- Tytuł:
- Electrical Conductivity of Boron Oxide-Doped Yttria-Stabilized Cubic Zirconia (8YSZ)
- Autorzy:
-
Aktas, B.
Tekeli, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1401428.pdf
- Data publikacji:
- 2015-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
81.05.Je
81.20.Ev
82.47.Ed - Opis:
- The effect of B₂O₃ addition on the electrical conductivity of 8 mol% yttria-stabilized cubic zirconia (8YSZ) was investigated by analyzing the impedance spectra of 0-10 wt.% B₂O₃-doped 8YSZ powders prepared via a colloidal process. The doped powders were then pelletized under a pressure of 200 MPa, and then sintered at 1400°C for 10 h. Measurements of the electrical conductivity of the sintered specimens within a frequency range of 100 mHz-13 MHz, and temperature range of 300-800°C, revealed an increase in conductivity with increasing temperature. Furthermore, the grain interior, grain boundary and total conductivity of 8YSZ were found to be enhanced by the addition of 1 wt.% B₂O₃. This is attributed to the lattice distortion created by the addition of $B^{3+}$ cations to the 8YSZ lattice, which leads to an increase in the concentration of oxygen vacancies, thus ultimately resulting in an enhanced electrical conductivity.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 4; 1380-1383
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł