Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation ωc = 20 rpm were calculated by equations of the hydrodynamics of the melt. The rate of crystal growth was experimentally obtained to be 2.7 mm/h. For chemical polishing, conc. H3PO4 at 593 K for an exposure of 3 hours was determined. Conc. H3PO4 at 523 K for an exposure of 3 h was found to be a suitable etching solution. The lattice parameters a = 0.47627(6) nm and c = 1.301(1) nm were determined by X-ray powder diffraction. The obtained results are discussed and compared with published data.
TY - JOUR
AU - Golubović, Aleksandar
AU - Nikolić, Slobodanka
AU - Đurić, Stevan
AU - Valčić, Andreja
PY - 2005
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5503
AB - Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation ωc = 20 rpm were calculated by equations of the hydrodynamics of the melt. The rate of crystal growth was experimentally obtained to be 2.7 mm/h. For chemical polishing, conc. H3PO4 at 593 K for an exposure of 3 hours was determined. Conc. H3PO4 at 523 K for an exposure of 3 h was found to be a suitable etching solution. The lattice parameters a = 0.47627(6) nm and c = 1.301(1) nm were determined by X-ray powder diffraction. The obtained results are discussed and compared with published data.
PB - Serbian Chemical Society
T2 - Journal of the Serbian Chemical Society
T1 - The growth of ruby single crystals
T1 - Раст монокристала рубина
EP - 95
IS - 1
SP - 87
VL - 70
DO - 10.2298/JSC0501087G
ER -
@article{
author = "Golubović, Aleksandar and Nikolić, Slobodanka and Đurić, Stevan and Valčić, Andreja",
year = "2005",
abstract = "Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation ωc = 20 rpm were calculated by equations of the hydrodynamics of the melt. The rate of crystal growth was experimentally obtained to be 2.7 mm/h. For chemical polishing, conc. H3PO4 at 593 K for an exposure of 3 hours was determined. Conc. H3PO4 at 523 K for an exposure of 3 h was found to be a suitable etching solution. The lattice parameters a = 0.47627(6) nm and c = 1.301(1) nm were determined by X-ray powder diffraction. The obtained results are discussed and compared with published data.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The growth of ruby single crystals, Раст монокристала рубина",
pages = "95-87",
number = "1",
volume = "70",
doi = "10.2298/JSC0501087G"
}
Golubović, A., Nikolić, S., Đurić, S.,& Valčić, A.. (2005). The growth of ruby single crystals. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 70(1), 87-95.
https://doi.org/10.2298/JSC0501087G
Golubović A, Nikolić S, Đurić S, Valčić A. The growth of ruby single crystals. in Journal of the Serbian Chemical Society. 2005;70(1):87-95.
doi:10.2298/JSC0501087G .
Golubović, Aleksandar, Nikolić, Slobodanka, Đurić, Stevan, Valčić, Andreja, "The growth of ruby single crystals" in Journal of the Serbian Chemical Society, 70, no. 1 (2005):87-95,
https://doi.org/10.2298/JSC0501087G . .
