Title :
Effect of head slider DLC overcoats produced by various deposition techniques on the interface failure
Author :
Zhao, Zheming ; Bhushan, Bharat
Author_Institution :
Seagate Technol., Milpitas, CA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
Diamond-like carbon (DLC) coatings were deposited on Al2O3-TiC substrate of head sliders by filtered cathodic arc (FCA), ion beam (IB), electron cyclotron resonance chemical vapor deposition (ECR-CVD) and sputtering (SP) with thicknesses of 5, 10 and 20 nm. Drag and CSS tests were performed using a commercial laser-textured disk. The interface failures, correlated to tribological properties of coatings on the head slider and disk surfaces, are discussed. The TB coatings show the longest interface durability whereas sputtered DLC coatings show the lowest interface durability. However, if DLC coatings on the head slider and disk surfaces are deposited with the compatible elastic modulus, based on mechanical characterization it is believed that FCA and ECR-CVD may also hold a promise for superior tribological performance
Keywords :
CVD coatings; carbon; drag; elastic moduli; magnetic heads; plasma deposited coatings; sputtered coatings; vapour deposited coatings; wear resistant coatings; Al2O3-TiC; Al2O3-TiC substrate; C; CSS; diamond-like carbon coating; drag; elastic modulus; electron cyclotron resonance chemical vapor deposition; filtered cathodic arc deposition; head-disk interface failure; interface durability; ion beam deposition; laser textured disk; magnetic recording head slider; mechanical characteristics; sputtering; tribological properties; Cascading style sheets; Chemical vapor deposition; Coatings; Cyclotrons; Diamond-like carbon; Electron beams; Ion beams; Resonance; Sputtering; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
