Browse Prior Art Database

NiFeCr Magnetic Material

IP.com Disclosure Number: IPCOM000069396D
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Gardner, RA Head, NL Phipps, PB [+details]

Abstract

To make a thin-film magnetic material, a nickel-iron-chromium alloy of approximately 52-62% Ni, 32-42% Fe, and 6-8% Cr can be RF sputter deposited at approximately 500 watts RF power, with a bias applied to the substrate and approximately 20 microns of argon pressure. The films were deposited on glass substrates to a thickness of approximately .012 inch. The resultant films had an H(c) of approximately 0.3-1.9 oe, an H(k) of approximately 0.8-3.0 oe, and a 4PiM(s) of 10.0--13.1 K gauss.