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Interaction between γ-TiAl alley and zirconia

  • Liu Aihui*
  • , Li Bangsheng
  • , Nan Hai
  • , Sui Yanwei
  • , Guo Jingjie
  • , Fu Hengzhi
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Beijing Institute of Aeronautical Materials

Research output: Contribution to journalArticlepeer-review

Abstract

A study on the interaction between TiAl alloy and zirconia was carried out in argon atmosphere. The micrographic observations of the cross-section perpendicular to the interface were obtained using a scanning electron microscope with a dedicated energy dispersive spectrometer (SEM/EDS). The results showed that firstly TiAl alloy spreads on the ceramic surface, and then infiltrates into the pores between ceramic particles accompanied by a chemical reaction. The whole ceramic mold is broken into tiny blocks. A multiple fission reaction mechanism was developed to explain the interaction between TiAl alloy and zirconia.

Original languageEnglish
Pages (from-to)44-46
Number of pages3
JournalChina Foundry
Volume5
Issue number1
StatePublished - Feb 2008
Externally publishedYes

Keywords

  • Ceramics
  • Interfacial reaction
  • Microstructure
  • Y-TiAl alloy

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