Surface treatment of magnetic recording heads
Abstract
Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances. 22 figs.
- Inventors:
- Issue Date:
- Research Org.:
- University of California
- Sponsoring Org.:
- USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- OSTI Identifier:
- 675838
- Patent Number(s):
- 5,838,522
- Application Number:
- PAN: 8-794,672; CNN: Grant MSS-8996309
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 17 Nov 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ION IMPLANTATION; SURFACE COATING; TRIBOLOGY; RECORDING SYSTEMS; PLASMA; SURFACE PROPERTIES; HARDNESS
Citation Formats
Komvopoulos, K, Brown, I G, Wei, B, Anders, S, Anders, A, and Bhatia, C S. Surface treatment of magnetic recording heads. United States: N. p., 1998.
Web.
Komvopoulos, K, Brown, I G, Wei, B, Anders, S, Anders, A, & Bhatia, C S. Surface treatment of magnetic recording heads. United States.
Komvopoulos, K, Brown, I G, Wei, B, Anders, S, Anders, A, and Bhatia, C S. Tue .
"Surface treatment of magnetic recording heads". United States.
@article{osti_675838,
title = {Surface treatment of magnetic recording heads},
author = {Komvopoulos, K and Brown, I G and Wei, B and Anders, S and Anders, A and Bhatia, C S},
abstractNote = {Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances. 22 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {11}
}