Author: Sencadas V.
Publisher: Taylor & Francis Ltd
ISSN: 0015-0193
Source: Ferroelectrics, Vol.370, Iss.1, 2008-01, pp. : 29-35
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Abstract
Oriented -phase films were obtained by drawing exclusively -phase films obtained from dimethylformamide solution crystallization at 60 °C with subsequent pressing. Wide angle X-ray diffraction and pole figure plots showed that drawing at 90°C and with R = 4 of originally -phase films results in exclusively -phase films with crystallinity degree of 49% and orientation factor of 0.885. For comparison, with the conventional drawing technique from α-phase material, films oriented at a ratio (R) of 5 still contain about 20% of phase α, a crystallinity degree of 40% and -phase crystallographic c-axis orientation factor of 0.655.
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