Method for determining the quality of a lubricant layer on a mag

Details Method for determining the quality of a lubricant layer on a mag Method for determining the quality of a lubricant layer on a mag

1991-06-05

1992-09-01

Berman, Jack I.

Radiant energy

Inspection of solids or liquids by charged particles

Methods

250305, 250306, 250310, H01J 3700

Patent

active

051441349

ABSTRACT:
The quality of a lubricant layer formed on a surface of a magnetic recording medium is determined by exposing the lubricant molecules of the lubricant layer to a radiation source for x-ray photoelectron spectroscopy while varying the photoelectron drawing angle. The number of emitted electrons is determined and, from this, the degree of orientation and the quality of the lubricant layer is found.

REFERENCES:
patent: 4358680 (1982-11-01), Read
patent: 4752685 (1988-06-01), Shiokawa et al.
patent: 4777364 (1988-10-01), Sartore
patent: 4857230 (1989-08-01), Pierre
patent: 5055679 (1991-10-01), Ninomiya et al.

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