Influence of interface thermal resistance on thermal conductivity of SiC/Al composites

Liu, Qiuyuan; Wang, Feng; Wei, Shen; Qiu, Xiaopan; He, Z. Y.; Zhang, Qifu; Xie, Zhihui

doi:10.1016/j.ceramint.2019.07.358

Cited by 30 publications

(6 citation statements)

References 30 publications

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“…Combined with the porosity analysis in Figure 7B, the variation trends of thermal conductivity and porosity were inconsistent. Combined with the analysis in Figure 10B, it concluded that this inconsistency was caused by the synergistic effect of titanium dioxide and boric acid in the sample two interaction lead to the crystallization of quartz, which will increase the thermal resistance of the material matrix 35 ; however, the addition of titanium dioxide decreases the porosity of foamed ceramics.…”

Section: Resultsmentioning

confidence: 95%

“…The reduction of the thermal conductivity of porous materials can be considered from two aspects 33,34 . On the one hand, it can enhance the porosity 34 ; on the other hand, it can improve the thermal resistance of the matrix material itself 35 …”

Section: Resultsmentioning

confidence: 99%

“…33,34 On the one hand, it can enhance the porosity 34 ; on the other hand, it can improve the thermal resistance of the matrix material itself. 35 Figure 9B shows the thermal conductivity of foamed ceramics with different titanium dioxide contents. Sample B1 was 0.120 W/(m⋅K).…”

Section: Thermal Conductivitymentioning

confidence: 99%

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Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Duan

Meng

et al. 2022

Int J Applied Ceramic Tech

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The utilization of gold tailings and bentonite as raw materials for prepared foamed ceramic was studied. The effects of boric acid and titanium dioxide content on the properties and microstructures of foamed ceramic were studied from the aspects of bulk density, compressive strength, bending strength, phase composition, and micromorphology. These results show that the synergistic effect of boric acid and titanium dioxide leads to the crystallization of quartz, which enhanced the compressive strength and bending strength and decreased the thermal conductivity of foamed ceramics, while the bulk density increases gradually with the addition of titanium dioxide. Taking into account all of these properties, the optimal results are as follows: bending strength of 1.111 MPa, compressive strength of 1.165 MPa, bulk density of 0.258 g/cm3, the porosity of 81.89%, the thermal conductivity of 0.088 (W/(m⋅K)). This study indicated that gold tailings are a promising candidate for the preparation of foamed ceramics used as external insulation building materials.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

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Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Duan

Meng

et al. 2022

Int J Applied Ceramic Tech

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“…As the outcome of study, it was seen that numerically obtained results were in conformity with experimental results. Liu et al 9 used two-dimensional SEM images taken from the material surfaces to determine the effect of interfacial thermal resistance on the thermal conductivity values of SiC/Al composite materials. The ANSYS finite-element software determined the thermal conductivity value and the interfacial effect of the material through the SEM images modelled.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of B₄C amount and sintering temperature on the thermal properties of the material in Al 1070–B₄C composites

Pehlivanlı

Pul

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Today, the usage area of metal matrix and ceramic reinforced composites is increasing and researches in this field are increasing. However, majority of the studies conducted are constituted of studies on investigation of mechanical features of composites. One of the reasons why composite materials are preferred is because these materials have improved thermal property. With this experimental study, it is aimed to contribute to the literature in the area of investigating features of thermal properties. In this study, composite materials were produced at 500 °C, 550 °C and 600 °C sintering temperatures by adding 4%, 8% and 16% B4C to Al 1070 quality aluminium by powder metallurgy technique. Firstly, the microstructures of the composites were investigated. Then, experiments were conducted to determine the specific heat of composite materials at different ambient temperatures together with thermal conductivity measurements. With the data obtained from the experiments, finite-element modelling was done and the thermal properties of the composite structure were optimised. In the microstructure studies, it was determined that with the increase in the B4C reinforcement ratio, the reinforcement agglomeration and porosity in the composite structure were found. As a result of the thermal experiments, it was observed that the thermal conductivity values of the composites were inversely proportional to the amount of B4C reinforcement and as the reinforcement ratio increased, the thermal conductivity values decreased. Besides, it was determined that the sintering temperature has an effect on the thermal conductivity value and that it increases the thermal conductivity of the composites with increasing sintering temperature. The highest heat conduction coefficient was obtained at 4% B4C reinforcement ratio and 600 °C sintering temperature. It was observed that the finite-element models prepared to determine the heat conduction coefficient effectively were consistent with the experimental results.

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“…They have been widely used in automotive and aerospace industries and other fields and have attracted wide attention. [1][2][3][4][5] In traditional particle-reinforced MMCs, ceramic 6,7 (SiC, Al 2 O 3 ), short carbon fiber, 8 and new nanomaterials 9,10 (carbon nanotubes, graphene) are widely used. However, due to the inherent characteristics between the reinforced materials and the metal materials, there are a series of problems in the preparation process, which limit the future research and application of this kind of composite materials.…”

Section: Introductionmentioning

confidence: 99%

Study on microstructure and mechanical properties of Fe-based amorphous particle-reinforced Al-based matrix composites

Zhou

Long

Zhou

2020

Advanced Composites Letters

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Fe52Cr15Mo26C3B1Y3 amorphous particle-reinforced pure aluminum (Al) matrix composite was prepared by powder metallurgy. The ferrum (Fe)-based amorphous particles prepared by atomization method have good amorphous structure, and the circular reinforcement particles are evenly distributed in the Al matrix. The composite has high strength, hardness, and excellent corrosion resistance. The hardness of the composite increases gradually with the increase in the content of the reinforcement, from 46 Vickers hardness (HV) of pure Al to 220.5 HV, with remarkable effect. The tensile strength of the composite increases first and then decreases with the increase in the content of the reinforcement. When the content of reinforcement is 15%, the maximum tensile strength is 234 MPa, which is 154% higher than that of pure Al. The fracture mode of the composite is the mixture of plastic fracture and brittle fracture. The corrosion resistance of pure Al is significantly improved by the addition of reinforcements, which shows that the composite has a smaller corrosion current density and a more positive corrosion potential than that of pure Al.

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Influence of interface thermal resistance on thermal conductivity of SiC/Al composites

Cited by 30 publications

References 30 publications

Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Investigation of the effect of B₄C amount and sintering temperature on the thermal properties of the material in Al 1070–B₄C composites

Study on microstructure and mechanical properties of Fe-based amorphous particle-reinforced Al-based matrix composites

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Influence of interface thermal resistance on thermal conductivity of SiC/Al composites

Cited by 30 publications

References 30 publications

Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Utilization of gold tailings for the construction of foamed ceramics used in external insulation buildings

Investigation of the effect of B4C amount and sintering temperature on the thermal properties of the material in Al 1070–B4C composites

Study on microstructure and mechanical properties of Fe-based amorphous particle-reinforced Al-based matrix composites

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Investigation of the effect of B₄C amount and sintering temperature on the thermal properties of the material in Al 1070–B₄C composites