Alumina/copper foams produced by replica using a double impregnation process. (17th February 2017)

• Record Type: Journal Article
• Authors: Granados, L.; Moreno, V.; Vieira, L. E.; Escobar, J. A.; Hotza, D.; Novaes de Oliveira, A. P.; Rodrigues-Neto, J. B.
• Is Part Of: Advances in applied ceramics. Volume 116:Number 2(2017)
• Page Start: 85
• Page End: 91
• Publication Date: 2017-02-17
• Subjects: Alumina -- Copper -- Foams -- Replica -- Rheology; Ceramics -- Periodicals; 620.1405
• DOI: 10.1080/17436753.2016.1236533
• Languages: English
• ISSNs: 1743-6753

Abstract

ABSTRACT: Rheological behaviour of Al2 O3 and CuO suspensions was characterised in order to fabricate Al2 O3 /Cu foams as an alternative way to produce foams with better mechanical properties than common Al2 O3 foams. Different quantities of raw materials were combined to select the formulations for the ceramic-metal foams. Foams were produced by a double impregnation process, followed by a thermal cycle and a reduction cycle. In this work, materials were characterised trough zeta potential, SEM and optical dilatometry. Foams microstructure and compressive strength were evaluated. Final structures had a compressive resistance of 0.44 ± 0.14 MPa. GRAPHICAL ABSTRACT: