Study program to develop and evaluate die and cntainer materials for the growth of silicon ribbons. Quarterly report No. 3
Die and container material development efforts under the current program are shared among three organizations. Miami Research Laboratories (MRL)--ceramic process development and overall program management, University of Missouri--Rolla (UMR)--silicon sessile drop studies with characterization of reaction products and emphasis on atmospheric effects, Chemetal Corporation, Pacoima, California--special coatings to be applied to test coupons, die shapes and containers provided by MRL and tested/characterized by UMR. Initial sessile drop experiments on SiC, Si/sub 3/N/sub 4/ and AlN have been conducted. Very promising results have been achieved on both SiC and Si/sub 3/N/sub 4/ where minimal penetration of these (Controlled Nucleation by Thermochemical Decomposition) CNTD coatings by molten silicon was observed. Efforts continued in the following areas. At MRL, a set of AlN and another set of Si/sub 3/N/sub 4/ substrates have been hot pressed. Hot pressing experiments have begun on crucible shapes. Characterization efforts have also begun on coatings and substrates. Chemetal delivered AlN coated substrates and began development efforts to produce Si-O-N coatings as predecessor to Si-O-Al-N coatings. UMR has succeeded in measuring the lowest oxygen partial pressures measured, to the knowledge of the investigators, with a solid electrolyte cell on a dynamic flowing gas buffer system. This was achieved with a yttria doped thoria oxygen sensor cell. Even lower pressures beyond this measurement capability have been achieved.
- Research Organization:
- Eagle-Picher Industries, Inc., Miami, OK (USA). Miami Research Labs.
- DOE Contract Number:
- NAS-7-100-954877
- OSTI ID:
- 6551200
- Report Number(s):
- DOE/JPL/954877-3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study program to develop and evaluate die and container materials for the growth of silicon ribbons. Quarterly report No. 5
Effects of varying oxygen partial pressre on molten silicon: ceramic substrate interactions, final report
Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM NITRIDES
SURFACE COATING
CRUCIBLES
HOT PRESSING
DIES
SILICON CARBIDES
SILICON NITRIDES
AUGER ELECTRON SPECTROSCOPY
COATINGS
CONTAINERS
FABRICATION
SILICON SOLAR CELLS
SUBSTRATES
X-RAY DIFFRACTION
YTTRIUM OXIDES
ALUMINIUM COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
DEPOSITION
DIFFRACTION
DIRECT ENERGY CONVERTERS
ELECTRON SPECTROSCOPY
MATERIALS WORKING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PNICTIDES
PRESSING
SCATTERING
SILICON COMPOUNDS
SOLAR CELLS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion
360603 - Materials- Properties
360601 - Other Materials- Preparation & Manufacture