JPS648229A - Magnetic al composite material having regulated coefficient of thermal expansion - Google Patents
Magnetic al composite material having regulated coefficient of thermal expansionInfo
- Publication number
- JPS648229A JPS648229A JP16459287A JP16459287A JPS648229A JP S648229 A JPS648229 A JP S648229A JP 16459287 A JP16459287 A JP 16459287A JP 16459287 A JP16459287 A JP 16459287A JP S648229 A JPS648229 A JP S648229A
- Authority
- JP
- Japan
- Prior art keywords
- thermal expansion
- coefft
- powder
- composite material
- magnetic
- 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
- Powder Metallurgy (AREA)
Abstract
PURPOSE:To arbitrarily regulate the coefft. of thermal expansion of a magnetic Al composite material while maintaining the desired magnetic characteristics, by blending powder of a ferromagnetic body with Al (alloy) powder and powder of a metal for regulating the coefft. of thermal expansion so as to satisfy prescribed equalities and by molding the resulting mixture. CONSTITUTION:The blending rate of powder of a ferromagnetic body is set according to the desired magnetic performance. Vf vol.% of the powder is blended with Va vol.% Al (alloy) powder and Vz vol.% powder of a metal for regulating the coefft. of thermal expansion so as to satisfy equalities Af.Vf+Aa.Va+Az.Vz=A-0.2-A+0.2 and Vf+Va+Vz=100 [where A is the desired coefft. of thermal expansion of a produced Al composite material, Af is the coefft. of thermal expansion of the ferromagnetic body, Aa is the coefft. of thermal expansion of the Al (alloy) and Az is the coefft. of thermal expansion of the metal for regulating the coefft. of thermal expansion]. The resulting mixture is press-molded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16459287A JPS648229A (en) | 1987-06-30 | 1987-06-30 | Magnetic al composite material having regulated coefficient of thermal expansion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16459287A JPS648229A (en) | 1987-06-30 | 1987-06-30 | Magnetic al composite material having regulated coefficient of thermal expansion |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648229A true JPS648229A (en) | 1989-01-12 |
Family
ID=15796111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16459287A Pending JPS648229A (en) | 1987-06-30 | 1987-06-30 | Magnetic al composite material having regulated coefficient of thermal expansion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648229A (en) |
-
1987
- 1987-06-30 JP JP16459287A patent/JPS648229A/en active Pending
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