California Institute of Technology

Glassimetal Technology Inc.

Apple Inc.

Crucible Intellectual Property, LLC

Glassimental Technology, Inc.

Marios D Demetriou

William L Johnson

Jong Hyun Na

Joseph P Schramm

Glenn Garrett

Maximilien E Launey

Michael Floyd

Georg Kaltenboeck

Danielle Duggins

David S Lee

Kyung-Hee Han

Jan Schroers

Oscar Abarca

Chase Crewdson

Christopher Thomas Veazey

Scott N Roberts

Choong Paul Kim

Robert Dale Conner

Aaron Wiest

Xiao Liu

LeRoy A Dunning

Konrad Samwer

John S Harmon

Chris Veazey

Douglas C Hofmann

Gang Duan

Montague Rittgers

Henry Kozachkov

Samuel T Kim

Nikolaj Wolfson

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

Nickel based alloys capable of forming bulk metallic glass are provided. The alloys include Ni&#x2014;Cr&#x2014;Si&#x2014;B compositions, with additions of P and Mo, and are capable of forming a metallic glass rod having a diameter of at least 1 mm. In one example of the present disclosure, the Ni&#x2014;Cr&#x2014;Mo&#x2014;Si&#x2014;B&#x2014;P composition includes about 4.5 to 5 atomic percent of Cr, about 0.5 to 1 atomic percent of Mo, about 5.75 atomic percent of Si, about 11.75 atomic percent of B, about 5 atomic percent of P, and the balance is Ni, and wherein the critical metallic glass rod diameter is between 2.5 and 3 mm and the notch toughness between 55 and 65 MPa m.

Bulk nickel-silicon-boron glasses bearing chromium

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

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 an apparatus comprising feedback-assisted control of the heating process in rapid discharge heating and forming of metallic glass articles.

Feedback-assisted rapid discharge heating and forming of metallic glasses

A rapid discharge heating and forming apparatus is provided. The apparatus includes a source of electrical energy and at least two electrodes configured to interconnect the source of electrical energy to a metallic glass sample. The apparatus also includes a shaping tool disposed in forming relation to the metallic glass sample. The source of electrical energy and the at least two electrodes are configured to deliver a quantum of electrical energy to the metallic glass sample to heat the metallic glass sample. The shaping tool is configured to apply a deformational force to shape the heated sample to an article. The at least two electrodes have a yield strength of at least 200 MPa, a Young's modulus that is at least 25% higher than the metallic glass sample, and an electrical resistivity that is lower than the metallic glass sample by a factor of at least 3.

Durable electrodes for rapid discharge heating and forming of metallic glasses

Methods and apparatus for forming high aspect ratio metallic glass objects, including metallic glass sheets and tubes, by a melt deposition process are provided. In some methods and apparatus a molten alloy is deposited inside a channel formed by two substrates moving relative to each other, and shaped and quenched by conduction to the substrates in a manner that enables the molten alloy to vitrify without undergoing substantial shear flow.

Production of metallic glass objects by melt deposition

The formation of amorphous porous bodies and in particular to a method of manufacturing such bodies from amorphous particulate materials. The method allows for the control of the volume fraction as well as the spatial and size distribution of gas-formed pores by control of the size distribution of the powder particulates. The method allows for the production of precursors of unlimited size, and because the softened state of the amorphous metals used in the method possesses visco-plastic properties, higher plastic deformations can be attained during consolidation as well as during expansion.

Production of amorphous metallic foam by powder consolidation

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 present disclosure is directed to the use of cellulosic materials, such as wood, paper, etc., or synthetic polymeric materials, such as a thermoplastic, rubber, etc., or a composite containing one or more of these materials as feedstock barrels for the process of injection molding of metallic glasses by rapid capacitor discharge forming (RCDF) techniques.

Cellulosic and synthetic polymeric feedstock barrel for use in rapid discharge forming of metallic glasses

The present disclosure is directed to feedstock barrels comprising thermally and electrically insulating films configured to be adjacent to a feedstock sample when it is loaded in the barrel for the process of shaping metallic glasses by rapid capacitor discharge forming (RCDF) techniques.

Feedstock barrels coated with insulating films for rapid discharge forming of metallic glasses

The disclosure is directed to methods of forming metallic glass multilayers by depositing a liquid layer of a metallic glass forming alloy over a metallic glass layer, and to multilayered metallic glass articles produced using such methods.

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West Hollywood, CA, United States of America

Marios D Demetriou