公开(公告)号：US3814591A

公开(公告)日：1974-06-04

申请号：US26778572

申请日：1972-06-30

Applicant: HONEYWELL INC

Inventor： HOLMEN J ,  ULMER R

IPC: C25D3/56 ,  B32B15/00

CPC classification number: C25D3/562 ,  Y10S428/926 ,  Y10S428/928 ,  Y10S428/935 ,  Y10T428/12104 ,  Y10T428/12472 ,  Y10T428/12486 ,  Y10T428/12729 ,  Y10T428/1291 ,  Y10T428/12917 ,  Y10T428/12931

Abstract: A PLATED WIRE MEMORY UNIT WHICH COMBINES INCRESED READ-WRITE SPEED WITH GOOD NON-DESTRUCTIVE READOUT (NDRO) PROPERTIES INCLUDES A NON-MAGNETIC WIRE SUBSTRATE, ANON-MAGNETIC LAYER OF CONTROLLED ROUGHNESS OVERLAYING THE SUBSTRATE, A THIN LAYER OF MATERIAL SELECTED FROM A GROUP CONSISTING OF COBALT, NICKEL, IRON OR MAGNETIC ALLOYS THEREOF OVERLAYING THE NON-MAGNETIC LAYER AND A ZERO MAGNETOSTRICTIVE MAGNETIC LAYER OF NICKEL-IRON-COBALT ALLOY OVERLAYING THE THIN LAYER. THE FINAL NICKEL-IRON-COBALT ALLOY ZERO MAGNETOSTRICTIVE MAGNETIC LAYER IS ELECTRODEPOSITION FRON AN ELECTROLYTIC BATH CONTAINING AN AROMATIC SULFONIC ACID OR A SUBSTITUTED AROMATIC SULFONIC ACID ADDITIVE.