Effect of an inhomogeneous interphase on the thermal expansion coefficient of a particulate composite

Lombardo, N.

doi:10.1016/j.compscitech.2005.05.006

Cited by 27 publications

(22 citation statements)

References 31 publications

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“…This interphase region was characterized using differential scanning calorimetry (DSC). Specifically and following ideas reported in the literature, the interphase volumetric fraction was estimated from the DSC curves [10,26,27]. To simplify our study, the geometry of the particles used as filler of the epoxy-based composites was assumed to be spherical with a characteristic radius r f .…”

Section: Evidence On the Inclusion-matrix Interphases From Dsc Measurmentioning

confidence: 99%

Influence of the filler content on the free nanohole volume in epoxy-based composites

Tognana¹,

Salgueiro²,

Somoza³

et al. 2013

Express Polym. Lett.

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Abstract.A study on free nanohole volumes in particulate epoxy matrix composites as a function of the aluminum particles content is presented. Specifically, the influence of the filler content in the epoxy matrix on the nanohole volume is analyzed in terms of the mechanical and morphological properties of the composites fabricated. Nanoholes data were measured using positron annihilation lifetime spectroscopy recently published by the authors. Applying the Park-Earmme micromechanical model, these data are interpreted in terms of the thermal stresses generated during the curing process applied during fabrication. Some input parameters of the model were experimentally obtained. In order to obtain a satisfactory description of the evolution of the free nanohole volume in the whole range of filler contents, a contribution due to the matrix-particle interphases is taken into account in the micromechanical model. To this aim, specific information on the interphases was obtained using atomic force microscopy (AFM), scanning electron microscopy (SEM), differencital scanning calorimetry (DSC) and a free-constraint analysis of the positron lifetime data.

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Section: Evidence On the Inclusion-matrix Interphases From Dsc Measurmentioning

confidence: 99%

Influence of the filler content on the free nanohole volume in epoxy-based composites

Tognana¹,

Salgueiro²,

Somoza³

et al. 2013

Express Polym. Lett.

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“…Some theoretical modeling has been used to study the effects of fillers on the CTE of polymeric composites [12][13][14]. Tognana et al [15] well described the CTE experimental results of Al/epoxy composites as a function of the Al filler content by the Hashin-Shtrikman model.…”

Section: Introductionmentioning

confidence: 99%

Improvements in thermo-mechanical and rheological properties of SiO2/epoxy composites using different types of SiO2

Zhang

Zhu

et al. 2015

J Mater Sci: Mater Electron

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Single-size 400 nm-SiO 2 and multi-size 1 and 5 lm-SiO 2 were used as fillers in epoxy matrix. The fillers with the larger particle size and multi-size SiO 2 particles mixing is beneficial to lower the viscosity and increase the filler loading. Among the composites, the 60 wt% 5 lmSiO 2 epoxy composite has the best properties with both low coefficients of thermal expansion (CTE) of 28.8 ppm/°C and low viscosity of *50 Pa s, which shows its capability to achieve the required low CTE and viscosity values in the electronic packaging. Different theoretical proposals were used to estimate the CTE. Maxwell-Garnett equation fits the experimental data well. In addition, the mixture law and Bruggeman effective medium theory offer the upper and lower limits to the CTE.

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“…In the literature, to describe this region into a polymer matrix-inclusion composite it has been considered as a hybrid phase between main phases (inclusion and matrix), called interphase or mesophase [1]. In particular, this region facilitates a matching for the chemical, physical and mechanical properties between matrix and inclusion [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

On the matrix-particle interphase in epoxy-based composites

Tognana

Salgueiro

Somoza

2010

Journal of Alloys and Compounds

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Effect of an inhomogeneous interphase on the thermal expansion coefficient of a particulate composite

Cited by 27 publications

References 31 publications

Influence of the filler content on the free nanohole volume in epoxy-based composites

Influence of the filler content on the free nanohole volume in epoxy-based composites

Improvements in thermo-mechanical and rheological properties of SiO2/epoxy composites using different types of SiO2

On the matrix-particle interphase in epoxy-based composites

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