Behaviour of LaAlO3+LnTiTaO6 (Ln= Ce, Pr or Nd) dielectric ceramic mixtures

Bulletin of materials science

Sam Solomon¹ 

[1] Department of Physics, St. John’s College, Anchal 691 306, India$$Mar Ivanios College, Trivandrum 695 015, India$$Department of Physics, St. John’s College, Anchal 691 306, IndiaDepartment of Physics, St. John’s College, Anchal 691 306, India$$Mar Ivanios College, Trivandrum 695 015, India$$Mar Ivanios College, Trivandrum 695 015, IndiaDepartment of Physics, St. John’s College, Anchal 691 306, India$$Mar Ivanios College, Trivandrum 695 015, India$$

关键词: Mixture;    microwave;    dielectric;    microstructure;    resonance;    optical.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The 0.1LaAlO₃+0.9LnTiTaO₆ (Ln= Ce, Pr or Nd) ceramics are prepared through solid state ceramic route. The structure of the materials is studied using X-ray diffraction analysis. The microstructure is analysed using scanning electron microscopy. The dielectric properties in the radio as well as in the microwave frequencies are measured and discussed. The photoluminescence of a representative sample is also analysed. The dielectric constant (ðœ�?_r) and temperature coefficient of resonant frequency (𝜏_f) are tailored without appreciable change in the quality factor. The measured values of ðœ�?_r and 𝜏_f are compared with the corresponding predicted values. These mixtures can be made useful in optical and microwave communication.

【 授权许可】

Unknown