Casting large silicon crystals in clear silica crucibles
Journal Article
·
· Am. Ceram. Soc. Bull.; (United States)
OSTI ID:6517993
Silicon crystals were cast by a directional solidification technique which uses a high temperature heat exchanger to extract heat from the bottom of the crystal. This method has been used effectively to grow sapphire crystals (up to 25 cm in diameter and weighing 30 kg). Silicon forms a tenacious bond with clear fused silica which results in cracking during cooling. Cracking can be limited to the outside surface by using thin walled crucibles. The heat-exchanger method has been used to produce silicon for use in solar cells. (FS)
- Research Organization:
- Crystal Systems, Inc., Salem, MA
- OSTI ID:
- 6517993
- Journal Information:
- Am. Ceram. Soc. Bull.; (United States), Journal Name: Am. Ceram. Soc. Bull.; (United States) Vol. 57:6; ISSN ACSBA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALKALINE EARTH METALS
ALLOYS
ALUMINIUM
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BERYLLIUM
BERYLLIUM ADDITIONS
BERYLLIUM ALLOYS
CASTING
CHALCOGENIDES
COOLING
CRACKS
CRUCIBLES
DIRECT ENERGY CONVERTERS
ELEMENTS
FABRICATION
HEAT EXCHANGERS
INTERFACES
METALLURGICAL EFFECTS
METALS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SEMIMETALS
SILICA
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SILICON SOLAR CELLS
SOLAR CELLS
SOLIDIFICATION
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALKALINE EARTH METALS
ALLOYS
ALUMINIUM
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BERYLLIUM
BERYLLIUM ADDITIONS
BERYLLIUM ALLOYS
CASTING
CHALCOGENIDES
COOLING
CRACKS
CRUCIBLES
DIRECT ENERGY CONVERTERS
ELEMENTS
FABRICATION
HEAT EXCHANGERS
INTERFACES
METALLURGICAL EFFECTS
METALS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SEMIMETALS
SILICA
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SILICON SOLAR CELLS
SOLAR CELLS
SOLIDIFICATION
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES