Title:
PRODUCTION OF SLIDER MATERIAL FOR TIO2-BAO-MGO MAGNETIC HEAD
Document Type and Number:
Japanese Patent JPH02192455
Kind Code:
A
Abstract:
PURPOSE: To obtain the subject material having white color, dense texture and improved sliding properties by specifically selecting a TiO2-BaO-MgO raw material composed of TiO2 phase, Ba2Ti9O20.2MgTi2O5 phase and MgTi2O5 phase, calcining the raw material and hot-pressing the calcined product under hydrostatic pressure under a specific condition.
CONSTITUTION: A TiO2-BaO-MgO raw material is selected and calcined in air to obtain a calcined product composed of ≥20% of Ba2Ti9O20.2MgTi2O5 phase and remaining parts of TiO2 phase and MgTi2O5 phase. The calcined product is hot-pressed under hydrostatic pressure of ≥800kg/cm2 at ≥1150°C in a gaseous atmosphere consisting of a mixture of an inert gas and ≥2% of O2.
Inventors:
HAYAMA KIYOSHI
GOTO TATSUYA
OKAMOTO OSAMU
GOTO TATSUYA
OKAMOTO OSAMU
Application Number:
JP1071589A
Publication Date:
July 30, 1990
Filing Date:
January 19, 1989
Export Citation:
Assignee:
TOTO LTD
International Classes:
C04B35/46; G11B5/60; (IPC1-7): C04B35/46; G11B5/60
Domestic Patent References:
| JPS59146977A | 1984-08-23 | |||
| JPS63311701A | 1988-12-20 |
Attorney, Agent or Firm:
Minoru Nakamura (8 outside)