Abstract
The influences of BaCu(B2O5) (BCB) addition on sintering, microstructure and microwave dielectric properties of Li2MgTi3O8 ceramics were investigated using X-ray diffractometry, scanning electron microscopy and microwave dielectric measurements. The experimental results show that a small amount of BaCu(B2O5) addition can effectively reduce the sintering temperature to 900 °C, and induce only a limited degradation of the microwave dielectric properties. Typically, the best microwave dielectric properties of ɛ r=24.5, Q×f =24 622 GHz, τ f=4.2×10−6 °C−1 are obtained for 1.0% BCB-doped Li2MgTi3O8 ceramics sintered at 900 °C for 3 h. The BCB-doped Li2MgTi3O8 ceramics can be compatible with Ag electrode, which may be a strong candidate for low temperature co-fired ceramics applications.
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Foundation item: Project(2010GXNSFA013029) supported by the Natural Science Foundation of Guangxi Province, China; Project(101059529) supported by National Undergraduate Innovation Program of the Ministry of Education of China
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Bao, Y., Chen, Gh., Hou, Mz. et al. Low-temperature sintering and microwave dielectric properties of Li2MgTi3O8 ceramics doped with BaCu(B2O5). J. Cent. South Univ. Technol. 19, 1202–1205 (2012). https://doi.org/10.1007/s11771-012-1129-8
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DOI: https://doi.org/10.1007/s11771-012-1129-8