Ut-battelle, Inc.

Lockheed Martin Energy, LLC

Roeland Feenstra

Mariappan Parans Paranthaman

Amit Goyal

Dominic F Lee

Robert K Williams

David K Christen

Thomas G Chirayil

Donald M Kroeger

Tolga Aytug

David P Norton

Materials for depositing buffer layers on biaxially textured and untextured metallic and metal oxide substrates for use in the manufacture of superconducting and other electronic articles comprise RMnO , R A MnO , and combinations thereof; wherein R includes an element selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and A includes an element selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Ra.

Buffer layers and articles for electronic devices

A laminate article consists of a substrate and a biaxially textured protective layer over the substrate. The substrate can be biaxially textured and also have reduced magnetism over the magnetism of Ni. The substrate can be selected from the group consisting of nickel, copper, iron, aluminum, silver and alloys containing any of the foregoing. The protective layer can be selected from the group consisting of gold, silver, platinum, palladium, and nickel and alloys containing any of the foregoing. The protective layer is also non-oxidizable under conditions employed to deposit a desired, subsequent oxide buffer layer. Layers of YBCO, CeO , YSZ, LaAlO , SrTiO , Y O , RE O , SrRuO , LaNiO and La ZrO can be deposited over the protective layer. A method of forming the laminate article is also disclosed.

Method of depositing a protective layer over a biaxially textured alloy substrate and composition therefrom

A laminate article comprises a substrate and a biaxially textured (RE A ) O buffer layer over the substrate, wherein 0<x&lE;0.70 and RE is selected from the group consisting of La, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb, and Lu. A is selected from the group consisting of Zr , Ce , Sn , and Hf . The (RE A ) O buffer layer can be deposited using sol-gel or metal-organic decomposition. The laminate article can include a layer of YBCO over the (RE A ) O buffer layer. A layer of CeO between the YBCO layer and the (RE A ) O buffer layer can also be include. Further included can be a layer of YSZ between the CeO layer and the (RE A ) O buffer layer. The substrate can be a biaxially textured metal, such as nickel. A method of forming the laminate article is also disclosed.

Laminate article

A laminate article comprises a substrate and a biaxially textured (RE,A,),O,buffer layer over the substrate, wherein 0<x&lE;0.70 and RE is selected from the group consisting of La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. A is selected from the group consisting of Zr,, Ce,, Sn,, and Hf,. The (RE,A,),O,buffer layer can be deposited using sol-gel or metal-organic decomposition. The laminate article can include a layer of YBCO over the (RE,A,),O,buffer layer. A layer of CeO,between the YBCO layer and the (RE,A,),O,buffer layer can also be include. Further included can be a layer of YSZ between the CeO,layer and the (RE,A,),O,buffer layer. The substrate can be a biaxially textured metal, such as nickel. A method of forming the laminate article is also disclosed.

Rare earth zirconium oxide buffer layers on metal substrates

A method is disclosed for fabricating YBa.sub.2 Cu.sub.3 O.sub.7 superconductor layers with the capability of carrying large superconducting currents on a metallic tape (substrate) supplied with a biaxially textured oxide buffer layer. The method represents a simplification of previously established techniques and provides processing requirements compatible with scale-up to long wire (tape) lengths and high processing speeds. This simplification has been realized by employing the BaF.sub.2 method to grow a YBa.sub.2 Cu.sub.3 O.sub.7 film on a metallic substrate having a biaxially textured oxide buffer layer.

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Knoxville, TN, United States of America

Roeland Feenstra