Dielectric properties of low temperature cofired BaO-Nd₂O₃-TiO₂ ceramics

Authors: Wang, S.¹; Wu, S.H.²; Liu, J.F.²; Chen, Z.B.²

Source: Advances in Applied Ceramics, Volume 108, Number 7, October 2009 , pp. 396-399(4)

Publisher: Maney Publishing

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Abstract:

Glass ceramic materials were fabricated based on BaO-ZnO-B₂O₃ (BZB) glass with Ba_6-3x(Nd_1-yBi_y)_8+2xTi₁₈O₅₄ ceramics. It was investigated that the dielectric properties and the sintering behaviour of glass ceramics. Doped by BZB glass, the sintering temperature of Ba_6-3x(Nd_1-yBi_y)_8+2xTi₁₈O₅₄ ceramics was significantly lowered to 900°C in comparison to 1300°C for samples without glass. The low softening point BZB glass provided good wetting between BZB and Ba_6-3x(Nd_1-yBi_y)_8+2xTi₁₈O₅₄, and the reaction between glass and ceramics was increased. The dielectric constant of BZB-Ba_6-3x(Nd_1-yBi_y)_8+2xTi₁₈O₅₄ system was increased with increasing firing time. The composite sintered at 900°C for 2 h exhibited excellent dielectric properties were achieved, with dielectric constant of 75, the dielectric loss of 5 × 10^-5 and the temperature coefficient of ±30 ppm °C^-1.

Keywords: LTCC; BAO-ND2O3-TIO2; DIELECTRIC PROPERTIES

Document Type: Research article

DOI: 10.1179/174367609X414116

Affiliations: 1: Institute of Electronics and Information Engineering, Tianjin University, Tianjin 300072, China;, Email: homehv@yahoo.com.cn 2: Institute of Electronics and Information Engineering, Tianjin University, Tianjin 300072, China

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