Effect of Nb2O5 Addition to the Electrical Properties of Fe2TiO5 Ceramics-Based NTC Thermistor
| Autor: | R. E. Siregar, Wiendartun, Risdiana, Fitrilawati |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Pseudobrookite
Materials science business.industry Mechanical Engineering Thermistor Electrical engineering Pellets Activation energy engineering.material Condensed Matter Physics Grain size Electrical resistance and conductance Mechanics of Materials visual_art visual_art.visual_art_medium engineering General Materials Science Ceramic Composite material Single phase business |
| Zdroj: | Materials Science Forum. 827:262-265 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.827.262 |
| Popis: | The aims of this research is to identify the effect of Nb2O5addition on the electrical properties of Fe2TiO5ceramics-based NTC thermistor.The concentration of Fe2O3and TiO2was proportional to Fe2TiO5, whereas the concentration value of Nb2O5were 0, 0.5 and 1.0 mole %, respectively. Within two hours, the mixed powder was pressed at 4 ton/cm2to form pellets and sintered at 1300 °C in air. It can perceived from the XRD data that the sintered ceramics had single phase of Fe2TiO5, pseudobrookite. From SEM data, it is found that addition of Nb2O5decreases the grain size. The addition of Nb2O5increases thermistor constant, activation energy and electrical resistance of Fe2TiO5ceramics. The values of thermistor constant of Nb2O5added-Fe2TiO5ceramics were relatively large, indicated that the ceramics were aplicable as the NTC thermistor. |
| Databáze: | OpenAIRE |
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