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Showing 1 to 8 of 8 for “"Vertical Bridgman"”.
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Crystal growth and segregation in vertical Bridgman configuration
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1984.
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Effect of Anisotropic Solid-Phase Thermal Conductivity on Vertical Bridgman Growth
The results for Bridgman growth of thermally anisotropic materials are illustrated for benzene, for which the thermal conductivity has been measured parallel and perpendicular to the growth direction of directionally solidified specimens. We study the effects of anisotropy by performing …
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Modeling the linkages between heat transfer and microdefect formation in crystal growth : examples of Czochralski growth of silicon and vertical Bridgman growth of bismuth germanate
… bismuth germanium oxide (Bi4Ge30 12:BGO) by the vertical Bridgman method. A sequential, two-step approach is taken for linking mathematical modeling between processing conditions and microdefect formation in crystals. An accurate model of heat transfer in CZ growth of silicon is developed by …
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The Effects of Peltier Marking on Semiconductor Growth in a Magnetic Field
… for three dimensional semiconductor growth in a vertical Bridgman process within an externally applied magnetic field with the additional effects of Peltier marking. The magnetic field is strong enough that inertial effects can be neglected and that viscous effects are confined to boundary …
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Growth, Characterization, and Surface Modification of Gallium Telluride For Radiation Detection
… ingots. The second method uses a modified vertical Bridgman method which was designed and installed in our laboratory. For both growth methods, high purity (7N) Ga and zone refined (ZR) Te precursors were used, and the crystal growth was performed through a pre-determined temperature …
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Gravitational effects on defect formation in melt grown photorefractive materials : bismuth silicate
… material; development and characterization of a vertical Bridgman-Stockbarger growth system with a quantifiable, reproducible, and controllable thermal environment; and Bridgman-Stockbarger growth experiments. A comparative analysis of crystals was done in order to establish the relationship …
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Modeling and control of cadmium zinc telluride grown via an electro-dynamic gradient freeze furnace.
… single crystal cadmium zinc telluride (CZT) in a vertical Bridgman (VB) furnace. Additionally, we investigate new mathematical algorithms for improved solving capability of equations that describe such crystal growth systems. A two-dimensional crystal growth model for the simulation of bulk …
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Melt growth of BSO (Bi₁₂SiO₂₀) : critical issues for growth in a micro-g environment
… resolve some critical issues associated with the Bridgman growth of BSO under the microgravity conditions, which can be divided into three phases according to the subject in each phase. (1) The wetting behavior between BSO and the confinement material, platinum, is critical in a Bridgman type of …