Elastic modulus, hardness and fracture behavior of Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal

被引:18
|
作者
Zeng, Kaiyang [1 ]
Pang, Yong-Song [1 ]
Shen, Lu [2 ]
Rajan, K. K. [1 ]
Lim, Leong-Chew [1 ]
机构
[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore
[2] Inst Mat Res & Engn, Singapore 117602, Singapore
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 472卷 / 1-2期
关键词
indentation; piezo-materials; single crystal; fracture; deformation; cracks;
D O I
10.1016/j.msea.2007.03.008
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The deformation, crack initiation, fracture behavior and mechanical properties of (0 0 1)-oriented single crystal of Pb(Zn1/3Nb2/3)O-3-7% PbTiO3 (PZN-7% PT) in both unpoled and poled states have been investigated by using nanoindentation, micro-indentation and three-point bending experiments. Nanoindentation experiments revealed that, unlike typical brittle materials, material pile-ups around the indentation impressions were commonly observed at ultra-low loads. The elastic modulus and hardness were also determined by using nanoindentation experiments. The critical indentation load for crack initiation, determined by using micro-indentation experiments, is 0.135 N for unpoled samples, increasing to 0.465 N for the positive surface (crack propagation direction against the poling direction) of poled samples but decreasing slightly to 0.132 N for the negative surface (crack propagation, direction along the poling direction) of the poled samples. Indentation/strength (three-point bend) test showed a similar trend for the "apparent" fracture toughness, giving 0.36 MPa root m for unpoled samples, increasing to 0.44 MPa root m for the positive surface of poled samples but decreasing to 0.30 MPa root m for the negative surface of poled samples. Polarized light microscopy and scanning electron microscopy were used to study the material adjacent to the indentations and the fracture surfaces produced by the three-point bend tests. The results were correlated with the various fracture properties observed. (c) 2007 Elsevier B.V. All-rights reserved.
引用
收藏
页码:35 / 42
页数:8
相关论文
共 50 条
  • [21] Domain structure studies on Pb(Zn1/3Nb2/3)O3-PbTiO3 mixed crystal system
    Madeswaran, S
    Rajasekaran, S
    Jayavel, R
    Ganesamoorthy, S
    Behr, G
    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 120 (1-3): : 32 - 36
  • [22] Dielectric and piezoelectric properties of the Mn-substituted Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal
    Priya, S
    Uchino, K
    JOURNAL OF APPLIED PHYSICS, 2002, 91 (07) : 4515 - 4520
  • [23] Optimum compositions for Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal for high-performance applications
    Rajan, KK
    Zhang, MJ
    Lim, LC
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (1A): : 264 - 266
  • [24] Domain observation in Pb(Zn1/3Nb2/3)O3-PbTiO3 mixed crystals
    Iwata, M
    Araki, T
    Maeda, M
    Suzuki, I
    Ohwa, H
    Yasuda, N
    Orihara, H
    Ishibashi, Y
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2002, 41 (11B): : 7003 - 7006
  • [25] Investigation on growth defects in Pb(Zn1/3Nb2/3)O3-PbTiO3 crystals
    Jin, Min
    Xu, Jiayue
    Shi, Minli
    Fan, Shiji
    CRYSTAL RESEARCH AND TECHNOLOGY, 2006, 41 (11) : 1067 - 1071
  • [26] Temperature dependence of electrostriction in rhombohedral Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystals
    Liu, SF
    Park, SE
    Cross, LE
    Shrout, TR
    JOURNAL OF APPLIED PHYSICS, 2002, 92 (01) : 461 - 467
  • [27] PIEZOELECTRIC PROPERTIES OF PB(ZN1/3NB2/3)O3-PBTIO3 PREPARED BY HIP
    TAKENAKA, T
    MURAMATSU, K
    FUJIU, T
    FERROELECTRICS, 1992, 134 (1-4) : 133 - 138
  • [28] PHASE TRANSITIONS IN THE Pb(Zn1/3Nb2/3)O3-PbTiO3 SYSTEM.
    Kuwata, Jun
    Uchino, Kenji
    Nomura, Shoichiro
    Ferroelectrics, 1981, 37 (1 -4 Pt 3) : 579 - 582
  • [29] Phase stabilities of "morphotropic" phases in Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystals
    Lu, Y
    Jeong, DY
    Cheng, ZY
    Shrout, T
    Zhang, QM
    APPLIED PHYSICS LETTERS, 2002, 80 (11) : 1918 - 1920
  • [30] Pb(Zn1/3Nb2/3)O-3-PbTiO3 single crystal and device development
    Lim, L. C.
    Zhang, S.
    Xia, Y. X.
    Lin, D. H.
    Goh, N. H. L.
    JOURNAL OF ADVANCED DIELECTRICS, 2014, 4 (01)