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Kirigami enabled resonators for stretch and force sensing and wireless power transfer switch in soft materials
Summary: ISU researches have developed a resonant sensor structured for soft robotic applications. This technology explores the use of inexpensive flexible sensors for measuring stretch forces and wireless power transfer switch applications.Description: Measuring stretch forces in structures is challenging and only limited sensors are able to achieve...
Published: 2/26/2020
Category(s): Materials, Medical Devices, Sensors & Controls
Direct Carbohydrazide Fuel Cells for Mobile Power Sources
Summary: ISU scientists have developed a new high performance, cost effective, alkaline-membrane fuel cell for portable/mobile power source applications. Description: Fuel cells are emerging as promising technologies for increasing the possibilities of mobility and stretching the limits of energy storage. These portable power stations are attractive...
Published: 1/16/2020
Category(s): Energy, Cleantech & Environmental, Engineering & Physical Sciences, Materials
Interstitial Control during Additive Manufacturing
Summary: Iowa State University researchers have developed a method of metal additive manufacturing that controls the the impurity of the metal in the manufacturing process.Description: Metal additive manufacturing generally involves high temperatures, which results in the loss of metal and the absorption of some atmospheric elements such as nitrogen...
Published: 9/23/2019
Category(s): Materials, Engineering & Physical Sciences
Organoneodymium Catalysts for Butadiene Polymerization
Summary: ISURF 4384 provides a method for the synthesis of base-free homoleptic trivalent neodymium alkyl complexes. Upon reaction with the Lewis acid B(C₆F₅)₃, zwitterion species that can act as highly active catalysts for the polymerization of butadiene are generated.Description: ISURF 4384 provides organoneodymium catalyst purcursors and the method...
Published: 8/14/2019
Category(s): Engineering & Physical Sciences, Materials
Alkyne-Based End Group Functionalization Agents for Polybutadiene
Summary: ISURF 4603 describes a new class of functionalization agents that can be introduced to neodymium-catalyzed butadiene polymerizations to improve various properties of the polybutadiene rubber created.Description: Tires are made of natural and synthetic rubber, filler materials (such as carbon black and silica), steel, textiles, and other materials....
Published: 8/14/2019
Category(s): Engineering & Physical Sciences, Materials
Carbothermic-Silicide Method of Preparing Rare Earth Master Alloys Containing 5 to 40 Atomic Percent Silicon from the Respective Oxides
Summary: Iowa State University and Ames Laboratory researchers have developed a method of preparing rare earth-silicon alloys using carbon as a reducing agent instead of calcium that is less expensive than the traditional methods and more environmentally friendly.Description: The present invention provides a one-step process whereby rare earth-containing...
Published: 7/17/2019
Category(s): Ames Laboratory, Engineering & Physical Sciences, Materials
Precast Heated Concrete Panels Using Electrically Conductive Concrete or Hydronic Heating Technology
Summary: Iowa State University researchers have developed a method of producing precast slabs of electrically conductive concrete described in ISURF 4796 as well as hydronic heated-pavement systems, in which a heated fluid is circulated in pipes that are embedded in the pavement structure.  The heated pavement systems allow for quick and efficient snow...
Published: 6/21/2019
Category(s): Engineering & Physical Sciences, Materials
Electrically-Conductive Asphalt Concrete Containing Carbon Fibers
Summary: Iowa State University researchers have developed a method of producing electrically-conductive asphalt mastic for efficient snow removal and deicing.  The mastic is modified with both carbon fiber and graphite powder to decrease the electrical resistivity of the asphalt, allowing for an electric current to flow between electrodes to generate...
Published: 6/21/2019
Category(s): Engineering & Physical Sciences, Materials
Electrically Conductive Concrete Mixture Composition and System Design for Resistive Heating of Pavements with Low Volume Fractions of Carbon Microfiber
Summary: Iowa State University researchers have developed a method of producing a heating pavement system using electrically conductive concrete for efficient deicing.  The invention incorporates carbon microfibers in the electrically conductive concrete layer which decreases the electrical resistivity of the concrete, as well as electrodes to apply...
Published: 6/21/2019
Category(s): Engineering & Physical Sciences, Materials
Structured, Kirigami Films for Controllable Adhesion
Summary: ISU researchers have developed an adhesive that utilizes kirigami to provide anisotropic bonding, allowing for direction-controlled adhesion.Description: Recently, techniques in kirigami (Japanese art of folding that involves cutting) have been utilized to provide highly tunable stiffness and geometry in various materials.  Iowa State University...
Published: 6/21/2019
Category(s): Engineering & Physical Sciences, Materials
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