JPS6479009A - Aluminium nitride powder - Google Patents
Aluminium nitride powderInfo
- Publication number
- JPS6479009A JPS6479009A JP23429487A JP23429487A JPS6479009A JP S6479009 A JPS6479009 A JP S6479009A JP 23429487 A JP23429487 A JP 23429487A JP 23429487 A JP23429487 A JP 23429487A JP S6479009 A JPS6479009 A JP S6479009A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- aln powder
- adsorbed water
- content
- hydr
- 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
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- Ceramic Products (AREA)
Abstract
PURPOSE:To obtain easily sinterable AlN powder providing easily a sintered body of high density and high heat conductivity by adjusting raw materials and reaction conditions so as to regulate each content of O which is in three kinds of existing form, i.e., adsorbed water, surface (hydr)oxide, and solid solution, to each specified range. CONSTITUTION:Adsorbed water is removed from at atomized Al powder having, for example, 7.8mu mean particle size and about 0.30wt.% O-content by heating the Al powder at about 300 deg.C for about 1hr, and AlN powder is produced by heating said powder in N2 atmosphere of about 1atm. at about 1,200 deg.C for about 1hr. Obtd. AlN powder is crushed coarsely and intermediately to AlN powder having about 5mu mean particle size, which is further pulverized to obtain AlN powder for a raw material for this invention having O-contents in three kinds of existing form, i.e., adsorbed water, surface (hydr)oxide, and solid solution, each adjusted to specified range. If necessary, 0.1-5wt.% (expressed in terms of metal) sintering aid (e.g. Y2O3) and a binder are added to said AlN powder. Thus, AlN powder having <=2mu mean particle size and <=0.3wt.% O- content existing in the form of solid soln., and 0.85-1.7wt.% O-content existing in the form of surface adsorbed water or surface (hydr)oxide, is obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23429487A JPS6479009A (en) | 1987-09-18 | 1987-09-18 | Aluminium nitride powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23429487A JPS6479009A (en) | 1987-09-18 | 1987-09-18 | Aluminium nitride powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6479009A true JPS6479009A (en) | 1989-03-24 |
Family
ID=16968737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23429487A Pending JPS6479009A (en) | 1987-09-18 | 1987-09-18 | Aluminium nitride powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6479009A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02208212A (en) * | 1989-02-06 | 1990-08-17 | Denki Kagaku Kogyo Kk | Readily calcinable aluminum nitride powder and production thereof |
| JPH03177308A (en) * | 1989-12-07 | 1991-08-01 | Shin Etsu Chem Co Ltd | High purity aluminum nitride powder and its manufacturing method |
-
1987
- 1987-09-18 JP JP23429487A patent/JPS6479009A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02208212A (en) * | 1989-02-06 | 1990-08-17 | Denki Kagaku Kogyo Kk | Readily calcinable aluminum nitride powder and production thereof |
| JPH03177308A (en) * | 1989-12-07 | 1991-08-01 | Shin Etsu Chem Co Ltd | High purity aluminum nitride powder and its manufacturing method |
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