High-temperature electrical resistivity and heat capacity studies on nano-crystalline geikielite |
| |
| Affiliation: | 1. School of Earth and Space Exploration, Arizona State University, PO Box 876004, Tempe, AZ 85287-6004, USA;2. Department of Physics and Electronics, University of Puerto Rico at Humacao, Call Box 860, Humacao, PR 00792, USA;3. Center for Meteorite Studies, Arizona State University, PO Box 876004, Tempe, AZ 85287-6004, USA;4. School for Engineering of Matter, Transport and Energy, Arizona State University, PO Box 876106, Tempe, AZ 85287, USA;5. Physics Department, State University of New York, PO Box 2000, Cortland, NY 13045, USA |
| |
| Abstract: | We report here for the first time the temperature dependence of the electrical resistivity and heat capacity of nano-crystalline MgTiO3 geikielite of up to 1000 K. The temperature dependence of heat capacity of nano-crystalline geikielite expressed as Cp = 46.44(5) + 0.0502(2)T ? 4.56 × 106T2 + 1.423 × 103T? 0.5 ? 8.672 × 10? 6T? 2, where Cp = is specific heat expressed in J/mol. K and T is the temperature in K. Both the electrical resistivity and heat capacity behaviour show that the geikielite (both the natural and synthetic nano-crystalline samples) are stable and remains electrically insulating up to 1000 K. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
