Low-temperature sintering and microwave dielectric properties of CaTi1-x(Fe0.5Nb0.5)x O3 ceramics with B2O3 addition

Kui Won Kang; Hyo Tae Kim; Michael Lanagan; Thomas Shrout

doi:10.1016/j.materresbull.2005.12.008

Low-temperature sintering and microwave dielectric properties of CaTi_1-x(Fe_0.5Nb_0.5)_x O₃ ceramics with B₂O₃ addition

Kui Won Kang, Hyo Tae Kim, Michael Lanagan, Thomas Shrout

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

CaTi_1-x(Fe_0.5Nb_0.5)_x O₃ (0 ≤ x ≤ 1) dielectrics were synthesized via the solid state reaction route and structure analysis was performed together with the dielectric characterization. The substitution of Ti⁴⁺ by Fe³⁺/Nb⁵⁺ and developed phase were studied by X-ray diffraction. The dielectric constant and temperature coefficient of resonant frequency decrease rapidly with an increase of x. The influence of 1-5 wt.% B₂O₃ as a sintering additive investigated at CaTi_0.5(Fe_0.5Nb_0.5)_0.5 O₃ solid solutions. The dielectric properties were found to strongly depend on the sintering conditions and contents of B₂O₃ additions. ε_r = 52.3, Q × f_o = 2930 GHz and T_f = 13 ppm/°C were obtained for CaTi_0.5(Fe_0.5Nb_0.5)_0.5 O₃ specimen 3 wt.% B₂O₃ sintered at 900 °C for 2 h.

Original language	English (US)
Pages (from-to)	1385-1391
Number of pages	7
Journal	Materials Research Bulletin
Volume	41
Issue number	7
DOIs	https://doi.org/10.1016/j.materresbull.2005.12.008
State	Published - Jul 13 2006

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Low-temperature sintering and microwave dielectric properties of CaTi1-x(Fe0.5Nb0.5)x O3 ceramics with B2O3 addition",

abstract = "CaTi1-x(Fe0.5Nb0.5)x O3 (0 ≤ x ≤ 1) dielectrics were synthesized via the solid state reaction route and structure analysis was performed together with the dielectric characterization. The substitution of Ti4+ by Fe3+/Nb5+ and developed phase were studied by X-ray diffraction. The dielectric constant and temperature coefficient of resonant frequency decrease rapidly with an increase of x. The influence of 1-5 wt.% B2O3 as a sintering additive investigated at CaTi0.5(Fe0.5Nb0.5)0.5 O3 solid solutions. The dielectric properties were found to strongly depend on the sintering conditions and contents of B2O3 additions. εr = 52.3, Q × fo = 2930 GHz and Tf = 13 ppm/°C were obtained for CaTi0.5(Fe0.5Nb0.5)0.5 O3 specimen 3 wt.% B2O3 sintered at 900 °C for 2 h.",

author = "Kang, {Kui Won} and Kim, {Hyo Tae} and Michael Lanagan and Thomas Shrout",

year = "2006",

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doi = "10.1016/j.materresbull.2005.12.008",

language = "English (US)",

volume = "41",

pages = "1385--1391",

journal = "Materials Research Bulletin",

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T1 - Low-temperature sintering and microwave dielectric properties of CaTi1-x(Fe0.5Nb0.5)x O3 ceramics with B2O3 addition

AU - Kang, Kui Won

AU - Kim, Hyo Tae

AU - Lanagan, Michael

AU - Shrout, Thomas

PY - 2006/7/13

Y1 - 2006/7/13

N2 - CaTi1-x(Fe0.5Nb0.5)x O3 (0 ≤ x ≤ 1) dielectrics were synthesized via the solid state reaction route and structure analysis was performed together with the dielectric characterization. The substitution of Ti4+ by Fe3+/Nb5+ and developed phase were studied by X-ray diffraction. The dielectric constant and temperature coefficient of resonant frequency decrease rapidly with an increase of x. The influence of 1-5 wt.% B2O3 as a sintering additive investigated at CaTi0.5(Fe0.5Nb0.5)0.5 O3 solid solutions. The dielectric properties were found to strongly depend on the sintering conditions and contents of B2O3 additions. εr = 52.3, Q × fo = 2930 GHz and Tf = 13 ppm/°C were obtained for CaTi0.5(Fe0.5Nb0.5)0.5 O3 specimen 3 wt.% B2O3 sintered at 900 °C for 2 h.

AB - CaTi1-x(Fe0.5Nb0.5)x O3 (0 ≤ x ≤ 1) dielectrics were synthesized via the solid state reaction route and structure analysis was performed together with the dielectric characterization. The substitution of Ti4+ by Fe3+/Nb5+ and developed phase were studied by X-ray diffraction. The dielectric constant and temperature coefficient of resonant frequency decrease rapidly with an increase of x. The influence of 1-5 wt.% B2O3 as a sintering additive investigated at CaTi0.5(Fe0.5Nb0.5)0.5 O3 solid solutions. The dielectric properties were found to strongly depend on the sintering conditions and contents of B2O3 additions. εr = 52.3, Q × fo = 2930 GHz and Tf = 13 ppm/°C were obtained for CaTi0.5(Fe0.5Nb0.5)0.5 O3 specimen 3 wt.% B2O3 sintered at 900 °C for 2 h.

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U2 - 10.1016/j.materresbull.2005.12.008

DO - 10.1016/j.materresbull.2005.12.008

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SN - 0025-5408

VL - 41

SP - 1385

EP - 1391

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 7

ER -

Low-temperature sintering and microwave dielectric properties of CaTi_1-x(Fe_0.5Nb_0.5)_x O₃ ceramics with B₂O₃ addition

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