Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2
The microstructure and nonohmic properties of SnO2-Ta2O5-ZnO varistor system doped with different amounts of ZrO2 (0–2.0 mol%) were investigated. The proposed samples were sintered at 1400°C for 2 h with conventional ceramic processing method. By X-ray diffraction, SnO2 cassiterite phase was found i...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/754890 |
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| _version_ | 1832548893873668096 |
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| author | Xiuli Fu Feng Jiang Ruichao Gao Zhijian Peng |
| author_facet | Xiuli Fu Feng Jiang Ruichao Gao Zhijian Peng |
| author_sort | Xiuli Fu |
| collection | DOAJ |
| description | The microstructure and nonohmic properties of SnO2-Ta2O5-ZnO varistor system doped with different amounts of ZrO2 (0–2.0 mol%) were investigated. The proposed samples were sintered at 1400°C for 2 h with conventional ceramic processing method. By X-ray diffraction, SnO2 cassiterite phase was found in all the samples, and no extra phases were identified in the detection limit. The doping of ZrO2 would degrade the densification of the varistor ceramics but inhibit the growth of SnO2 grains. In the designed range, varistors with 1.0 mol% ZrO2 presented the maximum nonlinear exponent of 15.9 and lowest leakage current of 110 μA/cm2, but the varistor voltage increased monotonously with the doping amount of ZrO2. |
| format | Article |
| id | doaj-art-790d1004aa644c2b92d3e3f2100d76b2 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-790d1004aa644c2b92d3e3f2100d76b22025-02-03T06:12:45ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/754890754890Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2Xiuli Fu0Feng Jiang1Ruichao Gao2Zhijian Peng3School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaSchool of Engineering and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Science, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaSchool of Engineering and Technology, China University of Geosciences, Beijing 100083, ChinaThe microstructure and nonohmic properties of SnO2-Ta2O5-ZnO varistor system doped with different amounts of ZrO2 (0–2.0 mol%) were investigated. The proposed samples were sintered at 1400°C for 2 h with conventional ceramic processing method. By X-ray diffraction, SnO2 cassiterite phase was found in all the samples, and no extra phases were identified in the detection limit. The doping of ZrO2 would degrade the densification of the varistor ceramics but inhibit the growth of SnO2 grains. In the designed range, varistors with 1.0 mol% ZrO2 presented the maximum nonlinear exponent of 15.9 and lowest leakage current of 110 μA/cm2, but the varistor voltage increased monotonously with the doping amount of ZrO2.http://dx.doi.org/10.1155/2014/754890 |
| spellingShingle | Xiuli Fu Feng Jiang Ruichao Gao Zhijian Peng Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 The Scientific World Journal |
| title | Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 |
| title_full | Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 |
| title_fullStr | Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 |
| title_full_unstemmed | Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 |
| title_short | Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 |
| title_sort | microstructure and nonohmic properties of sno2 ta2o5 zno system doped with zro2 |
| url | http://dx.doi.org/10.1155/2014/754890 |
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