THE SINTERING OF BeO TO VARIABLE DENSITIES AND GRAIN SIZES
A description is given of the preparation of BeO samples for study of the effects of irradiation including the influence of purity, additives, porosity, and grain size. These samples were prepared from three commercially available grades of BeO using extrusion and sintering as the main means of fabrication. One grade of BeO contained some long needle-like particles and preferred orientation was observed in extruded samples from this material. The sintering behavior generally followed the normally observed characteristics. Low density material, prepared by adding an organic material, however, showed the predicted behavior expected from the presence of pores about 10 microns in diameter. The BeO powder characteristics are given along with the sintering data and photomicrographs of typical samples. The grain growth versus time at temperature for densities of 2.80, 2.75, and 2.95 gms/ cm/sup 3/ are shown for grain sizes up to 100 microns. (auth)
- Research Organization:
- General Electric Co. Advanced Technology Services, Cincinnati
- DOE Contract Number:
- AT(40-1)-2847
- NSA Number:
- NSA-17-037489
- OSTI ID:
- 4630593
- Report Number(s):
- GEMP-219
- Country of Publication:
- United States
- Language:
- English
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