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Influence of chemistry and processing on the electrical properties of Ba{sub 6-3x}Ln{sub 8+2x}Ti{sub 18}O{sub 54} solid solutions

Conference ·
OSTI ID:86569
 [1];  [2]
  1. Trans-Tech, Inc., Adamstown, MD (United States)
  2. Univ. of Pennsylvania, Philadelphia, PA (United States)
Contrary to most literature, ceramics used in many wireless communication circuits belong to a solid solution series, Ba{sub 6-3x}Ln{sub 8+2x}Ti{sub 18}O{sub 54}, where x depends on the lanthanide (Ln). The condition where temperature coefficient of resonant frequency (Tf) is near zero ppm/{degrees}C is explored from structural and polarizability considerations using Sr{sup 2+}, Pb{sup 2+}, Bi{sup 3+}, and Ln{sup 3+} substitutions. Processing produces preferred orientations in ceramics that are used to estimate very large intrinsic electrical anisotropy.
OSTI ID:
86569
Report Number(s):
CONF-941199--
Country of Publication:
United States
Language:
English

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