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Tungsten Bronze‐Structured Temperature‐Stable Dielectrics
Author(s) -
Stennett M. C.,
Reaney I. M.,
Miles G. C.,
West A. R.,
Kirk C. A.
Publication year - 2007
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.1551-2916.2007.01487.x
Subject(s) - tungsten , dielectric , materials science , bronze , capacitor , ceramic capacitor , capacitance , ceramic , composite material , metallurgy , optoelectronics , electrical engineering , electrode , voltage , chemistry , engineering
Dielectrics with exceptional temperature stability suitable for multilayer capacitor applications have been fabricated based on compositions in the tungsten bronze‐structured BaO–M 2 O 3 –TiO 2 –Nb 2 O 5 (BMTN, M=La 3+ , Nd 3+ , Sm 3+ ) system. Heterogeneous mixtures of BLTN, BNTN, and BSTN end members groups have been used to manufacture a ceramic capacitor stable to −15% of the room temperature capacitance (ɛ r >300) between −50° and + 200°C, with a room temperature dielectric loss of <0.02 at 1 MHz.