Glassimetal Technology Inc.

Apple Inc.

Kyung-Hee Han

William L Johnson

Marios D Demetriou

Jong Hyun Na

Maximilien E Launey

Glenn Garrett

Chase Crewdson

Georg Kaltenboeck

Danielle Duggins

Oscar Abarca

Maximilien Launey

Ni—Cr—Nb—P—B alloys optionally bearing Si and metallic glasses formed from said alloys are disclosed, where the alloys have a critical rod diameter of at least 5 mm and the metallic glasses demonstrate a notch toughness of at least 96 MPa m.

Bulk nickel-niobium-phosphorus-boron glasses bearing low fractions of chromium and exhibiting high toughness

The disclosure provides Fe&#x2014;Cr&#x2014;Ni&#x2014;Mo&#x2014;P&#x2014;C&#x2014;B metallic glass-forming alloys and metallic glasses that have a high glass forming ability along with a high thermal stability of the supercooled liquid against crystallization.

Tough iron-based glasses with high glass forming ability and high thermal stability

The disclosure provides Zr&#x2014;Ti&#x2014;Cu&#x2014;Ni&#x2014;Al metallic glass-forming alloys and metallic glasses that have a high glass forming ability along with a high thermal stability of the supercooled liquid against crystallization.

Zirconium-titanium-copper-nickel-aluminum glasses with high glass forming ability and high thermal stability

The present disclosure provides Au-based alloys comprising Si capable of forming metallic glass matrix composites, and metallic glass matrix composites formed thereof. The Au-based metallic glass matrix composites according to the present disclosure comprise a primary-Au crystalline phase and a metallic glass phase and are free of any other phase. In certain embodiments, the metallic glass matrix composites according to the present disclosure satisfy the 18-Karat Gold Alloy Hallmark.

Gold-based metallic glass matrix composites

The disclosure is directed to Zr&#x2014;Co&#x2014;Ni&#x2014;Al alloys that optionally comprise Ti and are capable of forming metallic glasses having a combination of high glass forming ability and high reflectivity. Compositional regions in the Zr&#x2014;Co&#x2014;Ni&#x2014;Al and Zr&#x2014;Ti&#x2014;Co&#x2014;Ni&#x2014;Al alloys are disclosed where the metallic glass-forming alloys demonstrate a high glass forming ability while the metallic glasses formed from the alloys exhibit a high reflectivity. The metallic glass-forming alloys demonstrate a critical plate thickness of at least 2 mm, while the metallic glasses formed from the alloys demonstrate a CIELAB L* value of at least 78.

Zirconium-cobalt-nickel-aluminum glasses with high glass forming ability and high reflectivity

The disclosure provides Pt&#x2014;P metallic glass-forming alloys and metallic glasses comprising at least two of Ni, Pd, Ag, and Au and optionally Si as well as potentially other elements, where the weight fraction of Pt is between 74 and 91 percent, and where the at least two of Ni, Pd, Ag, and Au contribute to increase the critical rod diameter of the alloy in relation to a Pt&#x2014;P alloy free of Ni, Pd, Ag, and Au or a Pt&#x2014;P alloy comprising only one of these elements. In embodiments where the PT850 hallmark is satisfied, alloys according to the disclosure are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 30 mm or larger.

Bulk platinum-phosphorus glasses bearing nickel, palladium, silver, and gold

The disclosure provides Pt&#x2014;Cu&#x2014;P glass-forming alloys bearing at least one of B, Ag, and Au, where each of B, Ag, and Au can contribute to improve the glass forming ability of the alloy in relation to the alloy that is free of these elements. The alloys are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 50 mm or larger. The alloys and metallic glasses can satisfy platinum jewelry hallmarks PT750, PT800, PT850, and PT900.

Growing community of inventors

Pasadena, CA, United States of America

Kyung-Hee Han