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Effect of crystallization on microwave dielectric properties of stoichiometric cordierite glasses containing B2O3 and P2O5

Published online by Cambridge University Press:  31 January 2011

Jenn-Ming Wu  and
Hong-Lin Huang
Jenn-Ming Wu
Affiliation:
Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30043, Republic of China
Hong-Lin Huang
Affiliation:
Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30043, Republic of China
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Extract

The effect of crystallization on microwave dielectric properties of cordierite glasses containing B2O3 and P2O5 additions was investigated. Two glasses containing 5 wt% B2O3/5 wt% P2O5 and 7.5 wt% B2O3/7.5 wt% P2O5 were studied. Both glasses were sintered to nearly full density at temperatures as low as 860 °C. The frequency constant and quality factor of α cordierite are, respectively, about five times and two times larger than those of glassy phase and μ cordierite. The temperature coefficients of resonant frequency are estimated to be about −13, −55, and −15 ppm/°C for glassy phase, μ cordierite, and α cordierite, respectively. As a result of the microwave dielectric properties of the individual phase, cordierite glasses containing α cordierite possess the best microwave properties.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 1 , January 2000 , pp. 222 - 227
Copyright
Copyright © Materials Research Society 2000

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References

REFERENCES

1.Hirade, K., Electron. Ceram. 23, 64 (1992).Google Scholar
2.Okawa, T. and Utaki, H., Sumitomo Search 47, 117 (1991).Google Scholar
3.Okawa, T., Dai 10 kai Denshi Zairyo Touronkai, Yokosyu 25 (1990).Google Scholar
4.Katou, J., Denshi Zairyo 30, 112 (1991).Google Scholar
5.Takada, T., Wang, S.F., Yoshikawa, S., Jang, S.J., and Newnham, R.E., J. Am. Ceram. Soc. 77, 1909 (1994).CrossRefGoogle Scholar
6.Takada, T., Wang, S.F., Yoshikawa, S., Jang, S.J., and Newnham, R.E., J. Am. Ceram. Soc. 77, 2485 (1994).CrossRefGoogle Scholar
7.Wu, J. and Huang, H. (unpublished).Google Scholar
8.von Hippel, A.R., in Dielectric Materials and Applications, edited by von Hippel, A.R. (Technology Press of MIT, Cambridge, MA, and John Wiley & Sons, New York, 1954).Google Scholar
9.Navias, L. and Green, R.L., J. Am. Ceram. Soc. 29, 267 (1946).CrossRefGoogle Scholar
10.Schlömann, E., Phys. Rev. 135(2A), A413 (1961).CrossRefGoogle Scholar
11.Higuchi, Y., Michiura, N., Tatekawa, T., and Tamura, H., in Materials and Processes for Wireless Communications, edited by Negas, T. and Ling, H. (American Ceramic Society, Westerville, OH, 1995), p. 153.Google Scholar
12.Berezhnoi, A., in Glass-Ceramics and Photo-Sitalls, edited by Pincus, A.G. (Plenum Press, New York, 1970), pp. 326–339.Google Scholar
13.Pavlova, G. and Chistoserdov, V., in The Structure of Glass (Consultants Bureau, New York, 1964), Vol. 3, p. 200.Google Scholar
14.Knickerbocker, S., Kumar, A., and Herron, L., Am. Ceram. Soc. Bull. 72, 90 (1993).Google Scholar
15.Geiss, E.A., Guerci, C.F., Walker, G.F., and Wen, S.H., J. Am. Ceram. Soc. 68, C328, (1985).Google Scholar
16.Geiss, E.A., Fletcher, J.P., and Herron, L.W., J. Am. Ceram. Soc. 67, 549 (1984).CrossRefGoogle Scholar
17.Geiss, E.A. and Knickerbocker, S.H., J. Mater. Sci. Lett. 4, 835 (1985).CrossRefGoogle Scholar
18.Wu, J.M. and Hwang, S. (unpublished).Google Scholar
19.Kobayashi, Y. and Katoh, M., IEEE Trans. Microwave Theory and Technol. MTT–33, 586 (1985).CrossRefGoogle Scholar
20.Hakki, B.W. and Coleman, P.D., IRE Trans. Microwave Theory Technol. 8, 402 (1960).CrossRefGoogle Scholar