Insulating material capable of withstanding cyclically varying high temperatures

US7943247B2 · kind B2 · utility

Assignee

• FNE Forschungsinstitut Fuer Nichteisen-Metalle Freiberg GmbH · DE

Inventors

• Heino Pachschwoell · Marsberg, DE
• Joachim Klose · Oederan, DE
• Christiane Rothe · Großschirma, DE
• Stefan Jonas · Berlin, DE
• Thomas Stolte · Freiberg, DE

Key dates

• Filing date: Aug 28, 2007
• Grant date: May 17, 2011
• Expiry date: Nov 27, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A heat insulation material based on ceramic material includes a top layer containing BaZrO3 and Y2O3 doped ZrO2. A heat insulation material preferably consists of at least one adhesion promotion layer, at least one intermediate layer arranged thereon and a top layer arranged thereon, with the adhesion promotion layer consisting of MeCrAlY, where Me is nickel and/or cobalt, the intermediate layer consists of Y2O3 doped ZrO2 and the top layer consists of 15 to 25% by weight BaZrO3 and 75 to 85% by weight Y2O3 doped ZrO2. A method of coating a substrate with a heat insulation material includes the step of applying an aforesaid top layer to an optionally coated substrate by a thermal spray method or an electron beam method, in particular an EB-PVD method.