Real time TEM observation of alumina ceramic nano-particles during compression

Emilie Calvié; Lucile Joly-Pottuz; Claude Esnouf; Philippe Clément; Vincent Garnier; Jérôme Chevalier; Yves Jorand; Annie Malchère; Thierry Epicier; Karine Masenelli-Varlot

doi:10.1016/j.jeurceramsoc.2012.02.029

Real time TEM observation of alumina ceramic nano-particles during compression

Emilie Calvié, Lucile Joly-Pottuz, Claude Esnouf, Philippe Clément, Vincent Garnier, Jérôme Chevalier, Yves Jorand, Annie Malchère, Thierry Epicier, Karine Masenelli-Varlot

IFS - Lyon Center (Integration Research Center for Materials and Fluid Sciences)

Université de Lyon

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2067-2071
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	32
Issue number	10
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2012.02.029
Publication status	Published - 2012 Aug

Keywords

Ceramics
Compression
In situ
Nano-particles
Transmission electron microscopy

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10.1016/j.jeurceramsoc.2012.02.029

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title = "Real time TEM observation of alumina ceramic nano-particles during compression",

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 = "Ceramics, Compression, In situ, Nano-particles, Transmission electron microscopy",

author = "Emilie Calvi{\'e} and Lucile Joly-Pottuz and Claude Esnouf and Philippe Cl{\'e}ment and Vincent Garnier and J{\'e}r{\^o}me Chevalier and Yves Jorand and Annie Malch{\`e}re and Thierry Epicier and Karine Masenelli-Varlot",

note = "Funding Information: The authors thank the Centre LYonnais de Microscopie (CLYM) for financial support and access to the JEOL 2010F microscope. Financial support from the R{\'e}gion Rh{\^o}ne-Alpes (MACODEV cluster) and the Institut Universitaire de France is also acknowledged.",

year = "2012",

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doi = "10.1016/j.jeurceramsoc.2012.02.029",

language = "English",

volume = "32",

pages = "2067--2071",

journal = "Journal of the European Ceramic Society",

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AU - Calvié, Emilie

AU - Joly-Pottuz, Lucile

AU - Esnouf, Claude

AU - Clément, Philippe

AU - Garnier, Vincent

AU - Chevalier, Jérôme

AU - Jorand, Yves

AU - Malchère, Annie

AU - Epicier, Thierry

AU - Masenelli-Varlot, Karine

N1 - Funding Information: The authors thank the Centre LYonnais de Microscopie (CLYM) for financial support and access to the JEOL 2010F microscope. Financial support from the Région Rhône-Alpes (MACODEV cluster) and the Institut Universitaire de France is also acknowledged.

PY - 2012/8

Y1 - 2012/8

N2 - 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.

AB - 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.

KW - Ceramics

KW - Compression

KW - In situ

KW - Nano-particles

KW - Transmission electron microscopy

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M3 - Article

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VL - 32

SP - 2067

EP - 2071

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 10

ER -

Real time TEM observation of alumina ceramic nano-particles during compression

Abstract

Keywords

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