التفاصيل البيبلوغرافية
| العنوان: |
Influence of carbon nanotubes on thermal and electrical conductivity of zirconia-based composite. |
| المؤلفون: |
Wiśniewska, Maria1,2 (AUTHOR), Laptev, Alexander M.1 (AUTHOR), Marczewski, Mateusz1 (AUTHOR), Leshchynsky, Volf1 (AUTHOR), Lota, Grzegorz3,4 (AUTHOR), Acznik, Ilona3 (AUTHOR), Celotti, Luca5 (AUTHOR), Sullivan, Alex5 (AUTHOR), Szybowicz, Mirosław2 (AUTHOR), Garbiec, Dariusz1 (AUTHOR) dariusz.garbiec@pit.lukasiewicz.gov.pl |
| المصدر: |
Ceramics International. May2023, Vol. 49 Issue 10, p15442-15450. 9p. |
| مصطلحات موضوعية: |
*THERMAL conductivity, *ELECTRIC conductivity, *CERAMIC-matrix composites, *IMPEDANCE spectroscopy, *ZIRCONIUM oxide, *CARBON nanotubes |
| مستخلص: |
Carbon nanotubes (CNTs) are widely used in ceramic-matrix composites (CMC) as a filler. An individual carbon nanotube exhibits extremely high thermal conductivity, however, the influence of CNTs on the thermal conductivity of CMCs is moderate. In contrast, even a small quantity of CNTs significantly increases the electrical conductivity of CMCs. The present paper studies this contradictory influence for ZrO 2 -CNTs composites with 3, 5, 10 and 20 vol% multi-wall carbon nanotubes (MWCNTs). Their thermal and electrical conductivity was studied by the laser flash method and electrochemical impedance spectroscopy. The analysis reveals that the moderate influence of MWCNTs on the thermal conductivity of composites originates from the similar thermal conductivity of MWCNTs in a bundle and zirconia. On the other hand, the substantial difference in the electrical conductivity of MWCNTs and zirconia leads to an exponential increase in the electrical conductivity of the ZrO 2 -CNTs composite even with small additions of nanotubes. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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