Claims
- 1. A magnetic transducer for use with a rotatable magnetic storage medium, comprising:
- a magnetic head for recording and/or sensing data on a magnetic storage medium when it is rotating at a first RPM; and
- a slider for supporting said magnetic head in close proximity to a major surface of said magnetic storage medium, said magnetic head formed on a surface of said slider, said slider including a contact surface comprising a polycrystalline material selected to have a low coefficient of friction, a high resistivity, and a nonlinear load versus friction characteristic, said slider thus having the characteristic that when provided with a negative external load, said contact surface is only in partial physical contact with said major surface when said medium is rotating below a second RPM, and wherein a sufficient triboattractive force is generated between said partial contact surface and said major surface when said medium rotates above said second RPM to cause substantially the entire of said contact surface to be in contact with said major surface, said second RPM being less than or equal to said first RPM, said slider further including a trailing edge with respect to a direction of rotation of said magnetic storage medium, said magnetic head formed on a face of said trailing edge.
- 2. A magnetic transducer as in claim 1 wherein said slider further comprises a triangular-shaped slider, an apex thereof defining a leading corner with respect to said direction of rotation of said magnetic storage medium, said trailing edge comprising the base thereof, said face being substantially normal to said major surface of said magnetic storage medium.
- 3. A magnetic transducer as in claim 1 wherein said slider further comprises a rectangular-shaped slider.
- 4. A magnetic transducer as in claim 1 wherein said polycrystalline material is selected from the group consisting of silicon carbide, zirconium oxide, aluminum oxide, SIALON and cubic boron nitride.
- 5. A magnetic transducer as in claim 1 wherein said polycrystalline material exhibits a high thermal conductivity.
- 6. A magnetic transducer for use with a rotatable magnetic storage medium, comprising:
- a magnetic head for recording and/or sensing data on a magnetic storage medium when rotating at a first RPM; and
- a slider for supporting said magnetic head in close proximity to a major surface of said magnetic storage medium, said magnetic head formed on a surface of said slider, said slider including a contact surface comprising an amorphous material selected to have a low coefficient of friction, a high resistivity, and a nonlinear load versus friction characteristic, said slider thus having the characteristic that when provided with a negative external load, said contact surface is only in partial physical contact with said major surface when said medium is rotating below a second RPM, and wherein a sufficient triboattractive force is generated between said partial contact surface and said major surface when said medium rotates above said second RPM to cause substantially the entire of said contact surface to come into contact with said major surface, said second RPM being less than or equal to said first RPM.
- 7. A magnetic transducer as in claim 6 wherein said amorphous material exhibits a high thermal conductivity.
Parent Case Info
This is a continuation of application Ser. No. 08/447,218 filed May 25, 1995, now abandoned which is a continuation of application Ser. No. 08/210,190 filed on Mar. 17, 1994, now abandoned, which is a divisional of application Ser. No. 07/814,124 filed on Dec. 24, 1991, now U.S. Pat. No. 5,305,165.
US Referenced Citations (10)
Foreign Referenced Citations (7)
Number |
Date |
Country |
0218811A1 |
Jul 1986 |
EPX |
0227361A3 |
Dec 1986 |
EPX |
58-119541 |
Jul 1983 |
JPX |
60-074105 |
Apr 1985 |
JPX |
62-024420 |
Feb 1987 |
JPX |
62-214510 |
Sep 1987 |
JPX |
62-267921 |
Nov 1987 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Brezoczky et al, "Triboattraction: Friction Under Negative Load", Feb. 1989, pp. 1141-1145. |
Divisions (1)
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Number |
Date |
Country |
Parent |
814124 |
Dec 1991 |
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Continuations (2)
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Number |
Date |
Country |
Parent |
449218 |
May 1995 |
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Parent |
210190 |
Mar 1994 |
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