Iowa State University Research Foundation Inc

Arjun K Pathak

Vitalij K Pecharsky

Viktor Balema

Yaroslav Mudryk

Ihor Hlova

Duane D Johnson

Oleksandr Dolotko

Prashant Singh

Tian Lan

Sonal Padalkar

Anis Biswas

Henrique Neves Bez

Nikolai A Zarkevich

A magnetocaloric material comprising a La—Fe—Si based alloy composition that is compositionally modified to include a small but effective amount of at least one of Al, Ga, and In to improve mechanical stability of the alloy (substantially reduce alloy brittleness), improve thermal conductivity, and preserve comparable or provide improved magnetocaloric effects. The alloy composition may be further modified by inclusion of at least one of Co, Mn, Cr, and V as well as interstitial hydrogen.

Modified La—Fe—Si magnetocaloric alloys

A cathode is provided for electrolysis of water wherein the cathode material comprises a multi-principal element, transition metal dichalcogenide material that has four or more chemical elements and that is a single phase, solid solution. The pristine cathode material does not contain platinum as a principal (major) component. However, a cathode comprising a transition metal dichalcogenide having platinum (Pt) nanosized islands or precipitates disposed thereon is also provided.

Electrocatalyst for water electrolysis

A method is provided of making a magnetocaloric alloy composition comprising Ni, Co, Mn, and Ti, which preferably includes certain beneficial substitutional elements, by melting the composition and rapidly solidifying the melted composition at a cooling rate of at least 100 K/second (Kelvin/second) to improve a magnetocaloric property of the composition. The rapidly solidified composition can be heat treated to homogenize the composition and annealed to tune the magneto-structural transition for use in a regenerator.

Highly tunable, inexpensive and easily fabricated magnetocaloric materials

A magnetocaloric material comprising a La&#x2014;Fe&#x2014;Si based alloy composition that is compositionally modified to include a small but effective amount of at least one of Al, Ga, and In to improve mechanical stability of the alloy (substantially reduce alloy brittleness), improve thermal conductivity, and preserve comparable or provide improved magnetocaloric effects. The alloy composition may be further modified by inclusion of at least one of Co, Mn, Cr, and V as well as interstitial hydrogen.

Modified La&#x2014;Fe&#x2014;Si magnetocaloric alloys

Growing community of inventors

Ames, IA, United States of America

Arjun K Pathak