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Microwave Dielectric Properties of Ultralow‐Temperature Cofirable Ba 3 V 4 O 13 Ceramics
Author(s) -
Kalathil Suresh E.,
Neelakantan Unnimaya A.,
Ratheesh Raveendran
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12802
Subject(s) - ceramic , materials science , microstructure , raman spectroscopy , mineralogy , monoclinic crystal system , analytical chemistry (journal) , crystallography , crystal structure , composite material , chemistry , physics , chromatography , optics
Ultralow‐temperature sinterable Ba 3 V 4 O 13 ceramics have been prepared through solid‐state ceramic route. Structural properties of the ceramic material are studied using powder X‐ray diffraction. Ba 3 V 4 O 13 ceramic has monoclinic structure and the existence of [V 4 O 13 ] 6− polyhedra is confirmed through Laser Raman studies. The sample sintered at 600°C for 1 h shows dense microstructure with microwave dielectric properties of ε r = 9.6, Q × f = 56 100 GHz, and τ f = −42 ppm/°C. The ceramics under study show good chemical compatibility with aluminum during cofiring.