USA As Represented by Secretary of the Navy

Michael S Osofsky

Louis E Toth

Earl F Skelton

William L Lechter

Raymond C Y Auyeung

Joseph C Prestigiacomo

Mark B Johnson

David Kurt Gaskill

Rachael L Myers-Ward

James S Horwitz

Stuart A Wolf

Rhonda Michele Stroud

Evgeniya H Lock

Thomas E Sutto

Nabil D Bassim

Raymond Auyeung

Donald U Gubser

Steven H Lawrence

Todd H Brintlinger

Robert J Soulen, Jr

Amy Ng

Syed B Quadri

Doug B Chrisey

This disclosure teaches methods for making high-temperature superconducting striated tape combinations and the product high-temperature superconducting striated tape combinations. This disclosure describes an efficient and scalable method for aligning and bonding two superimposed high-temperature superconducting (HTS) filamentary tapes to form a single integrated tape structure. This invention aligns a bottom and top HTS tape with a thin intervening insulator layer with microscopic precision, and electrically connects the two sets of tape filaments with each other. The insulating layer also reinforces adhesion of the top and bottom tapes, mitigating mechanical stress at the electrical connections. The ability of this method to precisely align separate tapes to form a single tape structure makes it compatible with a reel-to-reel production process.

High-temperature superconducting striated tape combinations

Fabrication of high-temperature superconducting striated tape combinations

A method for graphene functionalization that preserves electronic properties and enables nanoparticles deposition comprising providing graphene, functionalizing the graphene via non-covalent or covalent functionalization, rinsing the graphene, drying the graphene, and forming functionalized graphene wherein the functionalized graphene preserves electronic properties and enables nanoparticles deposition. A functionalized graphene wherein the graphene functionalization preserves electronic properties and enables nanoparticles deposition.

Method for graphene functionalization that preserves characteristic electronic properties such as the quantum hall effect and enables nanoparticles deposition

A method to produce high quality single or a few atomic layers thick samples of a topological insulating layered dichalcogenide. The overall process involves grinding layered dichalcogenides, adding them to an ionic liquid, and then using a mechanical method to cause intercalation of the ionic liquid into the van der Waals (VDW) gap between the layers of the metal chalcogenide.

Method for preparing clean insulating single or few sheets of topological insulators using an ionic liquid

Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition:

HIP method of making high temperature mercury-containing superconductors

The order parameter of a superconductor is reduced by injecting spin-polarized carriers into the superconductor. The reduction in the order parameter is used to modulate the critical current of the superconductor. In a typical embodiment, a current is caused to flow through a superconductor. Spin polarized electrons are then injected into the path of the current in the superconductor by biasing a magnetic metal with respect to a terminal of the superconductor. The bias current may be varied to modulate the injection and thus the flow of current through the superconductor.

Method of controlling a super conductor

High temperature mercury-containing superconductors and method of making

High T.sub.c superconducting compounds are made by forming a reaction mixture of the oxides of Sr, Cu, Ca and Tl, compressing these into a hardened body, and placing the hardened body into a container. The container is then evacuated and sealed. The hardened body is heated under pressure until the oxides of Sr, Ca, Cu, and Tl react to form a superconducting compound.

High TC copper-oxide superconductors comprising Tl-Sr-Ca-Cu-O

Method of making Tl-Sr-Ca-Cu-oxide superconductors comprising heating at

A substantially single phase superconducting composition is formed from a of 1:2:3 molar ratio of fine powders of a superconducting rare earth oxide, CuO, and BaCo.sub.3. The mixed powders and shaped articles formed from the mixed powders are calcined, sintered, and cooled in an oxygen containing atmosphere. The cooling step is done slowly to convert the sample to the orthorhombic structure and to improve the superconducting properties. The article formed is a substantially single phase superconducting composition.

Method of making substantially single phase superconducting oxide

Growing community of inventors

Clarksville, MD, United States of America

Michael S Osofsky