Effects of Ball Milling Time on the Microwave Properties of Mg4Nb2O9 Ceramics by the Solid-State Process

Hai Tao Wu; Yi Shan Jiang; Ying Zi Wang; Ya Ming Chen; Yun Long Yue

doi:10.4028/www.scientific.net/AMR.499.165

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 499Effects of Ball Milling Time on the Microwave...

Effects of Ball Milling Time on the Microwave Properties of Mg₄Nb₂O₉ Ceramics by the Solid-State Process

Abstract:

Corundum-type magnesium niobate (Mg₄Nb₂O₉) ceramics were synthesized by the conventional solid-state method, the effect of ball milling time on microwave properties was studied in detail. Xrd results showed that the major phase was identified as the ordered corundum structure Mg₄Nb₂O₉ with minor secondary phase of orthorhombic-symmetry Mg₅Nb₄O₁₅. The morphology was obviously affected by ball milling times at sintering process, and then the relationships between the morphology and microwave properties were discussed. The results indicated that ball milling times at sintering process could obviously affect the microstructure and microwave properties of Mg₄Nb₂O₉ ceramics. When ball milling time was 10h, the Mg₄Nb₂O₉ ceramics were prepared with the conditions of calcination at 1100°C for 2h and sintered at 1350°C for 6h, and the optimal microwave properties were ε_r~13, Q·ƒ~120,000GHz and ƒ~-60ppm/°C.

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Periodical:

Advanced Materials Research (Volume 499)

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165-169

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https://doi.org/10.4028/www.scientific.net/AMR.499.165

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April 2012

Authors:

Hai Tao Wu, Yi Shan Jiang, Ying Zi Wang, Ya Ming Chen, Yun Long Yue

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Ball Milling Time, Magnesium Niobate, Microwave Properties, Solid-State Process

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References

[1] N. M. Alford, S. J. Penn:J. Appl. Phys. Vol. 80 (1992), p.5895

Google Scholar

[2] A. Wachtel:J. Electrochem. Soc. Vol. 111 (1964) , p.534.

Google Scholar

[3] Y.C. You, N. Park, K.H. Jung, H.L. Park, K.C. Kim, S.I. Mho, T.W. Kim:J. Mater. Sci. Lett. Vol. 13 (1994) , p.1682.

Google Scholar

[4] P.A. Joy, K. Sreedhar: J. Am. Ceram. Soc. Vol. 80 (1997), p.770.

Google Scholar

[5] C.H. Lu, H.S. Yang: Mater. Sci. Eng. B Vol.84 (2001), p.159.

Google Scholar

[6] S.L. Swartz, T.R. Shrout:Mater. Res. Bull. Vol.17 (1982) , p.1245.

Google Scholar

[7] S. Ananta, N.W. Thomas: J. Eur. Ceram. Soc. Vol.19 (1999) , p.155.

Google Scholar

[8] G. Haertling: J. Am. Ceram. Soc. Vol.82 (1999) , p.797.

Google Scholar

[9] A.J. Moulson, J.M. Herbert: Electroceramics(Wiley, Chichester,2003.)

Google Scholar

[10] K. Uchino:Piezoelectrics and Ultrasonic Applications(Kluwer, 1998.)

Google Scholar

[11] B.W. Hakki, P.D. Coleman, IEEE Trans. Vol.8 (1960) , p.116.

Google Scholar

[12] W.E. Courtney, IEEE Trans. Vol.18(1970) , p.476.

Google Scholar

[13] Y. K. Lakshmi, P.V. Reddy, J. Alloys Compd. Vol.470(2009) , p.67.

Google Scholar

[14] I.N. Jawahar, P.Mohanan, M.T. Sebastian, Mater. Lett. Vol.57 (2003) , p.4043.

Google Scholar

[15] S. Kamba, J. Petzelt, E. Buixaderas, D. Haubrich, P. Vaněk, P. Kužel, I. N. Jawahar, M. T. Sebastian, P. Mohanan, J. Appl. Phys. Vol.89(2001), p.3900.

DOI: 10.1063/1.1351873

Google Scholar

[16] Y.P. Long, Y.X. Li, Y.L. Wang, W.J. Wu, J. Alloy Compd. Vol.475 (2009) , pp.546-550.

Google Scholar