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Aligned Nanocrystalline Fragmentation of Mullite under Shock Loading
Author(s) -
Kawai N.,
Atou T.,
Ito S.,
Yubuta K.,
Kikuchi M.,
Nakamura K. G.,
Kondo K.
Publication year - 2007
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.200602380
Subject(s) - mullite , materials science , nanocrystalline material , transmission electron microscopy , amorphous solid , diffraction , phase (matter) , electron diffraction , crystallography , shock (circulatory) , composite material , chemical engineering , nanotechnology , optics , ceramic , medicine , chemistry , physics , organic chemistry , engineering
Aligned nanocrystalline fragments in an amorphous phase , formed by shock‐loading of mullite, are revealed by transmission electron microscopy and X‐ray diffraction studies. The novel structure (see figure) is explained by amorphization due to oxygen vacancies in the mullite structure at pressures above the phase‐transition pressure.