Processing and characterization of A-site deficient [(Ca, Sr) x (La, Nd) 2/3−2x/3 ]TiO 3 dielectric ceramics
作者： Muhammad Saleem , Yaseen Iqbal , Shan Qin , Xiang Wu , Shahid Ali
DOI: 10.1007/S10854-014-2302-7
关键词:
摘要: A-site deficient perovskite ceramics in the [(Ca, Sr) x (La, Nd)2/3−2x/3]TiO3 (x = 0.1–0.9) system were prepared by a mixed-oxide solid state sintering route. Synchrotron X-ray diffraction and Raman spectroscopy revealed tetragonal (I4/mcm) symmetry for compositions with x = 0.1–0.7 orthorhombic (Pbnm) x = 0.8 0.9 compositions. The grain size increased an increase x up to 0.7 then decreased upon further 0.8 0.9. optimum microwave dielectric properties (er ~ 48, Q × f = 3,664 GHz τ f ~ +61 GHz) recorded x = 0.1.
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