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Measurement of the Fracture Toughness and Critical Stress for Cracking in SnO2 Nanobelts Using Nanoindentation |
WANG Yugui; QIAO Lijie; GAO Kewei; SU Yanjing; CHU Wuyang; WANG Zhonglin |
Department of Materials Physics; University of Science and Technology Beijing; Beijing 100083 |
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Cite this article:
WANG Yugui; QIAO Lijie; GAO Kewei; SU Yanjing; CHU Wuyang; WANG Zhonglin. Measurement of the Fracture Toughness and Critical Stress for Cracking in SnO2 Nanobelts Using Nanoindentation. Acta Metall Sin, 2004, 40(6): 594-.
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Abstract The hardness, fracture toughness and the critical stress for crack initiation of single crystalline nanobelts have been measured using nanoindentation method. The result showed that a sudden depth excursion occurred in the load--depth curves which corresponds to initiation of an indentation crack. The critical stress for the crack initiation. which is one order of magnitude less than that of the other bulk brittle materials. The average values of the hardness and modulus are
H=6.25 GPa and E=86.7 GPa, respectively.
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Received: 10 June 2003
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[1] Pan Z W, Dai Z R, Wang Z L. Science, 2001; 291: 1947 [2] Dai Z R, Pan Z W, Wang Z L. Solid State Commu, 2001;118: 351 [3] Watson J. Sensors Actuators, 1984; 5: 29 [4] Tatsuyama C, Ichimura S. Jpn J App Phys, 1976; 15: 843 [5] Pharr G M. Mater Sci Eng, 1998; A253: 151 [6] Oliver W C, Pharr G M. J Mater Res, 1992; 7: 1564 [7] Bahr D F, Kramer D E, Gerberich W W. Acta Mater,1998; 46: 3605 [8] Pethica J B, Hutchings R, Oliver W C. Philos Mag, 1983;A48: 593 [9] Doerner M F, Gardner D S, Nix W D. J Mater Res, 1986;1: 845 [10] Pang M, Eakins D E, Norton M G, Bahr D F. Corrosion,2001; 57: 523 |
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