Ut-battelle, Inc.

Iowa State University Research Foundation Inc

Lawrence Livermore National Security, LLC

The University of Tennessee Research Foundation

Eck Industries, Inc.

Michael Alan McGuire

Orlando Rios

Scott McCall

Gerard Michael Ludtka

David J Weiss

Zachary C Sims

Mariappan Parans Paranthaman

Roger Allen Kisner

Hunter B Henderson

Felix Leonard Paulauskas

Paul A Menchhofer

Ryan T Ott

R William McCallum

Brian C Sales

Michael S Kesler

Wyatt Evan Tenhaeff

Cajetan Ikenna Nlebedim

Boyd Mccutchen Evans

Karren Leslie More

Ralph William McCallum

David S Parker

Michael G Kesler

Cajetan Ikenna Niebedim

Nirmal Jeevi Ghimire

Cori Thorne

Alexander H King

Huseyin Ucar

Tom Byvank

Disclosed herein are embodiments of rapidly solidified alloys that comprise aluminum, a rare earth element, one or more additional alloying elements, such as aluminum, and an optional additive component. The alloy embodiments exhibit a unique microstructure as compared to microstructures obtained from other alloys that are not rapidly cooled. The disclosed aluminum-rare earth element alloys also exhibit improved mechanical properties without the need for post-processing heat treatments and further do not exhibit substantial coarsening.

Rapidly solidified aluminum-rare earth element alloy and method of making the same

An example apparatus can comprise an emitter to emit radio frequency radiation, an absorber that changes temperature based on emissions from the emitter, and one or more sensors to measure a temperature difference between a sample and a reference coupled to the absorber.

High command fidelity electromagnetically driven calorimeter

A bulk high performance permanent magnet comprising a neodymium-iron-boron core having an outer surface, and a coercivity-enhancing element residing on at least a portion of said outer surface, with an interior portion of said neodymium-iron-boron core not having said coercivity-enhancing element therein. Also described herein is a method for producing the high-coercivity bulk permanent magnet, the method comprising: (i) depositing a coercivity-enhancing element on at least a portion of an outer surface of a neodymium-iron-boron core substrate to form a coated permanent magnet; and (ii) subjecting the coated permanent magnet to a pulse thermal process that heats said outer surface to a substantially higher temperature than an interior portion of said neodymium-iron-boron core substrate, wherein said substantially higher temperature is at least 200&#xb0; C. higher than said interior portion and is of sufficient magnitude to induce diffusion of said coercivity-enhancing element below said outer surface but outside of said interior portion.

Neodymium-iron-boron magnet with selective surface modification, and method of producing same

A cast alloy includes aluminum and from about 5 to about 30 weight percent of at least one material selected from the group consisting of cerium, lanthanum, and mischmetal. The cast alloy has a strengthening AlXintermetallic phase in an amount in the range of from about 5 to about 30 weight percent, wherein X is at least one of cerium, lanthanum, and mischmetal. The AlXintermetallic phase has a microstructure that includes at least one of lath features and rod morphological features. The morphological features have an average thickness of no more than 700 um and an average spacing of no more than 10 um, the microstructure further comprising an eutectic microconstituent that comprises more than about 10 volume percent of the microstructure.

Castable high-temperature Ce-modified Al alloys

A method for producing a carbon fiber, the method comprising: (i) subjecting a continuous carbon fiber precursor having a polymeric matrix in which strength-enhancing particles are incorporated to a stabilization process during which the carbon fiber precursor is heated to within a temperature range ranging from the glass transition temperature to no less than 20&#xb0; C. below the glass transition temperature of the polymeric matrix, wherein the maximum temperature employed in the stabilization process is below 400&#xb0; C., for a processing time within said temperature range of at least 1 hour in the presence of oxygen and in the presence of a magnetic field of at least 1 Tesla, while said carbon fiber precursor is held under an applied axial tension; and (ii) subjecting the stabilized carbon fiber precursor, following step (i), to a carbonization process. The stabilized carbon fiber precursor, resulting carbon fiber, and articles made thereof are also described.

Low temperature stabilization process for production of carbon fiber having structural order

An alloy composition is composed essentially of HfZrCoB, wherein 0&#x3c;X&#x3c;2 and 0&#x3c;Y&#x2266;1.5. Moreover, an alloy composition is composed essentially of ferromagnetic HfZrCoB, wherein 0&#x2266;X&#x3c;2 and 0&#x3c;Y&#x2266;1.5, and has a nanoscale crystalline structure comprising at least one non-equilibrium phase. The alloys can be melt-spun with in-situ and/or ex-situ annealing to produce the nanoscale crystalline structure.

Hf&#x2014;Co&#x2014;B alloys as permanent magnet materials

Growing community of inventors

Knoxville, TN, United States of America

Michael Alan McGuire