Determining the interphase thickness and properties in carbon fiber reinforced fast and conventional curing epoxy matrix composites using peak force atomic force microscopy

2019 ◽  
Vol 184 ◽  
pp. 107877 ◽  
Author(s):  
Yixin Qi ◽  
Dazhi Jiang ◽  
Su Ju ◽  
Jianwei Zhang ◽  
Xin Cui
2016 ◽  
Vol 91 ◽  
pp. 392-398 ◽  
Author(s):  
Zhi Wang ◽  
Xueyou Huang ◽  
Longbin Bai ◽  
Ruikui Du ◽  
Yaqing Liu ◽  
...  

2020 ◽  
Vol 40 (4) ◽  
pp. 291-299
Author(s):  
Meiling Yan ◽  
Chengwei Zhang ◽  
Weicheng Jiao ◽  
Jun Li ◽  
Yifan Huang ◽  
...  

AbstractThis study focuses on the influence of cryogenic temperature on the interface of carbon fiber reinforced plastics (CFRPs). Results of interfacial shear strength (IFSS) and mode II interlaminar fracture toughness (GIIC) at −196°C increased by 15.3% and 27.6% compared to the condition at room temperature (RT). By measuring the IFSS at −196°C, a new experimental method was designed based on microbond test. The layer shear fracture morphologies of CFRP were observed by atomic force microscopy and scanning electron microscopy, respectively. In order to study the interlaminar fracture mechanism, the interface and resin fracture hybrid model was built, and the shear-lag theory of interfacial toughness was adopted to analyze the energy release rate (Gdc) of microbond. The results showed that the Gdc value was increased by 11.5% from RT to −196°C temperature. A higher GIIC of CFRP was dominated by the higher IFSS and resin energy absorption at −196°C.


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