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Preparation of aluminum foam using a novel gas-generating agent

  • Deng Wei Huo
  • , Xiang Yang Zhou*
  • , Tai Kang Zhang
  • , Jing Qin
  • , Jie Li
  • , Huan Zhao
  • *Corresponding author for this work
  • Central South University
  • China Aluminium Corporation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The thermal decomposition behavior of a novel gas-generating agent (NA) and its effect on the viscosity of aluminum melt were investigated, as well as me preparation technology of aluminum foam by using NA as foaming agent and viscosifier was presented. The results show mat NA has a wide decomposition temperature range and a gentle decomposition rate, and NA can effectively increase the viscosity of aluminum melt, as a result, me dric-metal foaming agents such as TiH2 and ZrH2 can be replaced by NA and an extra viscosifier such as Ca is unnecessary during preparation process of aluminium foam by melt foaming method. The aluminum foam with porosity of 60%-85% can be prepared while the additive amount of fine NA powder as viscosifier is in the range from 0.6wt% to 1.0wt%, and the additive amount of coarse NA powder as foaming agent is in the range from 1.6wt% to 2.2wt%.

Original languageEnglish
Title of host publicationTMS 2011 - 140th Annual Meeting and Exhibition, Supplemental Proceedings
Pages185-190
Number of pages6
StatePublished - 2011
Externally publishedYes
EventTMS 2011 - 140th Annual Meeting and Exhibition - San Diego, CA, United States
Duration: 27 Feb 20113 Mar 2011

Publication series

NameTMS Annual Meeting
Volume2

Conference

ConferenceTMS 2011 - 140th Annual Meeting and Exhibition
Country/TerritoryUnited States
CitySan Diego, CA
Period27/02/113/03/11

Keywords

  • Closed-cell aluminum foam
  • Foaming agent
  • Novel additive
  • Viscosifier

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