American Superconductor Corporation

Other

The Boeing Company

University of California

American Semiconductor Corporation

Leslie G Fritzemeier

Cornelis Leo Hans Thieme

Elliott D Thompson

David M Buczek

John D Scudiere

Martin W Rupich

Edward J Siegal

Qi Li

Wei Zhang

Gilbert N Riley, Jr

Alexander Otto

Gregory L Snitchler

Bruce B Gamble

Thomas J Van Daam

Steven Fleshler

Daniel Edward Matejczyk

Robert E Schwall

Suresh Annavarapu

Dingan Yu

Robert D Cameron

Paul N Arendt

Stephen R Foltyn

Richard E Russo

James L Smith

Paul H Berdahl

Christopher A Craven

Xiaoping Li

Darren Verebelyi

Ronald P Reade

Valery Prunier

Walter C Palm

W Larry Hults

High strength aluminum alloy powders, extrusions, and forgings are provided in which the aluminum alloys exhibit high strength at atmospheric temperatures and maintain high strength and ductility at extremely low temperatures. The alloy is produced by blending about 89 atomic % to 99 atomic % aluminum, 1 atomic % to 11 atomic % of a secondary metal selected from the group consisting of magnesium, lithium, silicon, titanium, zirconium, and combinations thereof, and up to about 10 atomic % of a tertiary metal selected from the group consisting of Be, Ca, Sr, Ba, Ra, Sc, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, W, and combinations thereof. The alloy is produced by nanostructure material synthesis, such as cryomilling, in the absence of refractory dispersoids. The synthesized alloy is then canned, degassed, consolidated, extruded, and optionally forged into a solid metallic component. Grain size within the alloy is less than 0.5 &#x3bc;m, and alloys with grain size less than 0.1 &#x3bc;m may be produced.

Cryomilled aluminum alloys and components extruded and forged therefrom

Superconducting cables and magnetic devices are disclosed.

Superconductor cables and magnetic devices

The invention relates to multi-layer articles and methods of making such articles. The methods include first conditioning the surface of an underlying layer, such as a buffer layer or a superconductor layer, then disposing a layer of material on the conditioned surface. The conditioned surface can be a high quality surface. Superconductor articles formed by these methods can exhibit relatively high critical current densities.

Multi-layer articles and methods of making same

Method for preparing cryomilled aluminum alloys and components extruded and forged therefrom

The invention relates to superconductor articles, and compositions and methods for making superconductor articles. The methods can include using a precursor solution having a relatively small concentration of total free acid. The articles can include more than one layer of superconductor material in which at least one layer of superconductor material can be formed by a solution process, such as a solution process involving the use of metalorganic precursors.

Enhanced high temperature coated superconductors joined at a cap layer

Ion texturing methods and articles are disclosed.

Ion texturing methods and articles

Superconductor reactors, methods and systems are disclosed.

Superconductor methods and reactors

Enhanced high temperature coated superconductors

Methods and articles for controlling the surface of an alloy substrate for deposition of an epitaxial layer. The invention includes the use of an intermediate layer to stabilize the substrate surface against oxidation for subsequent deposition of an epitaxial layer.

Surface control alloy substrates and methods of manufacture therefor

Methods for preparing thick film rare-earth Ba Cu O (such as YBCO) superconductive layers, particularly including deposition of a precursor as a dispersion of solid-state materials, including a binder or a solvent or both constituents. The solid-state materials include oxides, fluorides, and acetates of yttrium, barium, and copper in the form of ultrafine particles.

Coated conductor thick film precursor

An alloy having a cube textured substrate is disclosed. The alloy includes two different metals. The alloy can be used as a substrate for a superconductor. Optionally, one or more buffer layers can be disposed between the substrate and the superconductor material. The alloy can be prepared using a process that includes rolling the alloy and annealing the alloy. The alloy can have a relatively large volume percent that is formed of grains with cube texture.

Alloy materials

An alloy that contains at least two metals and can be used as a substrate for a superconductor is disclosed. The alloy can contain an oxide former. The alloy can have a biaxial or cube texture. The substrate can be used in a multilayer superconductor, which can further include one or more buffer layers disposed between the substrate and the superconductor material. The alloys can be made a by process that involves first rolling the alloy then annealing the alloy. A relatively large volume percentage of the alloy can be formed of grains having a biaxial or cube texture.

Growing community of inventors

Mendon, MA, United States of America

Leslie G Fritzemeier