CONCLUSIONS OF PREPARATION AND ANALYSIS OF BaPr(1.33)Ti(3)O(9) & BaPr(2)Ti(4)O(12) MICROWAVE DIELECTRIC CERAMICS

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  1.  Results obtained from X-ray diffraction powder patterns of barium praseodymium titanate confirms the formation of tungsten bronze type crystal structure with orthorhombic symmetry.
  2. Dielectric constant (ε') as a function of frequency at room temperature decreases for increasing Pr contents for sample 1 and 2.
  3. Loss tangent decreases with increasing Pr content linearly as a function of frequency from 100 Hz to 1 MHz.
  4. Very low AC conductivity has been observed for the prepared samples. It basically decreased with composition, but increased linearly with frequency.
  5. Variations of dielectric constant as a function of temperature at different frequencies, 100 Hz, 1 KHz, 10 KHz, 100 KHz and 1MHz, are investigated and it is found that variation in dielectric constant as a function of temperature decreases with increase in Pr contents.
  6. It can be easily concluded that reasonably good dielectric properties have been obtained for the two synthesized samples and could be used in wireless communication.  

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