2022
DOI: 10.1016/j.ceramint.2021.12.252
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Improved thermal conductivity of ceramic-epoxy composites by constructing vertically aligned nanoflower-like AlN network

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Cited by 17 publications
(8 citation statements)
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“…EP exhibits an extremely low TC of 0.22 W/(m K). Overall, TC increases with filler content in all cases, which may be attributed to the fact that as the filler content increases, more AlN particles interact with each other, creating efficient heat conductive channels and increasing thermal diffusion through the composite; additionally, it was noticed that the TC is affected by the geometry of filler particles [ 39 , 40 , 56 , 66 , 67 , 68 , 69 , 70 , 71 ]. The TC of the BN/EP composites is slightly higher than that of AlN/EP composites at lower filler loadings.…”
Section: Resultsmentioning
confidence: 99%
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“…EP exhibits an extremely low TC of 0.22 W/(m K). Overall, TC increases with filler content in all cases, which may be attributed to the fact that as the filler content increases, more AlN particles interact with each other, creating efficient heat conductive channels and increasing thermal diffusion through the composite; additionally, it was noticed that the TC is affected by the geometry of filler particles [ 39 , 40 , 56 , 66 , 67 , 68 , 69 , 70 , 71 ]. The TC of the BN/EP composites is slightly higher than that of AlN/EP composites at lower filler loadings.…”
Section: Resultsmentioning
confidence: 99%
“…Moreover, three following sample shapes were prepared for the distinct analyses described in this study: rectangular (84 mm in length, 13 mm in width, and ~2.5 mm in thickness), cylindrical (8.5 mm in height and 34 mm in diameter), and square (49 mm length, 49 mm width, and ~0.9 mm thickness). To assess the heat transfer capability of the EP composites, their cooling curves were recorded using a thermographic camera [ 18 , 40 , 44 , 47 , 56 ]. The composites at the highest filler loading obtained in this study were assessed using this method; all samples were preheated in an oven at 120 °C for 4 h. As displayed in Figure 5 a,b, the single-filler composites show a faster heat sink capability than the pristine EP from the very beginning of the test.…”
Section: Resultsmentioning
confidence: 99%
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“…Although the thermal conductivity can be improved more effectively by high loadings or hybridizing fillers with different particle sizes and morphologies; however, as the filler particles are not in contact with each other directly, the polymer matrix with low thermal conductivity between them hinders the formation of continuous heat transfer pathways. Therefore, researchers have managed to control the distribution of fillers through various effective means, and then construct a completely continuous filler network [ 25 , 38 , 71 , 72 , 77 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 ]. This approach not only directly reduces the number/area of the interface between filler and matrix but also reduces the filler–filler interface, which fundamentally decreases the interfacial thermal resistance during heat transfer.…”
Section: Strategies For Enhancing Thermal Conductivity Of Polymer Com...mentioning
confidence: 99%
“…However, this severely limits the applications of polymers in the thermal management of modern electronics due to their low intrinsic thermal conductivity (~0.2 W•m −1 •K −1 ); therefore, the introduction of fillers with high thermal conductivity into polymer substrates is identified as the ideal solution [8][9][10][11][12]. To meet the requirements of electrical insulation, many efforts have been devoted to introducing insulation fillers into the polymer matrix, such as boron nitride [13], aluminum nitride [14], silicon carbide, alumina [15] and other ceramic fillers. However, their relatively low intrinsic thermal conductivity often needs a Polymers 2022, 14, 2512 2 of 13 lot of fillers to significantly improve the thermal conductivity of composites, which will result in a loss of flexibility [16].…”
Section: Introductionmentioning
confidence: 99%