National Technology & Engineering Solutions of Sandia, LLC

Other

Sandia Corporation

Harlan James Brown-Shaklee

Erik David Spoerke

Jon Ihlefeld

Michael B Sinclair

Leo J Small

Timothy Walsh

Chris Hammetter

David R Wheeler

Gregory Eugene Hilmas

William Gene Fahrenholtz

Karen Waldrip

Jeremy Lee Watts

Jill S Wheeler

Mia Angelica Blea-Kirby

Nekoda Van De Werken

Joseph E Bishop

Wilkins Aquino

Jonathan Anton Bock

A sodium-ion conducting NaSICON ceramic can be densified via the addition of a solvent to a NaSICON powder and subsequent pressing under high pressure and mild heat. Densification to &#x2dc;90% relative density can be achieved, providing a path toward low-temperature fabrication of Na-ion conductors.

Solution-assisted densification of NaSICON ceramics

A method, system, and apparatus for fabricating an acoustic metamaterial is provided. In an embodiment, a method for fabricating an acoustic metamaterial includes determining at least one tuned physical property for each of a plurality of micro-resonators according to a desired acoustic property of the acoustic metamaterial. For a particular physical property, a value of the tuned physical property for at least one of the plurality of micro-resonators is different from a value of the tuned physical property for at least one other of the plurality of micro-resonators. The method also includes additively forming the acoustic metamaterial such that the acoustic metamaterial comprises a first structure and the plurality of micro-resonators embedded within the first structure. Forming the acoustic metamaterial is performed such that an actual physical property of each of the plurality of micro-resonators is equal to a corresponding tuned physical property for each of the plurality of micro-resonators.

Computationally optimized and manufactured acoustic metamaterials

A method and apparatus for attenuating acoustic waves is provided. A lattice is formed with a plurality of support struts. A plurality of resonating struts are formed extending between the support struts, wherein the resonating struts are configured to attenuate acoustic waves within a predetermined range of frequencies while allowing acoustic waves outside the predetermined range of frequencies to pass through the resonant structure unattenuated. The resonant structure is interposed between two bodies to isolate one body from acoustic waves from the other body over the predetermined range of frequencies.

Additively manufactured locally resonant interpenetrating lattice structure

A method to produce high density, uniform lithium lanthanum tantalate lithium-ion conducting ceramics uses small particles that are sintered in a pressureless crucible that limits loss of LiO.

Method for producing dense lithium lanthanum tantalate lithium-ion conducting ceramics

A purification method that uses ion-selective ceramics to electrochemically filter waste products from a molten salt. The electrochemical method uses ion-conducting ceramics that are selective for the molten salt cations desired in the final purified melt, and selective against any contaminant ions. The method can be integrated into a slightly modified version of the electrochemical framework currently used in pyroprocessing of nuclear wastes.

Electrochemical ion separation in molten salts

A bismuth-doped perovskite thermoelectric, comprising (Bi, La)SrTiO, wherein x is between 0.01 and 0.1, can have a high figure-of-merit, ZT.

High ZT bismuth-doped perovskite thermoelectrics

A method of producing a ceramic weld, including identifying a ceramic first surface and a ceramic second surface to be bonded together, maintaining a non-oxidizing atmosphere over the first and second surfaces, and engaging the first and second surfaces to define a joint. An arc is generated between an electrode and the joint to create a liquid phase, and the liquid phase is cooled to yield a solid fusion layer, wherein the first and second surfaces are joined in the fusion layer.

Ceramic welds, and a method for producing the same

Growing community of inventors

Albuquerque, NM, United States of America

Harlan James Brown-Shaklee