Title:
ALUMINOUS PORCELAIN AND CERAMIC HEATER
Document Type and Number:
WIPO Patent Application WO/2020/022425
Kind Code:
A1
Abstract:
An aluminous porcelain that comprises alumina crystal grains, zirconia crystal grains, Ti, Mg and Si, wherein: the total content of Ti, Mg and Si, respectively in terms of TiO2, MgO and SiO2, is 1.4 mass% or more; when zirconia constituting the zirconia crystal grains is represented by ZrO2, in the zirconia crystal grains, the content of rare earth element(s) in terms of oxide(s) is 2 mol% or less relative to ZrO2; the zirconia crystal grains contain single grains having a maximum length of 1 μm or longer and/or aggregated grains having a maximum length of 1 μm or longer; and the sum of the ratios of the single grains having a maximum length of 1 μm or longer and the aggregated grains having a maximum length of 1 μm or longer is 50 vol% or more of the total zirconia crystal grains.
Inventors:
WANG YUCONG (JP)
Application Number:
PCT/JP2019/029205
Publication Date:
January 30, 2020
Filing Date:
July 25, 2019
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
C04B35/119; H01B3/12; H05B3/14
Foreign References:
| JP2005075659A | 2005-03-24 | |||
| JP2007269524A | 2007-10-18 | |||
| JPH03223157A | 1991-10-02 | |||
| JP2006122634A | 2006-05-18 | |||
| JPH03223157A | 1991-10-02 | |||
| JP2007269524A | 2007-10-18 |
Other References:
See also references of EP 3831796A4
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