Growth, mechanical and domain structure studies of Na0.5Bi0.5TiO3 single crystal grown by flux growth method

Babu, P. Ramesh; Selvamani, Rachna; Kalainathan, S.; Babu, R. Dayakar; Tiwari, Vaibhav

doi:10.1016/j.jallcom.2017.05.318

Cited by 6 publications

(1 citation statement)

References 26 publications

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“…Fang et al investigated the interactions between the crack propagation and domain switching in poled BaTiO 3 single crystals under a mechanical load [31]. Babu et al performed the Vickers microhardness test on a <001>-cut Na 1/2 Bi 1/2 TiO 3 single crystal and calculated its fracture toughness and brittleness index from the R-curve [32]. Zhou et al investigated the electric field-dependent mechanical properties of the PMN-PT single crystal by electromechanical-coupled nanoindentation [33].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Mechanical Properties of PIN–PMN–PT Bulk Single Crystals by Nanoindentation

Zhang

Xing

et al. 2020

Crystals

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The present study aimed to experimentally evaluate the mechanical properties of Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 (PIN–PMN–PT) bulk single crystals with different crystallographic directions using the nanoindentation technique. The load–indentation depth curves, elastic and plastic deformations, hardnesses, and Young’s moduli of [100]- and [110]-oriented 0.28PIN–0.43PMN–0.29PT bulk single crystals were investigated. Our results show that with an increase in the maximum indentation depth hmax, the plastic residual percentage increased for both the [100]- and the [110]-oriented single crystals. At each hmax, the plastic residual percentage of the [100]-oriented PIN–PMN–PT single crystals was less than that of the [110]-oriented PIN–PMN–PT single crystals. At hmax from 500 nm to 2000 nm, the plastic deformation was larger than the elastic deformation, and the plastic residual percentage was larger than 50% for both the [100]- and the [110]-oriented single crystals. This means that the plastic deformation dominated in the indentation process of PIN–PMN–PT single crystals. The indentation size effect on the hardness of the PIN–PMN–PT single crystals was apparent in the nanoindentation process. Both the hardness and the Young’s modulus of the [100]-PIN–PMN–PT single crystals were greater than those of the [110]-PIN–PMN–PT single crystals, which indicates that the PIN–PMN–PT single crystals had anisotropic mechanical characteristics.

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Section: Introductionmentioning

confidence: 99%