<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Despite recent developments in sandwich panels production technology, there are some difficulties in joining core sandwiches. Liquid Phase Sintering is a conventional method to increase the density of powder metallurgy parts. In this paper, we applied LPS as a joining process between Al-foam and Al-metal by using Al-mixture powders with different compositions as the interlayer. At first stage, Al-Zn powder mixture was used and the possibility of this process was investigated. At later stages, we tried to increase the joint bonding strength with different Al-mixture powder compositions. 3-point bending test was applied and by using mathematical relations, bonding strengths were calculated. The highest bonding strength was obtained, about 9 kPa, when Al-Zn-Mg was used as the interlayer. Also energy dispersive spectrometry (EDS) was used to investigate the diffusion of additive elemental powders to Al-mixture powders.</p></abstract>

Despite recent developments in sandwich panels production technology, there are some difficulties in joining core sandwiches. Liquid Phase Sintering is a conventional method to increase the density of powder metallurgy parts. In this paper, we applied LPS as a joining process between Al-foam and Al-metal by using Al-mixture powders with different compositions as the interlayer. At first stage, Al-Zn powder mixture was used and the possibility of this process was investigated. At later stages, we tried to increase the joint bonding strength with different Al-mixture powder compositions. 3-point bending test was applied and by using mathematical relations, bonding strengths were calculated. The highest bonding strength was obtained, about 9 kPa, when Al-Zn-Mg was used as the interlayer. Also energy dispersive spectrometry (EDS) was used to investigate the diffusion of additive elemental powders to Al-mixture powders.

The Effect of Transient Liquid Phase on the Joining Process of Aluminum Foam Core Sandwiches

Department of Material Engineering, Sahand University of Technology, Tabriz,

Powder Metallurgy Progress

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Despite recent developments in sandwich panels production technology, there are some difficulties in joining core sandwiches. Liquid Phase Sintering is a...

The Effect of Transient Liquid Phase on the Joining Process of Aluminum Foam Core Sandwiches

Published Online: Nov 08, 2016

Page range: 48 - 58

DOI: https://doi.org/10.1515/pmp-2016-0005

Keywords
Aluminum foam, Liquid phase sintering, Al-powder alloy, Bonding Strength

© 2016 A. T. Tabrizi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The Effect of Transient Liquid Phase on the Joining Process of Aluminum Foam Core Sandwiches

Published Online: Nov 08, 2016

Page range: 48 - 58

DOI: https://doi.org/10.1515/pmp-2016-0005

KeywordsAluminum foam, Liquid phase sintering, Al-powder alloy, Bonding Strength

© 2016 A. T. Tabrizi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Aluminum foam, Liquid phase sintering, Al-powder alloy, Bonding Strength