Glassimetal Technology Inc.

Apple Inc.

Glassimental Technology, Inc.

Maximilien E Launey

William L Johnson

Marios D Demetriou

Jong Hyun Na

Glenn Garrett

Danielle Duggins

Kyung-Hee Han

Michael Floyd

Oscar Abarca

Chase Crewdson

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 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

Pd&#x2014;Cu&#x2014;P metallic glass-forming alloy compositions and metallic glasses comprising at least one of Ag, Au, and Fe are provided, wherein the alloys demonstrate improved glass forming ability, as compared to Pd&#x2014;Cu&#x2014;P alloys free of Ag, Au, and Fe, and are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 26 mm or larger.

Bulk palladium-copper-phosphorus glasses bearing silver, gold, and iron

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 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;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.

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

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

A Ni-based bulk metallic glass forming alloy is provided. The alloy includes NiCrNbPB, where an atomic percent of chromium (Cr) a ranges from 3 to 13, an atomic percent of niobium (Nb) b is determined by x&#x2212;y*a, where x ranges from 3.8 to 4.2 and y ranges from 0.11 to 0.14, an atomic percent of phosphorus (P) c ranges from 16.25 to 17, an atomic percent of boron (B) d ranges from 2.75 to 3.5, and the balance is nickel (Ni), and where the alloy is capable of forming a metallic glass object having a lateral dimension of at least 6 mm, where the metallic glass has a stress intensity factor at crack initiation when measured on a 3 mm diameter rod containing a notch with length between 1 and 2 mm and root radius between 0.1 and 0.15 mm, the stress intensity factor being at least 70 MPa m.

Bulk nickel-based chromium and phosphorus bearing metallic glasses with high toughness

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&#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.

Bulk nickel-phosphorus-boron glasses bearing manganese

Ni&#x2014;Fe&#x2014;Si&#x2014;B and Ni&#x2014;Fe&#x2014;Si&#x2014;B&#x2014;P metallic glass forming alloys and metallic glasses are provided. Metallic glass rods with diameters of at least one, up to three millimeters, or more can be formed from the disclosed alloys. The disclosed metallic glasses demonstrate high yield strength combined with high corrosion resistance, while for a relatively high Fe contents the metallic glasses are ferromagnetic.

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Pasadena, CA, United States of America

Maximilien E Launey