Effects of polarization treatment on mechanical properties of Al 2O3/LiTaO3 composite ceramics

Youfeng Zhang; Qingchang Meng; Dechang Jia; Yu Zhou

doi:10.4028/0-87849-456-1.1314

Effects of polarization treatment on mechanical properties of Al ₂O₃/LiTaO₃ composite ceramics

Youfeng Zhang^*
, Qingchang Meng
, Dechang Jia
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Al₂O₃/LiTaO₃ (ALT) composite ceramics were fabricated by hot pressing method and polarization treated at different temperatures along height and width directions. Effects of polarization treatment on mechanical properties of the ALT composite ceramic were investigated. Flexural strength decreased with the increase of polarization temperature. Meanwhile, the flexural strength of samples polarized in height direction is higher than that polarized in width direction. The composite ceramic fractures intragranularly, and many rupture steps in polarization direction were observed on fractographs of the composite ceramics. Domain switching in LiTaO₃ particles increased the resistance of crack propagation and improved the mechanical properties of the polarized ALT composite ceramics.

Original language	English
Pages (from-to)	1314-1317
Number of pages	4
Journal	Key Engineering Materials
Volume	353-358
Issue number	PART 2
DOIs	https://doi.org/10.4028/0-87849-456-1.1314
State	Published - 2007
Event	Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: 22 Nov 2006 → 25 Nov 2006

Keywords

AlO
Composite ceramic
LiTaO
Polarization treatment

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10.4028/0-87849-456-1.1314

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title = "Effects of polarization treatment on mechanical properties of Al 2O3/LiTaO3 composite ceramics",

abstract = "The Al2O3/LiTaO3 (ALT) composite ceramics were fabricated by hot pressing method and polarization treated at different temperatures along height and width directions. Effects of polarization treatment on mechanical properties of the ALT composite ceramic were investigated. Flexural strength decreased with the increase of polarization temperature. Meanwhile, the flexural strength of samples polarized in height direction is higher than that polarized in width direction. The composite ceramic fractures intragranularly, and many rupture steps in polarization direction were observed on fractographs of the composite ceramics. Domain switching in LiTaO3 particles increased the resistance of crack propagation and improved the mechanical properties of the polarized ALT composite ceramics.",

keywords = "AlO, Composite ceramic, LiTaO, Polarization treatment",

author = "Youfeng Zhang and Qingchang Meng and Dechang Jia and Yu Zhou",

year = "2007",

doi = "10.4028/0-87849-456-1.1314",

language = "英语",

volume = "353-358",

pages = "1314--1317",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd",

number = "PART 2",

note = "Asian Pacific Conference for Fracture and Strength (APCFS'06) ; Conference date: 22-11-2006 Through 25-11-2006",

}

TY - JOUR

T1 - Effects of polarization treatment on mechanical properties of Al 2O3/LiTaO3 composite ceramics

AU - Zhang, Youfeng

AU - Meng, Qingchang

AU - Jia, Dechang

AU - Zhou, Yu

PY - 2007

Y1 - 2007

N2 - The Al2O3/LiTaO3 (ALT) composite ceramics were fabricated by hot pressing method and polarization treated at different temperatures along height and width directions. Effects of polarization treatment on mechanical properties of the ALT composite ceramic were investigated. Flexural strength decreased with the increase of polarization temperature. Meanwhile, the flexural strength of samples polarized in height direction is higher than that polarized in width direction. The composite ceramic fractures intragranularly, and many rupture steps in polarization direction were observed on fractographs of the composite ceramics. Domain switching in LiTaO3 particles increased the resistance of crack propagation and improved the mechanical properties of the polarized ALT composite ceramics.

AB - The Al2O3/LiTaO3 (ALT) composite ceramics were fabricated by hot pressing method and polarization treated at different temperatures along height and width directions. Effects of polarization treatment on mechanical properties of the ALT composite ceramic were investigated. Flexural strength decreased with the increase of polarization temperature. Meanwhile, the flexural strength of samples polarized in height direction is higher than that polarized in width direction. The composite ceramic fractures intragranularly, and many rupture steps in polarization direction were observed on fractographs of the composite ceramics. Domain switching in LiTaO3 particles increased the resistance of crack propagation and improved the mechanical properties of the polarized ALT composite ceramics.

KW - AlO

KW - Composite ceramic

KW - LiTaO

KW - Polarization treatment

UR - https://www.scopus.com/pages/publications/36048957932

U2 - 10.4028/0-87849-456-1.1314

DO - 10.4028/0-87849-456-1.1314

M3 - 会议文章

AN - SCOPUS:36048957932

SN - 1013-9826

VL - 353-358

SP - 1314

EP - 1317

JO - Key Engineering Materials

JF - Key Engineering Materials

IS - PART 2

T2 - Asian Pacific Conference for Fracture and Strength (APCFS'06)

Y2 - 22 November 2006 through 25 November 2006

ER -

Effects of polarization treatment on mechanical properties of Al ₂O₃/LiTaO₃ composite ceramics

Abstract

Keywords

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