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Vibro-acoustic metamaterial with mass and flexible stem array

WSU researchers have developed a novel device combining the effects of negative effective elastic modulus and negative effective mass, acting as local resonators that can damp out vibrations and sound at multiple frequencies. This class of metamaterials has the superior ability to attenuate sound and have a much greater ability to block dynamic disturbances....

Published: 2/6/2014 | Inventor(s): Md Tofiqul Islam, Golam Newaz, Mohammad Hailat

Keywords(s):

Category(s): Materials, Industrial & Manufacturing, Other, Physical Sciences, Building & Construction

Compositions, Process, and Method for Producing Hybrid Green Cements and Their Concrete Products

A Wayne State University researcher has developed a novel method to make sustainable Hybrid Green Cements (HGC) from low cost minerals and waste minerals such as coal, ash, bio-mass ash, or mine tailings. Key issues that the researcher has identified include optimal ranges of hybrid mix compositions, processing, and curing conditions. HGC provides...

Published: 2/6/2014 | Inventor(s): HwaI-Chung Wu

Keywords(s):

Category(s): Materials, Energy & Environment, Physical Sciences, Building & Construction, Other, Industrial & Manufacturing

Development of a High Strength High Toughness (HSHT) Bainitic Steel

This invention is a unique composition of steel when subjected to a non-conventional austempering process results in the following physical property advantages over high strength low alloy (HSLA) steel:- Twice the strength- Almost three times the fracture toughnessAustempering is a process typically used to produce specialty cast iron products but...

Published: 3/31/2014 | Inventor(s): Susil Putatunda

Keywords(s):

Category(s): Materials, Building & Construction, High strength, Industrial & Manufacturing, Physical Sciences

Austenitic (Non-Magnetic) Structural Steel

Wayne State University research has yielded both a novel composition and a lower cost processing technique for the creation of austenitic non-magnetic structural steel. This steel has advantages that include a high work hardening rate, good corrosion resistance, combination of strength and ductility and good creep resistance. Use of this steel...

Published: 2/6/2014 | Inventor(s): Susil Putatunda

Keywords(s): Transportation

Category(s): Materials, Automotive & Transportation, High strength, Other, Physical Sciences, Building & Construction, Industrial & Manufacturing