Laminate article

US6399154B1 · kind B1 · utility

Assignee

• UT-BATTELLE, LLC · US

Inventors

• Robert K. Williams · Knoxville, US
• Mariappan Parans Paranthaman · Knoxville, US
• Thomas Chirayil · Knoxville, US
• Dominic F. Lee · Knoxville, US
• Amit Goyal · Knoxville, US
• Roeland Feenstra · Knoxville, US

Key dates

• Filing date: Jun 20, 2000
• Grant date: Jun 4, 2002
• Expiry date: Jun 24, 2020

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 (RExA(1&#8722;x))2O2&#8722;(x/2) 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+4, Ce+4, Sn+4, and Hf+4. The (RExA(1&#8722;x))2O2&#8722;(x/2) buffer layer can be deposited using sol-gel or metal-organic decomposition. The laminate article can include a layer of YBCO over the (RExA(1&#8722;x))2O2&#8722;(x/2) buffer layer. A layer of CeO2 between the YBCO layer and the (RExA(1&#8722;x))2O2&#8722;(x/2) buffer layer can also be include. Further included can be a layer of YSZ between the CeO2 layer and the (RExA(1&#8722;x))2O2&#8722;(x/2) buffer layer. The substrate can be a biaxially textured metal, such as nickel. A method of forming the laminate article is also disclosed.