scholarly journals Effect of short carbon fiber content on SCFs/AZ31 composite microstructure and mechanical properties

2020 ◽  
Vol 17 ◽  
pp. 103074
Author(s):  
Hongyu Xu ◽  
Zhao Yang ◽  
Maoliang Hu ◽  
Zesheng Ji
2012 ◽  
Vol 457-458 ◽  
pp. 348-353
Author(s):  
Jian Chao Shi ◽  
Yi Han Li ◽  
Guang Chun Yao ◽  
Peng Fei Yan ◽  
Huan Liu

Abstract: Copper coated short carbon fiber reinforced aluminum alloy matrix composites have been prepared with 0.3-1.5 wt% Mg as alloying addition by stir casting. Effect of Mg on the microstructure and mechanical properties of the composites was investigated. The microstructure was observed by scanning electron microscopy and the results show that adding Mg can make the distribution of carbon fibers uniform in the composites, reduce laminated and agglomerated. Tensile test and hardness test were carried out, the results show that the tensile strength and the hardness of the composite is increased by 13% and 8% when Mg content is 0.9 wt%.


2007 ◽  
Vol 336-338 ◽  
pp. 2104-2106
Author(s):  
Li Li Yang ◽  
Jiu Peng Zhao ◽  
Yao Li

Silica xerogels were prepared by sol-gel process and non-supercritical drying. Two kinds of reinforcements, SiC whisker and short carbon fiber (CF), were chosen to control the shrinkage during drying process and improve the mechanical properties of xerogels. Microstructure and mechanical properties of samples were examined. It was found that the addition of SiC whisker could greatly improve the elastic modulus of silica xerogels, while short CF could prominently decrease the volume shrinkage ratio but could not improve the elastic modulus. Analysis showed that the difference between the two reinforcement mechanisms was caused by the interface and the size of the doped fiber and whisker.


2020 ◽  
Vol 18 (11) ◽  
pp. 801-805
Author(s):  
Kyung-Soo Jeon ◽  
R. Nirmala ◽  
Seong-Hwa Hong ◽  
Yong-II Chung ◽  
R. Navamathavan ◽  
...  

This manuscript is dealt with the synthesis of short carbon fibers reinforced polycarbonate polymer composite by using injection modeling technique. Four different composite materials were obtained by varying the carbon fibers weight percentage of 10, 20, 30 and 40%. The synthesized carbon fibers/polycarbonate composites were characterized for their morphological, mechanical and thermal properties by means of scanning electron microscopy (SEM), universal testing machine (UTM) and IZOD strength test. The resultant carbon fibers/polycarbonate composites exhibited excellent interfacial adhesion between carbon fibers and polycarbonate resin. The tensile properties were observed to be monotonically increases with increasing carbon fiber content in the composite resin. The tensile strength of carbon fiber/polycarbonate composites with the carbon fiber content 40% were increased about 8 times than that of the pristine polycarbonate matrix. The carbon fibers/polycarbonate composites with 40 wt.% of short carbon fibers exhibited a high tensile strength and thermal conductivity. The incorporation of carbon fiber in to polycarbonate resin resulted in a significant enhancement in the mechanical and the thermal behavior. These studies suggested that the short carbon fiber incorporated polycarbonate composite matrix is a good candidate material for many technological applications.


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