Hostname: page-component-77c89778f8-sh8wx Total loading time: 0 Render date: 2024-07-19T04:01:53.998Z Has data issue: false hasContentIssue false
  • English
  • Français

Microwave characteristics of BaPr2Ti4O12 and BaPr2Ti5O14 ceramics

Published online by Cambridge University Press:  03 March 2011

Koichi Fukuda ,
Ryozo Kitoh  and
Ikuo Awai
Koichi Fukuda
Affiliation:
Inorganic Materials Research Laboratory, Ube Industries, Ltd., 1978-5 Kogushi, Ube, Yamaguchi 755, Japan
Ryozo Kitoh
Affiliation:
Inorganic Materials Research Laboratory, Ube Industries, Ltd., 1978-5 Kogushi, Ube, Yamaguchi 755, Japan
Ikuo Awai
Affiliation:
Department of Electrical and Electronic Engineering, Yamaguchi University, Tokiwadai, Ube, Yamaguchi 755, Japan
Get access

Abstract

Microwave dielectric properties and microstructures of BaPr2Ti4O12 and BaPr2Ti5O14 ceramics which have extremely similar crystal structures, were investigated, including those of the solid solution represented by the formula of Ba6−xPr8+2x/3Ti18O54 ceramics. It is suggested that BaPr2Ti5O14 ceramics are composed of mixed phases, approximately 85.0 vol. % Ba4.05Pr9.3Ti18O54 (x = 1.95), 8.1 vol. % TiO2, and 6.9 vol. % BaTi4O9. The microwave dielectric properties of the Ba6−xPr8+2x/3Ti18O54 system are strongly dependent on the x value, which is interesting for studying the relationship between microstructures and dielectric properties. Far infrared reflection spectra were also measured to study the mixed phases formed in these ceramics in more detail.

Type
Articles
Information
Journal of Materials Research , Volume 10 , Issue 2 , February 1995 , pp. 312 - 319
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Kolar, D., Stadler, Z., Gaberscek, S., and Suvorov, D., Ber. Dt. Keram. Ges. 55, 346–348 (1978).Google Scholar
2Kawashima, S., Nshida, M., Ueda, I., and Ouchi, H., 87th Annual Meeting, Electronics Division Paper No. 15-E-85 (American Ceramic Society, Cincinnati, OHMay 6, 1985).Google Scholar
3Wakino, K., Minai, M., and Tamura, H., J. Am. Ceram. Soc. 67, 278–281 (1984).CrossRefGoogle Scholar
4Kolar, D., Gaberscek, S., Volavsek, B., Parker, H. S., and Roth, R. S., J. Solid State Chem. 38, 158–164 (1981).CrossRefGoogle Scholar
5Razgon, E. S., Gens, A. M., Varfolomeev, M. B., Korovin, S. S., and Kostomarov, V. S., Russ. J. Inorg. Chem. 25, 1274–1275 (1980).Google Scholar
6Gens, A. M., Varfolomeev, M. B., Kostomarov, V. S., and Korovin, S. S., Russ. J. Inorg. Chem. 26, 482–484 (1981).Google Scholar
7Matveeva, R. G., Varfolomeev, M. B., and H'yushchenko, L. S., Russ. J. Inorg. Chem. 29, 17–19 (1984).Google Scholar
8Varfolomeev, M. B., Mironov, A. S., Kostomarov, V. S., Golubtsova, L. A., and Zolotoba, T. A., Russ. J. Inorg. Chem. 33, 607–608 (1988).Google Scholar
9Ohsato, H., Nishigaki, S., and Okuda, T., Jpn. J. Appl. Phys. 31, 3136–3138 (1992).CrossRefGoogle Scholar
10Jaakola, T., Uusimaki, A., Rautioaho, B., and Leppavuori, S., J. Am. Ceram. Soc. 69, C-234–235 (1986).CrossRefGoogle Scholar
11Nishigaki, S., Kato, H., Yano, S., and Kamimura, R., Am. Ceram. Soc. Bull. 66, 1405–1410 (1987).Google Scholar
12Takahashi, J., Ikegami, T., and Kageyama, K., J. Am. Ceram. Soc. 74, 1873–1879 (1991).CrossRefGoogle Scholar
13Ichinose, N. and Machida, T., Proc. 72th Powder and Powder Metallurgy Meeting, Osaka, Japan (1993), Paper No. 3–41.Google Scholar
14Paladino, A. E., J. Am. Ceram. Soc. 54, 168–169 (1971).CrossRefGoogle Scholar
15Fukuda, K., Kitoh, R., and Awai, I., Jpn. J. Appl. Phys. 32, 4584–4588 (1993).CrossRefGoogle Scholar
16Fukuda, K., Kitoh, R., and Awai, I., J. Am. Ceram. Soc. 77, 149–154 (1994).CrossRefGoogle Scholar
17Ohsato, H., Ohhashi, T., Nishigaki, S., Okuda, T., Sumiya, K., and Suzuki, S., Jpn. Appl. Phys. 32, 4323–4326 (1993).CrossRefGoogle Scholar
18Fukuda, K., Fujii, I., Kitoh, R., and Awai, I., Jpn. J. Appl. Phys. 32, 1712–1715 (1993).CrossRefGoogle Scholar
19Servoin, J. L., Gervais, F., Quittet, A. M., and Luspin, Y., Phys. Rev. B 21, 2038–2041 (1980).CrossRefGoogle Scholar
20Gervais, F. and Piriou, B., Phys. Rev. B 10, 1642–1654 (1974).CrossRefGoogle Scholar