Low cost silicon solar array project silicon materials task: establishment of the feasibility of a process capable of low-cost, high volume production of silane (step 1) and the pyrolysis of silane to semiconductor-grade silicon (step 2). Quarterly progress report, Jul--Sep 1977
Extended operation of a small process-development unit routinely produced high quality silane in 97+% yield from dichlorosilane. The production rate was consistent with design loadings for the fractionating column and for the redistribution reactor. A glass fluid-bed reactor was constructed for room temperature operation. The behavior of a bed of silcon particles was observed as a function of various feedstocks, component configurations, and operating conditions. For operating modes other than spouting, the bed behaved in an erratic and unstable manner. A method was developed for casting molten silicon powder into crack-free solid pellets for process evaluation. The silicon powder was melted and cast into thin walled quartz tubes that sacrificially broke on cooling.
- Research Organization:
- Union Carbide Corp., New York (USA)
- OSTI ID:
- 6498190
- Report Number(s):
- N-78-24623; NASA-CR-157100; QPR-8
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low cost silicon solar array project silicon materials task: establishment of the feasibility of a process capable of low-cost, high volume production of silane (step 1) and the pyrolysis of silane to semiconductor-grade silicon (step 2). Quarterly progress report, Oct--Dec 1977
Establishment of the feasibility of a process capable of low cost, high volume production of silane (Phase I), and the pyrolysis of silane to semiconductor-grade silicon (Phase II). Low Cost Silicon Solar Array Project, Task I. Quarterly progress report, April--June 1977
Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CASTING
CHEMICAL REACTIONS
CHEMICAL REACTORS
DECOMPOSITION
DIRECT ENERGY CONVERTERS
ELEMENTS
FABRICATION
FLUIDIZED BED
HYDRIDES
HYDROGEN COMPOUNDS
PELLETS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHOTOVOLTAIC POWER PLANTS
POWDERS
POWER PLANTS
PRODUCTION
PYROLYSIS
SEMIMETALS
SILANES
SILICON
SILICON COMPOUNDS
SILICON SOLAR CELLS
SOLAR CELL ARRAYS
SOLAR CELLS
SOLAR POWER PLANTS
THERMOCHEMICAL PROCESSES