Abstract
The effects of firing temperature and test frequency on dielectric properties such as dielectric constant, dielectric loss of three conductor-dielectric (combination) samples, namely nickel-cordierite, silver-cordierite and titanium cordierite samples have been studied after firing.The results showed that the value of dielectric constant and dielectric loss decreased with increasing test frequencies and increasing firing temperature such as 700°C at 1 MHz. A dielectric constant as low as 2.2 was obtained for the nickel-cordierite samples. In addition, the samples were also analyzed for phase purity and phase transformation with an X-ray diffractometer (XRD). Though XRD can detect presence of a phase only beyond 1%, it was used to determine the extent of diffusion of conductor ions across the interface. There could have been a small diffusion of the conductor ions, namely nickel, silver and titanium into the cordierite during firing, but it was not detectable, so presumably the diffusion had produced less than 1% of the total amount of phases in the fired samples.
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References
Mei Sen, Yang Juan and F. Jose M F, Materials Letters 47 (2001) 205.
Lu Guo-Quan and C. J. Noel, J. Mater. Res. 15 (2000) 2857.
R. W. Dupon, R. L. Mcconville, D. J. Musolf, A. C. Tanous and M. S. Thompson, J. Amer. Ceram. Soc. 73 (1990) 335.
M. A. Einarsrud, S. Pedersen, E. Larsen and T. Grande, J. Euro Ceram. Soc. 19 (1999) 389.
U. Kogelschatz, B. Eliason and W. Egli, J. Phys. IV C4 (1997) C4.
Young-Guon Kim, Young Sam Kim, Dai-Geun Joh, Jae-Jun Ko, Dae Il Kim, Eun Ha Choi, Yoon Ho Seo and Guangup Cho, Jpn. J. Appl. Phys. Part 2 Letters 37 (1998) L1548.
L. L. Hench and J. L. West, “Principle of Electronic Ceramics” (John Wiley and Sons, New York, 1990) p. 123.
T. Ota, J. Takahashi and I. Yamai, Key Engineering Materials 66/67 (1992) 185.
Minoru Tomozawa, in “Dielectric Characteristic of Glass, Treatise on Materials Science and Technology, Glass I: Interaction with Electromagnetic Radiation,” edited by M. Tomozawa and R. H. Doremus (Academic Press, 1997) p. 282.
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Sarkar, G., Kulkarni, K. & Lam, H.M. A study of the factors affecting dielectric properties of sol-gel derived cordierite to be used in a plasma display panel. Journal of Materials Science 38, 1803–1807 (2003). https://doi.org/10.1023/A:1023248331294
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DOI: https://doi.org/10.1023/A:1023248331294