Method of depositing buffer layers on biaxially textured metal substrates

US6440211B1 · kind B1 · utility

Assignee

• UT-BATTELLE, LLC · US

Inventors

• David B. Beach · Yorktown Heights, US
• Jonathan S. Morrell · Knoxville, US
• Mariappan Parans Paranthaman · Knoxville, US
• Thomas Chirayil · Knoxville, US
• Eliot D. Specht · Knoxville, US
• Amit Goyal · Knoxville, US

Key dates

• Filing date: Sep 30, 1999
• Grant date: Aug 27, 2002
• Expiry date: Sep 30, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D2201/05
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A laminate article comprises a substrate and a biaxially textured (RE1xRE2(1&#8722;x))2O3 buffer layer over the substrate, wherein 0<x<1 and RE1 and RE2 are each selected from the group consisting of Nd, Sm, Eu, Ho, Er, Lu, Gd, Tb, Dy, Tm, and Yb. The (RE1xRE2(1&#8722;x))2O3 buffer layer can be deposited using sol-gel or metal-organic decomposition. The laminate article can include a layer of YBCO over the (RE1xRE2(1&#8722;x))2O3 buffer layer. A layer of CeO2 between the YBCO layer and the (RE1xRE2(1&#8722;x))2O3 buffer can also be include. Further included can be a layer of YSZ between the CeO2 layer and the (RE1xRE2(1&#8722;x))2O3 buffer layer. The substrate can be a biaxially textured metal, such as nickel. A method of forming the laminate article is also disclosed.