nonlinear optical materials (NLO);
organic compounds;
mechanical properties;
PSR model;
D O I:
10.1016/j.msea.2006.08.103
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
The results of Vickers microhardness measurement for different crystallographic planes of nonlinear optical crystal L-arginine acetate (LAA) have been reported. Hardness of LAA is found to be influenced by anisotropic property of the crystal. The variation in the microhardness value with load is nonlinear for all planes considered here. Kick's law, modified law proposed by Hays and Kendall fail to explain the observed variations. But the variation could be best explained by PSR model proposed by Li and Bradt. Values of work hardening index n for all the planes are found to be greater than 1.6 which indicates that LAA is a soft crystal. (c) 2006 Elsevier B.V. All rights reserved.
机构:
PG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, IndiaPG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, India
Ravi Kumar, S.M.
Selvakumar, S.
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机构:
Department of Physics, Govt. Arts and Science College, Nandanam, Chennai,600 035, IndiaPG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, India
Selvakumar, S.
Gunaseelan, R.
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机构:
Department of Physics, Loyola College, Chennai,600 034, IndiaPG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, India
Gunaseelan, R.
Shanmuga Sundar, G.J.
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机构:
Department of Physics, Arignar Anna Govt. Arts College, Cheyyar,604 407, IndiaPG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, India
Shanmuga Sundar, G.J.
Sagayaraj, P.
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h-index: 0
机构:
Department of Physics, Loyola College, Chennai,600 034, IndiaPG and Research Department of Physics, Govt. Arts College, Thiruvannamalai,606 603, India
Sagayaraj, P.
Proceedings of the Indian National Science Academy,
2013,
79
(03):
: 417
-
422