Wisconsin Alumni Research Foundation

Technology

HIGH-VOLTAGE BIDIRECTIONAL FIELD EFFECT TRANSISTOR

UW-Madison researchers have designed a bidirectional switch based on an AlGaN/GaN structure with BaTiO3 to achieve the ideal target of ~1-1.1x resistance. The design is scalable from 100 V - 10 kV. T...
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Chirag Gupta, Shubhra Pasayat | P230010US01

Technology

ELECTRICAL MACHINE COOLING

UW researchers have created a novel rotor hub structure that uses an airfoil or blade (similar to what is used in fans, compressors, or turbines) to enable self-cooling. In conventional rotor structur...
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Bulent Sarlioglu, Gregory Nellis, Leyue Zhang, Hao Ding | P220063US02

Technology

ALLOY COMPOSITION, METHOD AND APPARATUS THEREFOR

UW-Madison researchers have developed a method of forming a three-dimensional (3D) structure by depositing an alloy composition on a target, and solidifying portions of the alloy composition to form t...
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Lianyi Chen, Qilin Guo | P200302US01

Technology

SYSTEM AND METHOD FOR ELECTRIC MACHINE COOLING

UW researchers a novel cooling method for radial flux machines using a heat exchanger, which is placed inside the radial cooling ducts, encircling stator slots, and featuring coolant flow in the circu...
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Bulent Sarlioglu, Gokhan Cakal | P220228US01

Technology

ELECTRIC MOTOR PROVIDING BEARING-FORCE UNLOADING

UW-Madison researchers have developed a hybrid electric machine bearing system that uses both gas and electromagnetic shaft support. The windings of the electric motor are used to reduce the loading o...
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Eric Severson, Nathan Petersen | P230289US01

Technology

Anodizing Pen

A recent IBISWorld report assessed that the services of electroplating, plating, polishing, anodizing, and coloring of metals accounted for almost one third of the US metal treating market, which they...
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Brandon Behringer, Allen Rocha | T190058US02

Technology

HIGH ENERGY 3-D PRINTER EMPLOYING CONTINUOUS PRINT PATH

UW-Madison innovators have designed a continuous helical 3D metal printer with an unbounded rotating powder volume. In one embodiment, the powder bed system exists as a torus, where powder is deposite...
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Thomas (Rock) Mackie, Brandon Walker, Nathan Schumacher | P210260US01

Technology

POWDER DEPOSITION APPARATUSES AND METHODS

UW-Madison researchers have developed a high throughput powder spreadability testing system that can test powder spreadability at multiple layer thicknesses, multiple substrate materials, multiple bla...
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Lianyi Chen, Luis Izet Escano | P240087US01

Technology

HIGH-EFFICIENCY DRIVE CIRCUIT AND BIDIRECTIONAL FET

Typically, bidirectional switching elements are fabricated using two FET devices, for example, arranged in series with opposite polarities, each device shunted by a diode to steer current to the prope...
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Chirag Gupta, Daniel Ludois, Shubhra Pasayat | P220279US02

Technology

AEROSOL JET PRINTED QUANTUM DOT MATRIX

Quantum dots are nanometer-sized semiconductors with optical properties that result from a combination of their small size and quantum mechanical effects. In one important application, quantum dots ma...
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Joseph Andrews, Anna Meredith | P240047US01

Technology

LASER-BASED MANUFACTURING PROCESSES AND APPARATUSES

UW-Madison researchers have developed an optical sensor for monitoring of laser-based manufacturing processes such as 3D printing. The device uses wavelength-swept lasers tuned across the absorption ...
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Scott Sanders, Lianyi Chen, Matthias Beuting | P230346US01

Technology

COLD-SPRAYED TANTALUM COATINGS AND RELATED METHODS

UW-Madison researchers have developed cold-sprayed tantalum coatings configured to absorb a hydrogen species from an atmosphere, e.g., a gaseous region surrounding a plasma. The technology can be app...
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Oliver Schmitz, Kumar Sridharan, Mykola Ialovega, Hwasung Yeom, Tyler Dabney, Danah Velez, Marcos Navarro Gonzalez, Evan Willing | P220126US02

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