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- W2040201262 abstract "Microwave (MW) dielectric ceramics in (1 - x)( Li 1/2 Nd 1/2 ) TiO 3 –x CaTiO 3 (0.2 ≤ x ≤ 0.8) composition were prepared through the conventional solid-state reaction. X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) combined with energy dispersive X-ray analysis (EDX) indicated that the matrix phase was a continuous solid solution with orthorhombic perovskite structure. A minor amount of secondary phase was detected only in the composition of x = 0.7 and 0.8. The (1 - x)( Li 1/2 Nd 1/2 ) TiO 3 –x CaTiO 3 ceramics showed a very high permittivity of 118–153 and reasonable Q × f 0 values of 2360–5930 GHz as x increased from 0.2 to 0.8. The temperature coefficient of resonant frequency (τ f ) of the samples increased with increasing x value and was approximately linearly proportional to ε r . Bi 4 B 2 O 9 addition effectively tailored the τ f of (1 - x)( Li 1/2 Nd 1/2 ) TiO 3 –x CaTiO 3 ceramics to near zero at low temperature, and induced no degradation of Q × f 0 value. The x = 0.3 composition with 20 wt .% Bi 4 B 2 O 9 addition sintered at 1050°C exhibited dielectric properties of ε r = 112.4, Q × f 0 = 2414 GHz and τ f = 8.9 ppm/°C." @default.
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- W2040201262 date "2015-04-23" @default.
- W2040201262 modified "2023-09-23" @default.
- W2040201262 title "High-permittivity microwave dielectric ceramics based on (1 - x)(<font>Li</font><sub>1/2</sub><font>Nd</font><sub>1/2</sub>)<font>TiO</font><sub>3</sub>–x<font>CaTiO</font><sub>3</sub>" @default.
- W2040201262 doi "https://doi.org/10.1142/s0217979215400263" @default.
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