Surface modified metallic foam body, process for its production and use thereof

US10596556B2 · kind B2 · utility

Assignees

• Alantum Europe GmbH · DE
• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Dejan Radivojevic · Wien, AT
• Dirk Neumann · Essen, DE
• Shadi Saberi · San Francisco, US
• Jungsuk Bae · Seoul, KR
• René Poss · Karlsruhe, DE
• Tilo Büttner · Strasburg (Uckermark), DE
• Gunnar Walther · Dresden, DE
• Hans-Dietrich Böhm · Dresden, DE
• Thomas Weissgärber · Dresden, DE
• Burghardt Klöden · Dresden, DE
• Arne Boden · Dresden, DE

Key dates

• Filing date: Feb 5, 2014
• Grant date: Mar 24, 2020
• Expiry date: Oct 15, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J23/755
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A metallic foam body containing an alloy skin which is up to 50 μm thick can be obtained by a process including (a) providing a metallic foam body comprising a first metallic material; (b) applying a second metallic material which contains a first metallic compound that is leachable as such and/or that can be transformed by alloying into a second metallic compound that is leachable and different from the first metallic compound on a surface of the foam body (a), by coating the metallic foam body with an organic binder and a powder of the second metallic material; (c) forming a skin on foam body (b) by alloying the first and the second metallic material; and (d) leaching out with a leaching agent at least a part of the first and/or the second metallic compound.