JPS6428273A - Production of high-purity magnesium oxide sintered compact - Google Patents
Production of high-purity magnesium oxide sintered compactInfo
- Publication number
- JPS6428273A JPS6428273A JP62185698A JP18569887A JPS6428273A JP S6428273 A JPS6428273 A JP S6428273A JP 62185698 A JP62185698 A JP 62185698A JP 18569887 A JP18569887 A JP 18569887A JP S6428273 A JPS6428273 A JP S6428273A
- Authority
- JP
- Japan
- Prior art keywords
- mgo
- moldings
- sintered compact
- purity
- fluoride
- 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
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE:To produce a dense and high-purity MgO sintered compact at relatively low burning temperature, by adding a fluoride or chloride to a metal oxide or metal hydroxide, calcining the blend, burying MgO moldings into the resultant calcined powder and burning the composite. CONSTITUTION:A fluoride (e.g. MgF2, AlF3, etc.) or chloride (e.g. MgCl2 or AlCl3) is added to a metal oxide (e.g. MgO, Al2O3) or metal hydroxide [e.g. Mg(OH)2, Al(OH)3] and the blend is calcined at decomposition temperature or below of the above-mentioned additives. MgO moldings are buried in the resultant calcined powder and the composite is burned. The fluoride or chloride contained in calcined powder is decomposed at high temperature during burning to keep surroundings of moldings to be burned to fluorine atmosphere or chlorine atmosphere and promote sintering of the MgO moldings. Consequently, dense and high-purity MgO sintered compact can be obtained by relatively low burning temperature. Since such additives as left as impurity are not added, lowering of the purity does not occur and a special equipment or operation such as hot press is also unnecessary.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62185698A JPS6428273A (en) | 1987-07-24 | 1987-07-24 | Production of high-purity magnesium oxide sintered compact |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62185698A JPS6428273A (en) | 1987-07-24 | 1987-07-24 | Production of high-purity magnesium oxide sintered compact |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428273A true JPS6428273A (en) | 1989-01-30 |
Family
ID=16175303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62185698A Pending JPS6428273A (en) | 1987-07-24 | 1987-07-24 | Production of high-purity magnesium oxide sintered compact |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428273A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100430311C (en) * | 2000-10-16 | 2008-11-05 | 住友化学工业株式会社 | Method for preparing composite metal oxide powder |
JP2009062267A (en) * | 2007-08-10 | 2009-03-26 | Ube Material Industries Ltd | Magnesium oxide fired product powder |
US8072143B2 (en) | 2007-03-19 | 2011-12-06 | Panasonic Corporation | Plasma display panel and its manufacturing method |
-
1987
- 1987-07-24 JP JP62185698A patent/JPS6428273A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100430311C (en) * | 2000-10-16 | 2008-11-05 | 住友化学工业株式会社 | Method for preparing composite metal oxide powder |
US8072143B2 (en) | 2007-03-19 | 2011-12-06 | Panasonic Corporation | Plasma display panel and its manufacturing method |
JP2009062267A (en) * | 2007-08-10 | 2009-03-26 | Ube Material Industries Ltd | Magnesium oxide fired product powder |
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