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Effects of Carbon Nanotubes on Grain Boundary Sliding in Zirconia Polycrystals
Author(s) -
Daraktchiev M.,
Van de Moortèle B.,
Schaller R.,
Couteau E.,
Forró L.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400598
Subject(s) - materials science , superplasticity , grain boundary , creep , carbon nanotube , grain boundary sliding , cubic zirconia , transmission electron microscopy , composite material , metallurgy , nanotechnology , ceramic , microstructure
Introducing carbon nanotubes into zirconia is shown to drastically reduce grain boundary sliding and consequently mechanical loss at high temperatures. The nanotubes are observed at the grain boundaries by high‐resolution transmission electron microscopy (see Figure) and are related to the reduction of superplastic flow through the boundaries, which should improve creep resistance.