Polarization toughening of LiTaO3 particles dispersed Al 2O3 ceramic composite

Y. G. Liu; Y. Zhou; D. C. Jia; Y. Z. Li

doi:10.1016/j.ceramint.2004.03.038

Polarization toughening of LiTaO₃ particles dispersed Al ₂O₃ ceramic composite

Y. G. Liu^*
, Y. Zhou
, D. C. Jia
, Y. Z. Li

^*Corresponding author for this work

Harbin Institute of Technology
Tsinghua University
757 Res. Inst. of Heilongjiang Prov.

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

4 Scopus citations

Abstract

Effect of polarization treatment on the mechanical properties of 15 vol.% LiTaO₃/Al₂O₃ ceramic composite (denoted 1SLTA) hot pressed at 1300°C was investigated and discussed. It was found that polarization treated along the width of bending specimens, both improved the flexural strength and the fracture toughness of the composite. The mechanical properties of polarization treated 15LTA ceramic composite almost returned to the original state after inverse polarization treatment. The changes in mechanical properties of 15LTA composite were related to the residual polarization in LiTaO₃ particles. Crack detour around LiTaO ₃ particles, crack deflection and branching caused by domains and domain switching induced by propagating crack were the three main factors for the improvement of the mechanical properties of LTA ceramic composite polarization treated along the width.

Original language	English
Pages (from-to)	81-83
Number of pages	3
Journal	Ceramics International
Volume	31
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2004.03.038
State	Published - 2005
Externally published	Yes

Keywords

Ceramic composite
D. AlO
LiTaO
Polarization
Toughening

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10.1016/j.ceramint.2004.03.038

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title = "Polarization toughening of LiTaO3 particles dispersed Al 2O3 ceramic composite",

abstract = "Effect of polarization treatment on the mechanical properties of 15 vol.\% LiTaO3/Al2O3 ceramic composite (denoted 1SLTA) hot pressed at 1300°C was investigated and discussed. It was found that polarization treated along the width of bending specimens, both improved the flexural strength and the fracture toughness of the composite. The mechanical properties of polarization treated 15LTA ceramic composite almost returned to the original state after inverse polarization treatment. The changes in mechanical properties of 15LTA composite were related to the residual polarization in LiTaO3 particles. Crack detour around LiTaO 3 particles, crack deflection and branching caused by domains and domain switching induced by propagating crack were the three main factors for the improvement of the mechanical properties of LTA ceramic composite polarization treated along the width.",

keywords = "Ceramic composite, D. AlO, LiTaO, Polarization, Toughening",

author = "Liu, \{Y. G.\} and Y. Zhou and Jia, \{D. C.\} and Li, \{Y. Z.\}",

year = "2005",

doi = "10.1016/j.ceramint.2004.03.038",

language = "英语",

volume = "31",

pages = "81--83",

journal = "Ceramics International",

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publisher = "Elsevier Ltd",

number = "1",

}

TY - JOUR

T1 - Polarization toughening of LiTaO3 particles dispersed Al 2O3 ceramic composite

AU - Liu, Y. G.

AU - Zhou, Y.

AU - Jia, D. C.

AU - Li, Y. Z.

PY - 2005

Y1 - 2005

N2 - Effect of polarization treatment on the mechanical properties of 15 vol.% LiTaO3/Al2O3 ceramic composite (denoted 1SLTA) hot pressed at 1300°C was investigated and discussed. It was found that polarization treated along the width of bending specimens, both improved the flexural strength and the fracture toughness of the composite. The mechanical properties of polarization treated 15LTA ceramic composite almost returned to the original state after inverse polarization treatment. The changes in mechanical properties of 15LTA composite were related to the residual polarization in LiTaO3 particles. Crack detour around LiTaO 3 particles, crack deflection and branching caused by domains and domain switching induced by propagating crack were the three main factors for the improvement of the mechanical properties of LTA ceramic composite polarization treated along the width.

AB - Effect of polarization treatment on the mechanical properties of 15 vol.% LiTaO3/Al2O3 ceramic composite (denoted 1SLTA) hot pressed at 1300°C was investigated and discussed. It was found that polarization treated along the width of bending specimens, both improved the flexural strength and the fracture toughness of the composite. The mechanical properties of polarization treated 15LTA ceramic composite almost returned to the original state after inverse polarization treatment. The changes in mechanical properties of 15LTA composite were related to the residual polarization in LiTaO3 particles. Crack detour around LiTaO 3 particles, crack deflection and branching caused by domains and domain switching induced by propagating crack were the three main factors for the improvement of the mechanical properties of LTA ceramic composite polarization treated along the width.

KW - Ceramic composite

KW - D. AlO

KW - LiTaO

KW - Polarization

KW - Toughening

UR - https://www.scopus.com/pages/publications/9644303549

U2 - 10.1016/j.ceramint.2004.03.038

DO - 10.1016/j.ceramint.2004.03.038

M3 - 文章

AN - SCOPUS:9644303549

SN - 0272-8842

VL - 31

SP - 81

EP - 83

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

Polarization toughening of LiTaO₃ particles dispersed Al ₂O₃ ceramic composite

Abstract

Keywords

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