C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 45/04 (2006.01) C22C 45/02 (2006.01) G01V 15/00 (2006.01) G08B 13/24 (2006.01) H01F 1/153 (2006.01)
Patent
CA 2145745
The present invention discloses a process for enhancing the harmonic output of a marker comprising the steps of providing an amorphous alloy having a composition (Fe1-xNix)aMb(B1-ySiy)c wherein "x" ranges from about 0.2 to about 0.9, "y" ranges from 0 up to about 0.5, "a" is between about 60 and about 90 atomic %, "b" is between about 0.1 to about 10 atomic %, "c", is between about 0.1 to about 30 atomic percent, and M is at least one metal selected from the group consisting of Mo, Cr, Hf, Nb, Ta, Ti, V, W, and Zr, the amorphous alloy having at least two crystallization temperatures, a first crystallization temperature at which a nanocrystalline phase is formed, and a second crystallization temperature at which a second crystal- line phase is formed; annealing the amorphous alloy at a temperature between the first and the second crystallization tem- peratures for a time sufficient to increase at least one harmonic characteristic of the element. Harmonic markers produced thereby are also disclosed.
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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