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Search Results - Engineering & Physical Sciences

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Cerium, Cobalt and Copper Alloy doped with Tantalum or/and Iron as a Permanent Magnet Material
Summary: ISU and Ames Laboratory researchers have develop a gap magnet that utilizes trace amount of cheaper, abundant and non-critical cerium (Ce) as an alternative to critical rare-earths containing magnet alloys. This invention makes the magnet significantly cheaper and less dependent on supplies of rare-earth materials, with that performance su...
Published: 4/30/2018
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
Ni-Co-Mn-Ti Intermetallics with Enhanced Magnetocaloric Properties Prepared by Combination of Different Methods
Summary: Iowa State University (ISU) and Ames Laboratory (AL) researchers have developed a method to manufacture Ni-Co-Mn-Ti intermetallics with enhanced magnetocaloric properties. The resultant materials produce an extremely large magnetocaloric effect (MCE) with a modest magnetic field change. The MCE is nearly three times greater at near room te...
Published: 3/20/2018
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
Polymers for Caloric Applications
Summary: Iowa State University and Ames Laboratory researchers have developed a new polymeric material that provides a larger electrocaloric effect than previously known polymer materials. Description: Highly-efficient, solid-state cooling devices offer the promise of greatly improved energy efficiency relative to vapor-compression refrigeration s...
Published: 2/26/2018
Category(s): Ames Laboratory, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
Converting levulinic acid to olefins and aromatics (i.e. hydrocarbon fuels) in a single process step without external hydrogen gas
Summary: Iowa State University researchers have developed a new catalyst that effectively converts levulinic acid to butene in a single pot process at high conversion rates and with good selectivity towards butene. As butene is insoluble in the aqueous reaction and readily separates into a second phase, allowing unconverted levulinic acid to be rea...
Published: 2/21/2018
Category(s): Engineering & Physical Sciences, Materials
Feedstock and Heterogeneous Structure for Tough Rare Earth Permanent Magnets and Production Process Thereof
Summary: Iowa State University and Ames Laboratory researchers have developed a method for producing rare earth permanent magnets (REPMs) that reduces their susceptibility to breakage. The process involves unitizing a bimodal or multimodal size distribution of powders in isostatic pressing, which minimizes crack propagation along the grain boundari...
Published: 2/21/2018
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
Additive manufacturing of chemically active materials
Summary: ISU researchers in conjunction with Ames Laboratory have developed a method that can 3D print chemically active materials for catalytic applications. Description: Iowa State University researchers in conjunction with Ames Laboratory have made several advances in additive manufacturing (3D printing) devices that now allow for control of ch...
Published: 1/24/2018
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials, Research Tools & Design Tools
Magnetic two-way valves for paper based microfluidics: pathway for multi-step assays
Summary: ISU researchers developed a paper-fluidic valve that can reversibly switch fluid delivery into multiple channels with controlled volume and/or frequency. In terms of electric circuit equivalence, this valve is akin to a transistor or an SPDT relay, hence enables programmable fluid delivery. Stage1.png Development Stage: Description: Poin...
Published: 11/10/2017
Category(s): Engineering & Physical Sciences, Healthcare, Life Sciences, Medical Devices, Research Tools & Design Tools, Sensors & Controls
Particle jamming for controllable adhesion
Summary: Iowa State University researchers have developed a technology where an adhesive can be rapidly switched from a high to low state through a digital or mechanical trigger, enabling adhesion at surfaces to be controlled. The adhesive is strong, yet easily removable and reusable. Stage1.png Development Stage: Description: Iowa State Univers...
Published: 10/18/2017
Category(s): Engineering & Physical Sciences, Materials
Quadruple Butterfly Coil (QBC)
Summary: Iowa State University researchers have developed a novel coil, namely Quadruple Butterfly Coil (QBC). This device has improved significant higher focality over the commercial Figure of Eight (FOE) coils with decreased stimulated area in brain. Model simulation results indicated that QBC stimulates a localized area of the brain, which minim...
Published: 10/4/2017
Category(s): Engineering & Physical Sciences, Medical Devices, Healthcare, Life Sciences
Propane Dehydrogenation over Carbide Catalysts with High Selectivity
Summary: Iowa State University researchers have developed a propane dehydrogenation method to transform shale gas efficiently to propylene, which allows a new route to the second most abundant polymer, polypropylene. This is the first example of using carbide nanostructures for the catalytic dehydrogenation of propane, propylene selectivity was sho...
Published: 9/13/2017
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
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