Results 171 to 180 of about 2,133 (223)
Some of the next articles are maybe not open access.
Chaotic asymmetric convection in the Bridgman-Stockbarger technique
Journal of Crystal Growth, 1986Convection was observed in naphthalene in a vertical Bridgman-Stockbarger arrangement. Differing from the assumptions of the theorists, the flow was neither steady nor axi-symmetric because of the heating and cooling conditions employed. It is suggested that such irregular convection may be common and cause compositional striations and azimuthal ...
Hilary Potts, William R. Wilcox
openaire +1 more source
Crystal growth of Cr3+:LiCaAlF6 by Bridgman technique
Journal of Crystal Growth, 1996Abstract In this paper, the crystal growth technique of the tunable laser material, Cr 3+ :LiCaAlF 6 by the Bridgman method is discussed. High-quality single crystals with dimensions of up to 10 × 120 mm and 20 × 80 mm have been grown. Flashlamp-pumped operation of a Cr:LiCAF laser rod has provided an electrical slope efficiency of 1.07%.
Yingcai Wang +3 more
openaire +1 more source
Growth of CdTe crustals by the vertical bridgman technique
Journal of Crystal Growth, 1985Abstract CdTe crystals were grown by the vertical Bridgman technique and the quality of the crystals was examined. It was found that under optimized conditions crystals with lower defect density and with higher crystal perfectness can be obtained.
O. Oda +3 more
openaire +1 more source
Investigation of crystal growth by a transient Bridgman technique
Journal of Crystal Growth, 1983Abstract The growth of TIBr by the Bridgman method is observed for a sequence of discrete sudden displacements between furnace and ampoule. For long times the crystal length follows an e-function. A linear heat flow and linear growth kinetics are considered for analysing the growth.
E. Schönherr, E. Dieguez
openaire +1 more source
Cdte and CdZnTe crystal growth by horizontal bridgman technique
Journal of Crystal Growth, 1990By means of the horizontal modified Bridgman technique, CdTe and CdZnTe crystals have been grown. The conditions of synthesis have been described and a modified gradient freeze technique has been experimented and proposed. By modifying the transverse gradient, nature of the boat, gas overpressure and temperature cycles, different growths have been ...
P. Cheuvart +3 more
openaire +1 more source
Bulk crystals of tetracene grown by the vapor-Bridgman technique
Applied Physics Letters, 2005A universal approach is described for preparing single crystals of organic materials that can only be sublimed, in this case tetracene, with extensions of several millimeters along all three dimensions. It is observed that crystals grown by this technique are more brittle than crystals grown by conventional sublimation methods.
J. Niemax, J. Pflaum
openaire +1 more source
ZnTeO 3 crystal growth by a modified Bridgman technique
Materials Research Bulletin, 2014Abstract Zinc Tellurite (ZnTeO 3 ) crystals were grown for the first time using a modified Bridgman method with a 2.5 kHz radio frequency (RF) furnace. Single crystal growth of ZnTeO 3 was hindered by many complicating factors, such as the evaporation of TeO 2 above 700 °C and the formation of more than one phase during crystal growth.
Jalal M. Nawash, Kelvin G. Lynn
openaire +1 more source
Control of interface shape in the vertical bridgman-stockbarger technique
Journal of Crystal Growth, 1974Abstract At very slow travel rates the solid-liquid interface shape (from the viewpoint of the solid) is convex when it lies within the heater and concave when it lies within the cooler. The dependence of interface position on travel rate, geometry of the ampoule, and on the relative temperatures of the heater and cooler increases as the ...
Chong E. Chang, William R. Wilcox
openaire +1 more source
Growth of CdTel−x Sex by the LEC and bridgman techniques
Journal of Electronic Materials, 1975Large-grain CdTel−x Sex boules with X (nominal) = 0.05, 0.10 and 0.15 have been grown by the liquid-encapsulated Czochralski technique, using B2O3 as the encapsulant, and also by a modified Bridgman technique. An argon pressure of 20 atm was used in both techniques. Details of the growth apparatus and procedure are presented.
N. Klausutis +5 more
openaire +1 more source
Simple adaptation of the Bridgman high pressure technique for use with liquid media
Review of Scientific Instruments, 2007We present a simple novel technique to adapt a standard Bridgman cell for the use of a liquid pressure transmitting medium. The technique has been implemented in a compact cell, able to fit in a commercial Quantum Design PPMS system, and would also be easily adaptable to extreme conditions of very low temperatures or high magnetic fields. Several media
E, Colombier, D, Braithwaite
openaire +2 more sources