Ni and Cu free Pd-based metallic glasses

Details Ni and Cu free Pd-based metallic glasses Ni and Cu free Pd-based metallic glasses

2008-07-14

2011-11-29

Wyszomierski, George (Department: 1733)

Metal treatment

Stock

Amorphous, i.e., glassy

C148S430000, C420S463000

Reexamination Certificate

active

08066827

ABSTRACT:
The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.

REFERENCES:
patent: 4995923 (1991-02-01), Mizumoto et al.
patent: 7582172 (2009-09-01), Schroers et al.
ASM Handbook, vol. 2, “Preparation and Characterization of Pure Metals”, G.T. Murray et al., pp. 1093-1097, ASM International, 1990.
Chen, H.S., “The Glass Transition Temperature in Glassy Alloys: Effects of Atomic Sizes and The Heats of Mixing,” ACTA METALLURGICA, vol. 22, Jul. 1974, pp. 897-900.
Chen, H.S., et al., “Formation, Stability and Structure of Palladium-Silicon Based Alloy Glasses,” ACTA METALLURGICA, vol. 17, Aug. 1969, pp. 1021-1031.
Liu, Li, et al., “Formation of Bulk Pd-Cu-Si-P Glass with Good Mechanical Properties,”Materials Transactions, vol. 46, No. 2 (2005), pp. 376 to 378.
M. Dutoit and H.S. Chen, “Frequency and temperature dependence of ulrasonic attenuation in glassy Pd-Si-based metal alloys,”Appl. Phys. Lett., vol. 23, No. 7, Oct. 1, 1973, pp. 357-358.

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