Enhancement of structural perfection of alkali halide single crystals by doping with copper
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Enhancement of structural perfection of alkali halide single crystals by doping with copper
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| Creator |
Daniel, D. Joseph
Ramasamy, P. Madhusoodanan, U. Bhagavannarayana, G. |
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| Subject |
Crystallography
Materials Science Applied Physics/Condensed Matter |
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| Description |
The pure and copper (Cu+) doped alkali halide single crystals have been grown from melt by using the Czochralski (Cz) method. The optical absorption studies confirm that the doped copper is incorporated with the grown crystals. The effect of doping on crystalline perfection of grown crystals was analyzed by high resolution X-ray diffraction (HRXRD) measurements. The HRXRD results clearly reveal that the Cu+ doped crystals are having higher crystalline perfection than pure crystals. The mechanical behavior of the grown crystals was measured by the Vickers microhardness measurement. The hardness value of the crystals increases with an increase in load and thereafter it becomes independent of the applied load. The Meyer index number and hardness using Hays-Kendall approach of pure and doped crystals were calculated and tabulated.
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| Publisher |
Elsevier
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| Date |
2012-08-15
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3581/1/Enhancement%20of%20structural%20perfection.pdf
Daniel, D. Joseph and Ramasamy, P. and Madhusoodanan, U. and Bhagavannarayana, G. (2012) Enhancement of structural perfection of alkali halide single crystals by doping with copper. Journal of Crystal Growth, 353 (1). pp. 95-100. ISSN 0022-0248 |
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| Relation |
http://npl.csircentral.net/3581/
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