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Formation and Microwave Dielectric Properties of the Mg2V2O7 Ceramics
- Issue Date
- Jul-2009
- Publisher
- WILEY
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.92, no.7, pp 1621 - 1624
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY
- Volume
- 92
- Number
- 7
- Start Page
- 1621
- End Page
- 1624
- ISSN
- 0002-7820
1551-2916
- Abstract
- The formation process and microwave dielectric properties of the Mg2V2O7 ceramics were investigated. The MgV2O6 phase that was formed at around 450 degrees C interacted with remnant MgO above 590 degrees C to form a homogeneous monoclinic Mg2V2O7 phase. Finally, this monoclinic Mg2V2O7 phase was changed to a triclinic Mg2V2O7 phase for the specimen fired at 800 degrees C. Sintering at 950 degrees C for more than 5 h produced high-density triclinic Mg2V2O7 ceramics. In particular, the Mg2V2O7 ceramics sintered at 950 degrees C for 10 h exhibited the good microwave dielectric properties of epsilon(r)=10.5, Q x f=58 275 GHz, and tau(f)=-26.9 ppm/degrees C.
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