Title:
PRODUCTION METHOD OF ZIRCONIA MICROPARTICLE
Document Type and Number:
Japanese Patent JP2008143733
Kind Code:
A
Abstract:
To provide a production method for easily obtaining a zirconica microparticle having a high crystallinity, a small particle diameter and a large specific surface area.
The production method sequentially comprises: a step of obtaining a melt containing, expressed in terms of molar percent on an oxide basis, 3-30% ZrO2, 10-55% RO (provided that R is at least one chosen from the group consisting of Ba, Sr, Ca, Mg and Zn) and 30-80% B2O3; a step of quenching the melt to obtain an amorphous substance; a step of heating the amorphous substance to obtain a deposit containing a zirconia crystal; and a step of separating the zirconia crystal from the deposit to obtain the zirconia microparticle.
Inventors:
BEPPU YOSHIHISA
INABA TADAYUKI
SUNAHARA KAZUO
INABA TADAYUKI
SUNAHARA KAZUO
Application Number:
JP2006331787A
Publication Date:
June 26, 2008
Filing Date:
December 08, 2006
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C01G25/02
Domestic Patent References:
| JPS529200B2 | 1977-03-14 | |||
| JPS62230610A | 1987-10-09 | |||
| JPS63195123A | 1988-08-12 | |||
| JPH01219014A | 1989-09-01 | |||
| JPH02279504A | 1990-11-15 | |||
| JPH04146987A | 1992-05-20 | |||
| JPH0986906A | 1997-03-31 | |||
| JP2001039716A | 2001-02-13 | |||
| JP2001253714A | 2001-09-18 | |||
| JP2004331492A | 2004-11-25 | |||
| JP2005535782A | 2005-11-24 | |||
| JP2006016236A | 2006-01-19 |
Foreign References:
| WO2006049197A1 | 2006-05-11 |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai