C22C45/003

Process for producing molded material, molded material, wavefront control element and diffraction grating
10968505 · 2021-04-06 · ·

A process for producing a molded material that can form metallic glass material in a state of lower viscosity, and can manufacture a small structure of several 10 μm or less in a comparatively short time while precisely controlling shape thereof, by the process comprising a heating step of heating supercooled state metallic glass material or a solid metallic glass material at a temperature increase rate of 0.5 K/s to a temperature at or higher than a temperature at which a crystallization process for a supercooled liquid of the metallic glass material begins, and a molding step of transfer molding the metallic glass material until the crystallization process for the supercooled liquid of the metallic glass material has been completed. In addition, the purpose is also to provide the molded material that has been formed by this process, a wavefront control element, and a diffraction grating.

Hierarchical Conforming Gripping Arrays

Bulk metallic glass-based gripping arrays of nano- or micro-scale grippers are described, along with the methods of fabrication and use thereof. BMG-based gripping arrays can be fabricated via facile and scalable thermoplastic forming/molding methods typically available to polymeric materials, yet they possess many of the favorable properties of metallic alloys that polymers lack, such as, for example, excellent mechanical properties and robustness towards wear and adverse surrounding conditions.

Systems and methods for fabricating objects including amorphous metal using techniques akin to additive manufacturing

Systems and methods in accordance with embodiments of the invention fabricate objects including amorphous metals using techniques akin to additive manufacturing. In one embodiment, a method of fabricating an object that includes an amorphous metal includes: applying a first layer of molten metallic alloy to a surface; cooling the first layer of molten metallic alloy such that it solidifies and thereby forms a first layer including amorphous metal; subsequently applying at least one layer of molten metallic alloy onto a layer including amorphous metal; cooling each subsequently applied layer of molten metallic alloy such that it solidifies and thereby forms a layer including amorphous metal prior to the application of any adjacent layer of molten metallic alloy; where the aggregate of the solidified layers including amorphous metal forms a desired shape in the object to be fabricated; and removing at least the first layer including amorphous metal from the surface.

ADDITIVE MANUFACTURING OF IRON-BASED AMORPHOUS METAL ALLOYS
20210087663 · 2021-03-25 ·

Embodiments disclosed herein relate to the production of amorphous metals having compositions of iron, chromium, molybdenum, carbon and boron for usage in additive manufacturing, such as in layer-by-layer deposition to produce multi-functional parts. Such parts demonstrate ultra-high strength without sacrificing toughness and also maintain the amorphous structure of the materials during and after manufacturing processes. Two additive manufacturing techniques are provided: (1) the complete melting of amorphous powder and re-solidifying to amorphous structure to eliminate the formation of crystalline structure therein by controlling a heating source power and cooling rate without affecting previous deposited layers; and (2) partial melting of the outer surface of the amorphous powder, and solidifying powder particles with each-other without undergoing a complete melting stage. Amorphous alloy compositions have oxygen impurities in low concentration levels to optimize glass forming ability (GFA). Specific techniques of additive manufacturing include those based on lasers, electron beams and ultrasonic sources.

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

PdCuP 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 PdCuP 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 METALLIC GLASS PRESSURE VESSELS

A pressure vessel containing a main body with at least one opening. The pressure vessel is made from a BMG material. The pressure vessel may contain an additional part such as a neck, a liner, a rib, a lattice, a fin, and a diaphragm. The pressure vessel may be free of a welded joint in entirety. The pressure vessel may contain multiple parts in the main body, each of which is free of a welded joint. The pressure vessel may be made through thermoplastic forming.

IMPLANTABLE MEDICAL DEVICE WITH BULK METALLIC GLASS ENCLOSURE
20200282222 · 2020-09-10 ·

An enclosure for an implantable cardiac or neurostimulation device includes a bulk metallic glass alloy. In some arrangements, the enclosure is configured to house one or more components of an implantable pacemaker. In some arrangements, the enclosure is configured to house one or more components of an implantable defibrillator.

Synthetic quartz glass lid and optical device package

A synthetic quartz glass lid is provided comprising a synthetic quartz glass and an adhesive formed on a periphery of a main surface of the window member. Further, an optical device package is provided comprising a box-shaped receptacle having an open upper end, an optical device received in the receptacle, and a window member of synthetic quartz glass bonded to the upper end of the receptacle with an adhesive. The adhesive is a low-melting metallic glass consisting of Te, Ag and at least one element selected from W, V, P, Ba, and Zr.

High-throughput fabrication of patterned surfaces and nanostructures by hot-pulling of metallic glass arrays
10745788 · 2020-08-18 · ·

The present invention includes composition and methods for the fabrication of very-high-aspect-ratio structures from metallic glasses. The present invention provides a method for nondestructive demolding of templates after thermoplastic molding of metallic glass features.

Extreme ultraviolet absorbing alloys

Example embodiments relate to extreme ultraviolet absorbing alloys. One example embodiment includes an alloy. The alloy includes one or more first elements selected from: a first list consisting of: Ag, Ni, Co, and Fe; and a second list consisting of: Ru, Rh, Pd, Os, Ir, and Pt. The alloy also includes one or more second elements selected from: the first list, if the one or more first elements are not selected from the first list; and a third list consisting of Sb and Te. An atomic ratio between the one or more first elements and the one or more second elements is between 1:1 and 1:5 if the one or more second elements are selected from the third list and between 1:1 and 1:19 if the one or more second elements are not selected from the third list.