STRUCTURAL AND MECHANICAL PROPERTIES ON Tb3+ DOPED KBr SINGLE CRYSTALS
| Author(s) | : | S.Bharani, S.Bangaru |
| Institution | : | Ph. D Research Scholar in Physics, Arignar Anna Govt. Arts College, Namakkal-637002 |
| Published In | : | Vol. 4, Issue 17 — January 2017 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Tb3+doped KBr single crystals is grown by Bridgeman Stockbarger technique. The grown crystal wassubjected to powder X-ray Diffraction (PXRD), Fourier Transform Infrared analysis (FTIR) and Vicker’s microhardness(Hv). The average crystallite size was calculated using well known Debye Scherrer’s formula and found in the rangeof 8.5μm. The presence of various functional groups has been identified from FTIR studies with their vibratingfrequencies. The mechanical property was studied by vicker’s microhardness indenter. Vicker’s hardness value (Hv) arecalculated for selected applied load and it is found to be increasing with increasing applied load. The Mayer’sindex number(n) is calculated to be 0.3, the crystal system belongs to hard material category. The Elastic stiffnessconstant (C11) value is 5989X1011MPa which is calculated using Wooster’s empirical relation.
S.Bharani, S.Bangaru, “STRUCTURAL AND MECHANICAL PROPERTIES ON Tb3+ DOPED KBr SINGLE CRYSTALS”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 17, pp. -, January 2017.
