Effect of Grain Size on the Microwave Dielectric Characteristics of High-Energy Ball-Milled Zinc Magnesium Titanate Ceramics
Using solid‐state reaction route and high‐energy ball milling technique Zn1−xMgxTiO3 (x = 0–0.5) compositions were synthesized. These ball milled samples were sintered at 1100°C for 2 h and microwave dielectric properties such as dielectric constant (ε’), quality factor (Q), and temperature coeffici...
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Veröffentlicht in: | Journal of the American Ceramic Society 2012-06, Vol.95 (6), p.1973-1979 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Using solid‐state reaction route and high‐energy ball milling technique Zn1−xMgxTiO3 (x = 0–0.5) compositions were synthesized. These ball milled samples were sintered at 1100°C for 2 h and microwave dielectric properties such as dielectric constant (ε’), quality factor (Q), and temperature coefficient of resonant frequency (τf) were studied. Significant improvement in quality factor of ~ 65% was observed for x = 0.3. To understand the effect of sintering duration on the microwave dielectric properties, single phase Zn0.7Mg0.3TiO3 samples were sintered at 1100°C for different durations from 2 to 20 h. The grain size increases with sintering duration and it influences to enhance the microwave dielectric properties and as a result, the quality factor further improved by three times. The dielectric constant and temperature coefficient of resonant frequency showed a slight improvement of ~ 10%–15% with sintering duration. |
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ISSN: | 0002-7820 1551-2916 |
DOI: | 10.1111/j.1551-2916.2012.05128.x |