Temperature Sensibility of Epoxy-Matrix Carbon Fiber Smart Layer

2012 ◽  
Vol 189 ◽  
pp. 48-51
Author(s):  
Hua Sheng Zheng ◽  
Jing Li ◽  
Si Rong Zhu ◽  
Zhuo Qiu Li
Keyword(s):  
Carbon Fiber ◽  
Epoxy Matrix ◽  
Temperature Scale ◽  
Matrix Composites ◽  
Fiber Mats ◽  
Ptc Effect ◽  
New Type ◽  
C 50 ◽  
Short Carbon ◽  
Ntc Effect

The paper deals with the temperature sensitivity of a new type strain sensor named carbon fiber smart layer (CFSL) made of epoxy-matrix composites with short carbon fiber mats. The experiment result indicated that the epoxy matrix CFSL is sensitive to temperature variation. It exhibits NTC effect in -5°C~25°C and exhibits PTC effect in 25°C~50°C. The NTC effect is relatively gentle and the PTC effect is relatively dramatic. The mechanism of both NTC effect and PTC effect is discussed based on the temperature sensitivities of carbon fiber itself and the fiber to fiber interface. Further experiment demonstrated its temperature sensing properties in the temperature scale in which the NTC effect or PTC effect exhibits individually.

Effect of micro-Al2O3 contents on mechanical property of carbon fiber reinforced epoxy matrix composites

2016 ◽  
Vol 91 ◽  
pp. 392-398 ◽  
Author(s):  
Zhi Wang ◽  
Xueyou Huang ◽  
Longbin Bai ◽  
Ruikui Du ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Carbon Fiber ◽  
Epoxy Matrix ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

scholarly journals Microstructure and mechanical properties of short-carbon-fiber/Ti3SiC2 composites

2020 ◽  
Vol 9 (6) ◽  
pp. 716-725
Author(s):  
Guangqi He ◽  
Rongxiu Guo ◽  
Meishuan Li ◽  
Yang Yang ◽  
Linshan Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Carbon Fibers ◽  
Vickers Hardness ◽  
Matrix Composites ◽  
Transition Layers ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Short Carbon

AbstractShort-carbon-fibers (Csf) reinforced Ti3SiC2 matrix composites (Csf/Ti3SiC2, the Csf content was 0 vol%, 2 vol%, 5 vol%, and 10 vol%) were fabricated by spark plasma sintering (SPS) using Ti3SiC2 powders and Csf as starting materials at 1300 °C. The effects of Csf addition on the phase compositions, microstructures, and mechanical properties (including hardness, flexural strength (σf), and KIC) of Csf/Ti3SiC2 composites were investigated. The Csf, with bi-layered transition layers, i.e., TiC and SiC layers, were homogeneously distributed in the as-prepared Csf/Ti3SiC2 composites. With the increase of Csf content, the KIC of Csf/Ti3SiC2 composites increased, but the σf decreased, and the Vickers hardness decreased initially and then increased steadily when the Csf content was higher than 2 vol%. These changed performances (hardness, σf, and KIC) could be attributed to the introduction of Csf and the formation of stronger interfacial phases.

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