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Sol–Gel Processing and Characterizations of a Ba 0.75 Sr 0.25 Ti 0.95 Zr 0.05 O 3 Ceramic
Author(s) -
Chen ChingFong,
Reagor David W.,
Russell Steven J.,
Marksteiner Quinn R.,
Earley Lawrence M.,
Dalmas Dale A.,
Volz Heather M.,
Guidry Dennis R.,
Papin Pallas A.,
Yang Pin
Publication year - 2011
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/j.1551-2916.2011.04646.x
Subject(s) - materials science , calcination , differential thermal analysis , ceramic , microstructure , sol gel , scanning electron microscope , thermogravimetric analysis , transmission electron microscopy , analytical chemistry (journal) , dielectric , phase (matter) , chemical engineering , mineralogy , composite material , diffraction , nanotechnology , chemistry , optics , chromatography , physics , engineering , organic chemistry , catalysis , biochemistry , optoelectronics
A Ba 0.75 Sr 0.25 Ti 0.95 Zr 0.05 O 3 ceramic was developed for use in nonlinear transmission line (NLTL) applications. The sol–gel process was used to synthesize Ba 0.75 Sr 0.25 Ti 0.95 Zr 0.05 O 3 nanoparticles to achieve a uniform composition and a high surface area. Simultaneous thermal gravimetric analysis and differential thermal analysis ( TGA/DTA ) was used to identify the decomposition sequence as a function of temperature for the as‐synthesized powders. The phase transformation was confirmed by X‐ray diffraction ( XRD ). The calcined nanoparticles were hot‐pressed at 1300°C to achieve a high density. Microstructures were characterized using scanning electron microscopy ( SEM ). Several dielectric properties were measured and are reported.