New modification of 5PbO · 2Nb2O5
✍ Scribed by Osamu Yamaguchi; Yasumichi Mukaida
- Book ID
- 104908988
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 152 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0261-8028
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📜 SIMILAR VOLUMES
The transformation of H-Nb 2 O 5 has been studied by using a ''toroid''-type high-pressure chamber at pressures of 5.0 and 8.0 GPa in the temperature region 800-1400°C. A mixture of B-Nb 2 O 5 and a new modification of niobium pentoxide (denoted Z-Nb 2 O 5 ) with seven-coordinated niobium was found
## Abstract PbO–Nb~2~O~5~–P~2~O~5~ glasses containing different concentrations of V~2~O~5~ ranging from 0 to 1.0 mol% were prepared. A number of studies, viz. differential thermal analysis, infrared, optical absorption, Raman and ESR spectra and dielectric properties (dielectric constant __ϵ__′, lo