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Silicon halide-alkali metal flames as a source of solar grade silicon (Document No: 19790015354)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Olson, D. B. Gould, R. K. |
| Copyright Year | 1979 |
| Description | A program is presented which was aimed at determining the feasibility of using high temperature reactions of alkali metals and silicon halides to produce low cost solar-grade silicon. Experiments are being conducted to evaluate product separation and collection processes, measure heat release parameters for scaling purposes, and determine the effects of the reactants and/or products on materials of reactor construction. During the current reporting period, the results of heat release experiments were used to design and construct a new type of thick-wall graphite reactor to produce larger quantities of silicon. A reactor test facility was constructed. Material compatibility tests were performed for Na in contact with graphite and several coated graphites. All samples were rapidly degraded at T = 1200K, while samples retained structural strength at 1700K. Pyrolytic graphite coatings cracked and separated from substances in all cases. |
| File Size | 739958 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790015354 |
| Archival Resource Key | ark:/13960/t2r54fb1r |
| Language | English |
| Publisher Date | 1979-04-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Test Facilities Diffusion Flames Halides Alkali Metals Technology Assessment Graphite Silicon Chemical Reactors Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
