Enhanced thermal properties of epoxy composites by using hyperbranched aromatic polyamide grafted silicon carbide whiskers

2014 ◽  
Vol 22 (4) ◽  
pp. 405-411 ◽  
Author(s):  
Zhengkai Yuan ◽  
Jinhong Yu ◽  
Baolin Rao ◽  
Hua Bai ◽  
Nan Jiang ◽  
...  
2016 ◽  
Vol 68 (4) ◽  
pp. 551-556 ◽  
Author(s):  
Jungsoo Kim ◽  
Yang Do Kim ◽  
Dae Geun Nam ◽  
Jong-Seong Bae ◽  
Jeong Hyun Yeum ◽  
...  

2013 ◽  
Vol 24 (3) ◽  
pp. 348-356 ◽  
Author(s):  
Rong Qian ◽  
Jinhong Yu ◽  
Liyuan Xie ◽  
Yanan Li ◽  
Pingkai Jiang

2011 ◽  
Vol 2 (6) ◽  
pp. 1380 ◽  
Author(s):  
Jinhong Yu ◽  
Xingyi Huang ◽  
Lichun Wang ◽  
Peng Peng ◽  
Chao Wu ◽  
...  

2017 ◽  
Vol 7 (1) ◽  
pp. 108 ◽  
Author(s):  
Yongkun Wang ◽  
Wenchao Tian ◽  
Xiaohan Liu ◽  
Junjie Ye

2021 ◽  
pp. 51324
Author(s):  
Yasmine N. Baghdadi ◽  
Jihad Sinno ◽  
Kamal Bouhadir ◽  
Mohammad Harb ◽  
Samir Mustapha ◽  
...  

2019 ◽  
Vol 9 (20) ◽  
pp. 4388 ◽  
Author(s):  
Artyom Plyushch ◽  
Jan Macutkevič ◽  
Polina Kuzhir ◽  
Aliaksei Sokal ◽  
Konstantin Lapko ◽  
...  

Hybrid composite materials based on an aluminium phosphate matrix with silicon carbide whiskers and multi-walled carbon nanotubes were studied in a wide frequency range (20 Hz to 36 GHz). It was demonstrated, that the addition of the silicon carbide whiskers enhances the dielectric permittivity and conductivity. This was explained by the difference in tunnelling parameters. Hybrid ceramics with nanotubes and whiskers also exhibits substantially improved electromagnetic shielding properties. The hybrid ceramics with 10 wt. % silicon carbide whiskers and a 1 mm thick 1.5 wt. % carbon nanotube layer, show higher than 50% absorption of electromagnetic radiation.


2020 ◽  
Vol 54 (29) ◽  
pp. 4611-4620 ◽  
Author(s):  
Akm Samsur Rahman ◽  
Chirag Shah ◽  
Nikhil Gupta

The current research is focused on developing a geopolymer binder using rice husk ash–derived silica nanoparticles. Four types of rice husks were collected directly from various rice fields of Bangladesh in order to evaluate the pozzolanic activity and compatibility of the derived rice husk ashes with precursors of sodium-based geopolymers. Silicon carbide whiskers were introduced into sodium-based geopolymers in order to evaluate the response of silicon carbide whiskers to the interfacial bonding and strength of sodium-based geopolymers along with rice husk ashes. Compression, flexural and short beam shear tests were performed to investigate the synergistic effect of rice husk ashes–derived silica and commercially available silicon carbide whiskers. Results show that rice husk ashes–derived spherical silica nanoparticles reduced nano-porosity of the geopolymers by ∼20% and doubled the compressive strength. The simultaneous additions of rice husk ashes and silicon carbide whiskers resulted in flexural strength improvement by ∼27% and ∼97%, respectively. The increase in compressive strength due to the inclusion of silica nanoparticles is related to the reduction in porosity. The increase in flexural strength due to simultaneous inclusion of silica and silicon carbide whiskers suggest that silica particles are compatible with the metakaolin-based geopolymers, which is effective in consolidation. Finally, microscopy suggest that silicon carbide whiskers are effective in increasing bridged network and crack resistance.


2010 ◽  
Vol 123-125 ◽  
pp. 1031-1034 ◽  
Author(s):  
Sandhyarani Biswas ◽  
Alok Satapathy ◽  
Amar Patnaik

In order to obtain the favoured material properties for a particular application, it is important to know how the material performance changes with the filler content under given loading conditions. In this study, a series of bamboo fiber reinforced epoxy composites are fabricated using conventional filler (aluminium oxide (Al2O3) and silicon carbide (SiC) and industrial wastes (red mud and copper slag) particles as filler materials. By incorporating the chosen particulate fillers into the bamboo-fiber reinforced epoxy, synergistic effects, as expected are achieved in the form of modified mechanical properties. Inclusion of fiber in neat epoxy improved the load bearing capacity (tensile strength) and the ability to withstand bending (flexural strength) of the composites. But with the incorporation of particulate fillers, the tensile strengths of the composites are found to be decreasing in most of the cases. Among the particulate filled bamboo-epoxy composites, least value of void content are recorded for composites with silicon carbide filling and for the composites with glass fiber reinforcement minimum void fraction is noted for red mud filling. The effects of these four different ceramics on the mechanical properties of bamboo- epoxy composites are investigated and the conclusions drawn from the above investigation are discussed.


Sign in / Sign up

Export Citation Format

Share Document