In situ TEM observation of crack propagation in LiTaO3 particle toughened Al2O3 ceramics

Y. G. Liu; D. C. Jia; Y. Zhou; M. H. Fang; Z. H. Huang

doi:10.1016/j.ceramint.2010.10.002

In situ TEM observation of crack propagation in LiTaO₃ particle toughened Al₂O₃ ceramics

Y. G. Liu
, D. C. Jia
, Y. Zhou
, M. H. Fang
, Z. H. Huang

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

7 Scopus citations

Abstract

Direct observation of crack propagation in LiTaO₃/Al ₂O₃ composite ceramics was carried out using in situ transmission electron microscopy (TEM). Domain switching induced by crack propagation, crack deflection and branching at domain boundaries and ripples similar to the contrasts of 180° domains at the microcrack tip inside LiTaO₃ grains were detected evidently. Domain switching, crack deflection, branching and energy dissipation resulting from the formation of contrasts similar to the 180° domains at the microcrack tip, were proposed as the toughening mechanisms in LiTaO₃/Al₂O₃ ceramics.

Original language	English
Pages (from-to)	647+650
Journal	Ceramics International
Volume	37
Issue number	2
DOIs	https://doi.org/10.1016/j.ceramint.2010.10.002
State	Published - Mar 2011
Externally published	Yes

Keywords

Crack propagation
Domain switching
LiTaO/AlO composite ceramics
Toughening mechanism
Transmission electron microscopy (TEM)

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10.1016/j.ceramint.2010.10.002

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@article{be7b20cc64904d7dbea3b24b5d1a43d4,

title = "In situ TEM observation of crack propagation in LiTaO3 particle toughened Al2O3 ceramics",

abstract = "Direct observation of crack propagation in LiTaO3/Al 2O3 composite ceramics was carried out using in situ transmission electron microscopy (TEM). Domain switching induced by crack propagation, crack deflection and branching at domain boundaries and ripples similar to the contrasts of 180° domains at the microcrack tip inside LiTaO3 grains were detected evidently. Domain switching, crack deflection, branching and energy dissipation resulting from the formation of contrasts similar to the 180° domains at the microcrack tip, were proposed as the toughening mechanisms in LiTaO3/Al2O3 ceramics.",

keywords = "Crack propagation, Domain switching, LiTaO/AlO composite ceramics, Toughening mechanism, Transmission electron microscopy (TEM)",

author = "Liu, \{Y. G.\} and Jia, \{D. C.\} and Y. Zhou and Fang, \{M. H.\} and Huang, \{Z. H.\}",

year = "2011",

month = mar,

doi = "10.1016/j.ceramint.2010.10.002",

language = "英语",

volume = "37",

pages = "647+650",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "2",

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TY - JOUR

T1 - In situ TEM observation of crack propagation in LiTaO3 particle toughened Al2O3 ceramics

AU - Liu, Y. G.

AU - Jia, D. C.

AU - Zhou, Y.

AU - Fang, M. H.

AU - Huang, Z. H.

PY - 2011/3

Y1 - 2011/3

N2 - Direct observation of crack propagation in LiTaO3/Al 2O3 composite ceramics was carried out using in situ transmission electron microscopy (TEM). Domain switching induced by crack propagation, crack deflection and branching at domain boundaries and ripples similar to the contrasts of 180° domains at the microcrack tip inside LiTaO3 grains were detected evidently. Domain switching, crack deflection, branching and energy dissipation resulting from the formation of contrasts similar to the 180° domains at the microcrack tip, were proposed as the toughening mechanisms in LiTaO3/Al2O3 ceramics.

AB - Direct observation of crack propagation in LiTaO3/Al 2O3 composite ceramics was carried out using in situ transmission electron microscopy (TEM). Domain switching induced by crack propagation, crack deflection and branching at domain boundaries and ripples similar to the contrasts of 180° domains at the microcrack tip inside LiTaO3 grains were detected evidently. Domain switching, crack deflection, branching and energy dissipation resulting from the formation of contrasts similar to the 180° domains at the microcrack tip, were proposed as the toughening mechanisms in LiTaO3/Al2O3 ceramics.

KW - Crack propagation

KW - Domain switching

KW - LiTaO/AlO composite ceramics

KW - Toughening mechanism

KW - Transmission electron microscopy (TEM)

UR - https://www.scopus.com/pages/publications/78650196405

U2 - 10.1016/j.ceramint.2010.10.002

DO - 10.1016/j.ceramint.2010.10.002

M3 - 文章

AN - SCOPUS:78650196405

SN - 0272-8842

VL - 37

SP - 647+650

JO - Ceramics International

JF - Ceramics International

IS - 2

ER -

In situ TEM observation of crack propagation in LiTaO₃ particle toughened Al₂O₃ ceramics

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Keywords

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