Microwave dielectric properties of low temperature sintering Ca5Mn4(VO4)6 ceramics
Low temperature sinterable Ca 5 Mn 4 (VO 4 ) 6 ceramics were fabricated by the conventional solid-state reaction route and their microwave dielectric properties were investigated for the first time. The formation of Ca 5 Mn 4 (VO 4 ) 6 main phase was confirmed by XRD diffraction pattern. The correla...
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| Veröffentlicht in: | Journal of materials science. Materials in electronics 2016-07, Vol.27 (7), p.7292-7296 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Low temperature sinterable Ca
5
Mn
4
(VO
4
)
6
ceramics were fabricated by the conventional solid-state reaction route and their microwave dielectric properties were investigated for the first time. The formation of Ca
5
Mn
4
(VO
4
)
6
main phase was confirmed by XRD diffraction pattern. The correlations between sintering temperature, packing fraction, and microwave dielectric properties in Ca
5
Mn
4
(VO
4
)
6
ceramics were also studied. The Ca
5
Mn
4
(VO
4
)
6
ceramics sintered at 875 °C for 5 h possessed good microwave dielectric properties: ε
r
= 11.2, Q × f = 33, 800 GHz (at 10.5 GHz) and τ
f
= −70 ppm/°C. The material was found to react seriously with Ag when sintered at 875 °C, forming (AgCa
2
)Mn
2
(VO
4
)
3
phase. |
|---|---|
| ISSN: | 0957-4522 1573-482X |
| DOI: | 10.1007/s10854-016-4697-9 |