PROPERTIES OF ULTRAFINE GRAINED BATI03 SUPER-PRESSED AT LOW TEMPERATURES.
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J
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High purity, ultra-fine-grained BaTi03 powder has been densified by squeezing in a hexahedral press at pressures of 50 kilobars and temperatures in the range of 125 to 720 C. X-ray diffraction patterns of the pressed material indicate that strain andor particle reduction have resulted from application of the pressure. Electrical data show that a wide range of dielectric constants were obtained for these bodies, depending on the pressing temperatures. The bodies showed a high degree of temperature stability of dielectric constant due to complete suppression of the curie temperature. Samples having an ultra-fine grained 0.05 microns, uniform microstructure have been obtained. Author
- Ceramics, Refractories and Glass
- Miscellaneous Materials