In situ formation of a cellular graphene framework in thermoplastic composites leading to superior thermal conductivity

2017 ◽  
Vol 5 (13) ◽  
pp. 6164-6169 ◽  
Author(s):  
Fakhr E. Alam ◽  
Wen Dai ◽  
Minghui Yang ◽  
Shiyu Du ◽  
Xinming Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Hot Pressing ◽  
Single Step ◽  
Thermoplastic Composites ◽  
In Situ Formation

With single-step hot-pressing processes, a remarkable enhancement of the thermal conductivity of graphene/thermoplastic composites has been achieved, based on the formation of an interconnected, thermally percolating graphene framework in their matrix.

scholarly journals Method for determining the thermal conductivity of in situ formation rock using drilling cuttings

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065015
Author(s):  
Fu Yi ◽  
Xupeng Qi ◽  
Xuexin Zheng ◽  
Huize Yu ◽  
Wenming Bai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
In Situ Formation

Enhanced through-plane thermal conductivity in Polymer nanocomposites by constructing graphene-supported BN nanotubes

2020 ◽  
Vol 8 (28) ◽  
pp. 9569-9575
Author(s):  
Xu Li ◽  
Ya Li ◽  
Md Mofasserul Alam ◽  
Jibin Miao ◽  
Peng Chen ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Polymer Nanocomposites ◽  
Hot Pressing ◽  
High Thermal Conductivity ◽  
Bn Nanotubes

A graphene-supported BNNT filler is fabricated via the in situ implanting of BNNTs on graphene, with the formation of high thermal conductivity nanocomposites via hot-pressing.

Single step in situ formation of porous zinc oxide/PMMA nanocomposites by pulsed laser irradiation: kinetic aspects and mechanisms

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11412-11418 ◽  
Author(s):  
Davide Morselli ◽  
Alice Scarpellini ◽  
Athanassia Athanassiou ◽  
Despina Fragouli
Keyword(s):  
Zinc Oxide ◽  
Porous Structure ◽  
Laser Irradiation ◽  
Zno Nanoparticles ◽  
Pulsed Laser ◽  
Single Step ◽  
Pmma Matrix ◽  
In Situ Formation ◽  
Pulsed Laser Irradiation

Simultaneous localizedin situformation of ZnO nanoparticles and porous structure in PMMA matrix by laser induced process.

Fabrication of Nano-MgO Reinforced Fe-Cr-Ni Composites by Reactive Hot Pressing

2009 ◽  
Vol 620-622 ◽  
pp. 551-554 ◽  
Author(s):  
Chang Chen ◽  
Jian Feng Yang ◽  
Ji Qiang Gao ◽  
Cong Yang Chu
Keyword(s):  
Hot Pressing ◽  
Low Temperatures ◽  
Bending Strength ◽  
Exothermic Reaction ◽  
X Ray ◽  
Three Point Bending ◽  
Fine Grained ◽  
In Situ Formation ◽  
Reactive Hot Pressing

The self-propagating combustion reaction 0.741Mg + 0.247Fe2O3 + 0.188Ni + 0.318Cr → 0.741MgO + Fe0.494Ni0.188Cr0.318 was applied to prepare a nano-MgO reinforced Fe-Cr-Ni composite, by reactive hot pressing (RHP) under a condition of 700°C/30MPa/2h. The densification was enabled by the low temperatures produced by the exothermic reaction. According to TG-DTA and X-ray diffractometry (XRD), the highly-exothermic thermite reaction began at about 600°C and the in-situ formation of composites comprised predominantly of (FCC) Cr0.19Fe0.7Ni0.11, (FCC) Fe-Cr, (BCC) MgO and a small quantity of (BCC) MgFe2O4. The Vickers hardness was 3.67GPa, the three-point bending strength was 112.5±10MPa, and the fracture toughness was 3.28 MPa•m1/2. The microstructure of the composite was observed via scanning electron microscopy. This indicated that the distributions of in-situ-formed (BCC) MgO phases (~800 nanometers) were homogeneous into in a matrix of a fine-grained metallic alloy phases that gather together to form agglomerates in the composite.

In situ Formation of Thermoplastic Composites: Ultem/Vectra

1991 ◽  
Vol 25 (7) ◽  
pp. 788-808 ◽  
Author(s):  
T. Sun ◽  
D. G. Baird ◽  
H. H. Huang ◽  
D. S. Done ◽  
G. L. Wilkes
Keyword(s):  
Thermoplastic Composites ◽  
In Situ Formation

scholarly journals Fabrication, Microstructure, and Properties of In Situ V2C-Reinforced Copper Composites

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1829
Author(s):  
Yu Quan ◽  
Baotong Hu ◽  
Shuai Fu ◽  
Detian Wan ◽  
Yiwang Bao ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Tensile Strength ◽  
Vickers Hardness ◽  
Hot Pressing ◽  
Physical And Mechanical Properties ◽  
Microstructure And Properties

In this paper, in situ V2C-reinforced Cu composites were successfully fabricated by hot pressing at 750 °C under 25 MPa using Cu and V2SnC powders. Due to decomposition of V2SnC to V2C and Sn during sintering, Sn atoms entered the crystal structure of Cu. Therefore, final compositions of composites consisted of Cu(Sn) and V2C phases. Here, copper composites with 0, 5, 10, 20, and 30 vol.% V2C were designed. Their microstructures and physical and mechanical properties were systematically investigated. It was observed that with increasing V2C content, electrical conductivity decreased from 0.589 × 108 S·m−1 to 0.034 × 108 S·m−1 and thermal conductivity decreased from 384.36 W⋅m−1⋅K−1 to 24.65 W·m−1·K−1, while Vickers hardness increased from 52.6 HV to 334 HV. Furthermore, it was found that composites with 20 vol.% V2C had the highest tensile strength (440 MPa).

In-Situ Formation of Reinforced Thermoplastic Composites

1990 ◽  
Vol 3 (1) ◽  
pp. 81-88 ◽  
Author(s):  
D.G. Baird ◽  
T. Sun ◽  
D.S. Done ◽  
G.L. Wilkes
Keyword(s):  
Thermoplastic Composites ◽  
In Situ Formation
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