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Obtaining Nonmagnetostrictive Magnetic Coatings

IP.com Disclosure Number: IPCOM000093142D
Original Publication Date: 1967-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Le Mehaute, C: AUTHOR

Abstract

An electrolyte containing selenium is provided for the electrodeposition of a magnetic thin film for storage applications. The electrolyte includes: NiSO(4), 7H(2)O 250g/l FeSO(4), 7H(2)O 4g/l H(3) BO(3) 25g/l Saccharin 0, 8g/l Sodium Laurylsulfate 0, 5g/l 40% H(2) Se O(4) 0, 3g/l pH 2, 7.

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Obtaining Nonmagnetostrictive Magnetic Coatings

An electrolyte containing selenium is provided for the electrodeposition of a magnetic thin film for storage applications. The electrolyte includes: NiSO(4), 7H(2)O 250g/l

FeSO(4), 7H(2)O 4g/l

H(3) BO(3) 25g/l

Saccharin 0, 8g/l

Sodium Laurylsulfate 0, 5g/l

40% H(2) Se O(4) 0, 3g/l

pH 2, 7.

In electrodepositing a magnetic thin film from this electrolyte, the bath temperature is adjusted to 19.5 degrees C. Initially, a potential of 1050 millivolts is applied as measured between the cathode and a the electrodeposition reaction is completed.

The selenium-based components favors essentially zero magnetostriction in the resulting magnetic thin films.

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