Enhanced thermal conductivity for Ag-deposited alumina sphere/epoxy resin composites through manipulating interfacial thermal resistance

Author(s):  
Linlin Ren ◽  
Qiang Li ◽  
Jibao Lu ◽  
Xiaoliang Zeng ◽  
Rong Sun ◽  
...  
RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23355-23362 ◽  
Author(s):  
Tao Huang ◽  
Xiaoliang Zeng ◽  
Yimin Yao ◽  
Rong Sun ◽  
Fanling Meng ◽  
...  

In recent decades, significant attention has been focused on developing composite materials with high thermal conductivity utilizing h-BN, which has outstanding thermal conductivity.


2021 ◽  
Author(s):  
Xiao-jian Wang ◽  
Liang-Bi Wang

Abstract The most common non-granular fillers are sheet and fiber. When they are distributed along the heat flux direction, the thermal conductivity of composite increases greatly. Meanwhile, the filler contact also has large effect on the thermal conductivity. However, the effect of filler contact on the thermal conductivity of composite with directional fillers has not been investigated. In this paper, the combined effects of filler contact, content and orientation are investigated. The results show that the effect of filler orientation on the thermal conductivity is greater than filler contact in low filler content, and exact opposite in high filler content. The effect of filler contact on fibrous and sheet fillers is far greater than cube and sphere fillers. This rule is affected by the filler contact. The filler content of 8% is the ideal percolation threshold of composite with fibrous and sheet filler. It is lower than cube filler and previous reports. The space for thermal conductivity growth of composite with directional filler is still very large. The effect of interfacial thermal resistance should be considered in predicting the thermal conductivity of composite under high Rc (>10-4).


2011 ◽  
Vol 23 (6) ◽  
pp. 1025-1028 ◽  
Author(s):  
Junwei Gu ◽  
Qiuyu Zhang ◽  
Jing Dang ◽  
Chao Xie

2018 ◽  
Vol 922 ◽  
pp. 163-168 ◽  
Author(s):  
Jia Wei Ma ◽  
Nai Kui Gao ◽  
Teng Yue Ren ◽  
Ze Hua Pan ◽  
Hai Yun Jin

Epoxy resin composites filled with alumina (Al2O3) particles of different morphology and content were fabricated by vacuum casting method. Electric and thermal properties of the composites were tested at room temperature to investigate the influence of Al2O3 morphology on epoxy resin composites. Electrical tests demonstrated that, volume resistivity of epoxy resin composites filled with spherical Al2O3 was bigger than with spherical-like Al2O3, relative permittivity and dielectric loss of epoxy resin composites increased with increasing of Al2O3 content, the effect on dielectric properties of spherical-like Al2O3, which had larger specific surface areas, was larger than spherical Al2O3 for the same content of filler. Thermal conductivity tests proved that, at the same content, thermal conductivity of epoxy resin composites filled with spherical-like Al2O3 was higher than with spherical Al2O3. According to the Agari model, spherical-like Al2O3 particles were easier to form conducting pathways in epoxy resin composites than spherical Al2O3 particles, considering their matte edges.


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