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Corrosion mechanism of Lu2Si2O7 phase in static state water vapor environment

  • National Institute of Advanced Industrial Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The recession mechanism of Lu2Si2O7 phase was examined at 1300°C in water vapor environment. Corrosion test was performed on hot-pressed polycrystalline Lu2Si2O7 and mullite/Lu2Si2O7 eutectic samples. The boundary silica phase was easily corroded by water vapor attack for hot-pressed Lu2Si2O7 sample with a weight loss rate of 1.4×10−6 g/cm2h. Lu-rich component was firstly melted down and then the melted component was vaporized by water vapor. On the other hand, no weight change was observed for the eutectic sample. A part of Lu2Si2O7 phase was decomposed and the polycrystalline phase was observed.
Original languageEnglish
Title of host publication28th International Conference on Advanced Ceramics and Composites B
Subtitle of host publicationCeramic Engineering and Science Proceedings
EditorsEdgar Lara-Curzio, Michael J. Readey
Place of PublicationOhio, U.S.
PublisherJohn Wiley & Sons, Inc
Chapter68
Pages451-455
Number of pages5
ISBN (Electronic)9780470291191
ISBN (Print)9780470051528
DOIs
Publication statusPublished - 1 Jan 2004
Externally publishedYes
Event28th International Conference and Exposition on Advanced Ceramics and Composites - Cocoa Beach, U.S.
Duration: 25 Jan 2004 → 30 Jan 2004

Publication series

NameCeramic Engineering and Science Proceedings
Number25
ISSN (Electronic)1940-6339

Conference

Conference28th International Conference and Exposition on Advanced Ceramics and Composites
Period25/01/04 → 30/01/04

Bibliographical note

Organising Body: The American Ceramic Society

Keywords

  • non-oxide ceramic materials
  • silicon hydroxides
  • energy production
  • corrosion tests
  • alumina
  • Chemical engineering

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