YBCO as a transition metal oxide ceramic material for energy storage
The ac conductivity was further studied for undoped YBCO and doped YBCO with 0.1 wt.% of nano-metal oxide of Cr2O3, Co3O4, and Mn3O4 samples. For all the studied samples, we found σac is typically specified to the hopping conduction and ac conductivity has a power law behavior in terms of frequency...
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2021
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oai:localhost:DHTL-107202021-04-15T08:45:33Z YBCO as a transition metal oxide ceramic material for energy storage Salama, A.H. Youssef, A.M. Rammah, Y.S. El-Khatib, M. High-temperature superconductor Dielectric properties Ac electrical conductivity Super dielectric materials The ac conductivity was further studied for undoped YBCO and doped YBCO with 0.1 wt.% of nano-metal oxide of Cr2O3, Co3O4, and Mn3O4 samples. For all the studied samples, we found σac is typically specified to the hopping conduction and ac conductivity has a power law behavior in terms of frequency (ω). In general, there are two frequency-dependent regions for all the studied ceramic samples; in the low-frequency region, σac is independent of frequency whereas in the high-frequency region, dispersion occurs. The change in microwave conductivity of the studied samples with frequency (1–5 MHz) is shown in Fig. 5. It is observed that for all samples, the conductivity increases with temperatures and depends on the doped metal oxide. The values of σac at 5 MHz varied from − 0.4 to 1.2 for undoped YBCO, from − 0.98 to − 0.75 for 0.1 wt.%Mn3O4-YBCO sample, from − 0.25 to 0.2 for 0.1 wt.% Co2O3-YBCO sample, and from − 0.4 to 0.6 for 0.1 Wt.% Cr3O4-YBCO sample. https://bnrc.springeropen.com/articles/10.1186/s42269-019-0134-6#article-info 2021-04-15T08:45:33Z 2021-04-15T08:45:33Z 2019 BB 2522-8307 http://tailieuso.tlu.edu.vn/handle/DHTL/10720 en Bulletin of the National Research Centre, Vol 43:89 (2019) |
| institution |
Trường Đại học Thủy Lợi |
| collection |
DSpace |
| language |
English |
| topic |
High-temperature superconductor Dielectric properties Ac electrical conductivity Super dielectric materials |
| spellingShingle |
High-temperature superconductor Dielectric properties Ac electrical conductivity Super dielectric materials Salama, A.H. YBCO as a transition metal oxide ceramic material for energy storage |
| description |
The ac conductivity was further studied for undoped YBCO and doped YBCO with 0.1 wt.% of nano-metal oxide of Cr2O3, Co3O4, and Mn3O4 samples. For all the studied samples, we found σac is typically specified to the hopping conduction and ac conductivity has a power law behavior in terms of frequency (ω). In general, there are two frequency-dependent regions for all the studied ceramic samples; in the low-frequency region, σac is independent of frequency whereas in the high-frequency region, dispersion occurs. The change in microwave conductivity of the studied samples with frequency (1–5 MHz) is shown in Fig. 5. It is observed that for all samples, the conductivity increases with temperatures and depends on the doped metal oxide. The values of σac at 5 MHz varied from − 0.4 to 1.2 for undoped YBCO, from − 0.98 to − 0.75 for 0.1 wt.%Mn3O4-YBCO sample, from − 0.25 to 0.2 for 0.1 wt.% Co2O3-YBCO sample, and from − 0.4 to 0.6 for 0.1 Wt.% Cr3O4-YBCO sample. |
| author2 |
Youssef, A.M. |
| author_facet |
Youssef, A.M. Salama, A.H. |
| format |
BB |
| author |
Salama, A.H. |
| author_sort |
Salama, A.H. |
| title |
YBCO as a transition metal oxide ceramic material for energy storage |
| title_short |
YBCO as a transition metal oxide ceramic material for energy storage |
| title_full |
YBCO as a transition metal oxide ceramic material for energy storage |
| title_fullStr |
YBCO as a transition metal oxide ceramic material for energy storage |
| title_full_unstemmed |
YBCO as a transition metal oxide ceramic material for energy storage |
| title_sort |
ybco as a transition metal oxide ceramic material for energy storage |
| publishDate |
2021 |
| url |
http://tailieuso.tlu.edu.vn/handle/DHTL/10720 |
| work_keys_str_mv |
AT salamaah ybcoasatransitionmetaloxideceramicmaterialforenergystorage |
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1787740524864602112 |