Glassimetal Technology Inc.

Apple Inc.

Danielle Duggins

William L Johnson

Marios D Demetriou

Jong Hyun Na

Maximilien E Launey

Michael Floyd

Glenn Garrett

Oscar Abarca

Chase Crewdson

David S Lee

Kyung-Hee Han

Maximilien Launey

The disclosure is directed to Ni&#x2014;P&#x2014;Si alloys bearing Mn and optionally Cr, Mo, Nb, and Ta that are capable of forming a metallic glass, and more particularly demonstrate critical rod diameters for glass formation greater than 1 mm and as large as 5 mm or larger.

Bulk nickel-phosphorus-silicon glasses bearing manganese

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.

Bulk platinum-copper-phosphorus glasses bearing boron, silver, and gold

A fluxing method is disclosed by which the melt of aluminum-contaminated Ni-based glass-forming alloys is fluxed using a fluxing agent based on boron and oxygen in order to reverse the adverse effects of aluminum impurities on the glass-forming ability and toughness.

Fluxing method to reverse the adverse effects of aluminum impurities in nickel-based glass-forming alloys

Ni&#x2014;Cr&#x2014;Nb&#x2014;P&#x2014;B alloys and metallic glasses are provided, where Nb and B are varied such as to achieve alloys with good glass forming ability that form metallic glasses which may exhibit unexpectedly high strength and/or high thermal stability of the supercooled liquid. Specifically, the alloys of the current disclosure are capable of forming metallic glasses and have critical rod diameters of at least 3 mm, while the metallic glasses exhibit yield strength greater than 2550 MPa and stability of the supercooled liquid of at least 45&#xb0; C.

Bulk nickel-chromium-phosphorus glasses bearing niobium and boron exhibiting high strength and/or high thermal stability of the supercooled liquid

Ni&#x2014;Fe, Ni&#x2014;Co, and Ni&#x2014;Cu-based bulk metallic glass forming alloys are provided. The alloys have critical rod diameters of at least 1 mm and in some instances at least 11 mm. The alloys have composition according to NiXCrNbPB, wherein X is at least one of Fe, Co, and Cu, the atomic percent X (Fe and/or Co and/or Cu) ranges from 0.5 to 30, the atomic percent of Cr ranges from 2 to 15, the atomic percent of Nb ranges from 1 to 5, the atomic percent of P ranges from 14 to 19, the atomic percent of B ranges from 1 to 5, and the balance is Ni.

Bulk nickel-iron-based, nickel-cobalt-based and nickel-copper based glasses bearing chromium, niobium, phosphorus and boron

The disclosure is directed to Ni&#x2014;Cr&#x2014;P eutectic alloys bearing Nb as substitution for Cr that are capable of forming metallic glasses with critical rod diameter of at least 1 mm or more. With further minority addition of Si as replacement for P, such alloys are capable of forming metallic glasses with critical rod diameters as high as 10 mm or more. Specifically, Ni-based compositions with a Cr content of between 5 and 14 atomic percent, Nb content of between 3 and 4 atomic percent, P content of between 17.5 and 19 atomic percent, and Si content of between 1 and 2 atomic percent, were capable of forming bulk metallic glass rods with diameters as large as 6 mm or larger.

Bulk nickel-based glasses bearing chromium, niobium, phosphorus and silicon

The present disclosure is directed to Ni&#x2014;P&#x2014;B alloys and glasses containing small fractions of Nb and Ta and optionally Mn. Over a specific range, the alloys are capable of forming bulk metallic glasses having critical casting thickness in excess of 1 mm. In one embodiment, compositions with a Mn content of between 3 and 4 atomic percent, Nb content of about 3 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger. In another embodiment, Ni-based compositions with a Mn content of between 5 and 7 atomic percent, Ta content of between 1 and 2 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger.

Bulk nickel-phosphorus-boron glasses bearing manganese, niobium and tantalum

The disclosure is directed to Ni-based glass-forming alloys bearing Cr and P, wherein the Cr atomic concentration is greater than 7 percent and the P atomic concentration is greater than 12 percent, and methods of fluxing such alloys such that their glass-forming ability is enhanced with respect to the glass-forming ability associated with their unfluxed state.

Fluxing methods for nickel based chromium and phosphorus bearing alloys to improve glass forming ability

The disclosure is directed to Ni&#x2014;P&#x2014;B alloys bearing Mn and optionally Cr and Mo that are capable of forming a metallic glass, and more particularly metallic glass rods with diameters at least 1 mm and as large as 5 mm or larger. The disclosure is further directed to Ni&#x2014;Mn&#x2014;Cr&#x2014;Mo&#x2014;P&#x2014;B alloys capable of demonstrating a good combination of glass forming ability, strength, toughness, bending ductility, and corrosion resistance.

Growing community of inventors

Garden Grove, CA, United States of America

Danielle Duggins