Title

Acoustic emission avalanches during compression of granular manganites

11627/519711627/5197

Author
Soto-Parra, Daniel Enrique
Vives, Eduard
Botello Zubiate, Maria Eugenia
Matutes Aquino, José Andrés
Planes, Antoni
Abstract
"We have studied acoustic emission (AE) during compression of La0.8Ca0.28Sr0.08MnO2.7 manganites with different microstructures obtained by selected synthesis techniques. In ceramic samples with large grains obtained by a solid-state method, avalanche criticality is confirmed when grain fracture is the AE dominant mechanism. In samples synthesized by means of micro-wave and sol-gel techniques, grains are much smaller and the AE is mainly originated from friction effects associated with relative displacement of grains during deformation. In this case, significant deviations from avalanche criticality have been detected. Published by AIP Publishing."
Publication date
2018
Publication type
article
DOI
https://doi.org/10.1063/1.5040486
Knowledge area
FÍSICA
Handle
http://hdl.handle.net/11627/5197
Collections
Publisher
American Institute of Physics
Keywords
Distributions
Noise
Citation
Daniel Soto-Parra, Eduard Vives, M. E. Botello-Zubiate, J. A. Matutes-Aquino, and Antoni Planes. (2018). Acoustic emission avalanches during compression of granular manganites. Applied Physics Letters 112, 251906; https://doi.org/10.1063/1.5040486
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