Title of article
Real time TEM observation of alumina ceramic nano-particles during compression
Author/Authors
E. Calvié، نويسنده , , Emilie and Joly-Pottuz، نويسنده , , Lucile and Esnouf، نويسنده , , Claude and Clément، نويسنده , , Philippe and Garnier، نويسنده , , Vincent and Chevalier، نويسنده , , Jérôme and Jorand، نويسنده , , Yves and Malchère، نويسنده , , Annie and Epicier، نويسنده , , Thierry and Masenelli-Varlot، نويسنده , , Karine، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
5
From page
2067
To page
2071
Abstract
The behavior of alumina nano-particles taken from a commercial powder is investigated during in situ compression experiments in a transmission electron microscope (TEM). Small particles of 40 nm in diameter can undergo severe plastic deformation without failure, whereas brittle fracture is observed for 120 nm sized nano-particles. This is evidence of a critical size under which alumina, at least in the form of nano-particles, cannot be considered as brittle materials even at room temperature and a direct observation of the grinding limit generally observed during ball milling.
Keywords
Transmission electron microscopy , in situ , ceramics , Compression , Nano-particles
Journal title
Journal of the European Ceramic Society
Serial Year
2012
Journal title
Journal of the European Ceramic Society
Record number
1414079
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