otsuka Chem Co Ltd Metal titanate whisker and its production
JPH02167823A (en) * 1988-12-21 1990-06-28 Otsuka Chem Co Ltd Composition having dielectric or piezoelectric property

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164800A (en) * 1988-12-19 1990-06-25 Otsuka Chem Co Ltd Metal titanate whisker and its production
JPH02167823A (en) * 1988-12-21 1990-06-28 Otsuka Chem Co Ltd Composition having dielectric or piezoelectric property

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