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- Title
碳粉/二氧化硅对碳纤维增强复合材料温阻效应影响.
- Authors
刘荣桂; 平舒; 谢桂华; 刘聃; 席宜超
- Abstract
The thermo-resistive effect of CFRP sensor elements with mixed carbon powder and silica at room temperature to high temperature (100 ℃) was studied. The results show that the two CFRP sensor elements have positive temperature coefficient (PTC) effect when heating, and have good liner relationship between temperature difference (ΔT) and the common logarithm of resistance. Adding carbon powder and silica can improve the temperature sensitive characteristics of the sensor element. After the first temperature cycle, the CFRP sensor element generates a retention resistance which does not disappear with time. In the process of repeating the temperature, with respect to the CFRP sensor elements without any mixture, the CFRP sensor element added carbon powder and silica has higher PTC strength and better regularity and repeatability, and it shows negative temperature coefficient (NTC) effect when ΔT at 0-20 ℃, PTC effect at 20-80 ℃.
- Publication
Journal of Architecture & Civil Engineering, 2017, Vol 34, Issue 6, p36
- ISSN
1673-2049
- Publication type
Article