Improved Microwave Dielectric Properties of   La(Mg 0.5 Sn 0.5 )O 3    Ceramics with   Yb 3+    Doping | Zendy

Chen YihChien | Zendy

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Improved Microwave Dielectric Properties of La(Mg 0.5 Sn 0.5 )O 3 Ceramics with Yb 3+ Doping

Author(s) -

Chen YihChien

Publication year - 2012

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/j.1744-7402.2011.02683.x

Subject(s) - materials science , sintering , ceramic , dielectric , temperature coefficient , doping , analytical chemistry (journal) , diffraction , phase (matter) , microwave , composite material , optics , optoelectronics , telecommunications , chemistry , computer science , physics , organic chemistry , chromatography

The La 1− x Yb x (Mg 0.5 Sn 0.5 )O 3 ceramics were prepared by the conventional solid‐state method with various sintering temperatures. The X ‐ray diffraction patterns of the La 0.97 Yb 0.03 (Mg 0.5 Sn 0.5 )O 3 ceramics revealed no significant variation of phase with sintering temperatures. An apparent density of 6.65 g/cm 3 , a dielectric constant ( ε r ) of 20.2, a quality factor ( Q × f ) of 56,800 GHz, and a temperature coefficient of resonant frequency ( τ f ) of −76.9 ppm/°C were obtained for La 0.97 Yb 0.03 (Mg 0.5 Sn 0.5 )O 3 ceramics that were sintered at 1550°C for 4 h.

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