Microwave dielectric properties of Mg0.95Co0.05TiO3᾿Ca0.8Sr0.2)0.6
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- 作者：Asad Ullah ; Abdul Naeem ; Yaseen Iqbal…
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：27
- 期：4
- 页码：3506-3513
- 全文大小：1,604 KB
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Abdul Naeem (1)
Yaseen Iqbal (3)
Tahira Mahmood (1)
Asad Mahmood (1)
1. National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
2. Materials Science Centre, School of Materials, University of Manchester, Grosvernor Street, Manchester, M1 7HS, UK
3. Material Research Centre, Institute of Physics and Electronics, University of Peshawar, Peshawar, 25120, Pakistan - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Optical and Electronic Materials
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1573-482X
文摘
The composite (1 − y)Mg0.95Co0.05TiO3–y(Ca0.8Sr0.2)0.6La0.267TiO3; (1 − y)MCoT–yCSLT microwave dielectric ceramics were synthesized by a polymeric precursor method. Phase formation and particle morphology of the ceramics were investigated by TGA/DSC, XRD and FESEM. Calination of (1 − y)MCoT–yCSLT polymeric precursor at 700 °C yielded ceramic powder with nano-sized particles. Rietveld refinement of sintered ceramics revealed that the composite (1 − y)MCoT–yCSLT composed of two phases. The ceramics with the composition (0.8)MCoT–(0.2)CSLT sintered at 1200 °C were observed to bear a good combination of microwave dielectric properties; dielectric constant (ε r ) = 26.13, quality factor (Q × f) = 54,820 GHz and temperature coefficient of resonant frequency (τ f ) = −3.9 ppm/°C, and are proposed as a suitable candidate for microwave applications.