Title:
METHOD FOR PREPARING HIGH-DENSITY MAGNESIA-ALUMINA SPINEL CERAMIC BY LOW-TEMPERATURE PRESSURELESS SINTERING
Document Type and Number:
WIPO Patent Application WO/2023/142185
Kind Code:
A1
Abstract:
A method for preparing high-density magnesia-alumina spinel ceramic by low-temperature pressureless sintering, comprising: using MgAl2O4 powder as a raw material powder, adding calcium phosphate as a sintering additive and controlling the element Ca in the calcium phosphate to not exceed 500 ppm of the total mass of the raw material powder, then performing pressureless sintering, thereby preparing high-density magnesia-alumina spinel ceramic; the pressureless sintering comprises normal pressure sintering or vacuum sintering.
Inventors:
ZHANG JIAN (CN)
LIU MENGWEI (CN)
HAN DAN (CN)
LI GUI (CN)
ZHAO JIN (CN)
WANG SHIWEI (CN)
LIU MENGWEI (CN)
HAN DAN (CN)
LI GUI (CN)
ZHAO JIN (CN)
WANG SHIWEI (CN)
Application Number:
PCT/CN2022/076653
Publication Date:
August 03, 2023
Filing Date:
February 17, 2022
Export Citation:
Assignee:
SHANGHAI INST CERAMICS CAS (CN)
International Classes:
C04B35/443; C04B35/622; C04B35/645
Domestic Patent References:
| WO2022015688A1 | 2022-01-20 |
Foreign References:
| CN107721406A | 2018-02-23 | |||
| CN107473730A | 2017-12-15 | |||
| CN109081700A | 2018-12-25 | |||
| CN112250461A | 2021-01-22 | |||
| KR20180063744A | 2018-06-12 | |||
| US20100056357A1 | 2010-03-04 |
Attorney, Agent or Firm:
HANQIAO PATENT (CN)
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