Thermal-Expansion Behavior of Two-Phase Solids

Fahmy, A. A.; Ragai, A. N.

doi:10.1063/1.1658619

Cited by 137 publications

(52 citation statements)

References 6 publications

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“…If (49) which corresponds with the relations obtained by Wang and Kwei [56] and Fahmy and Ragai [57] from a consideration of the displacements and stresses in a composite sphere.…”

Section: Thermal Expansion Coefficientsmentioning

confidence: 71%

The physical properties of composite materials

Hale

1976

J Mater Sci

301

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In this review, the physical properties of composite materials are discussed; however, discussion of the mechanical properties has been excluded except when necessary for the consideration of properties such as thermal expansion or swelling and shrinkage. One of the main aims in the review has been to show how the theoretical and experimental information that is already available may be used (a) to design and construct composite materials with predetermined physical properties and (b) to ensure that the physical properties of composite materials are properly measured and properly defined.

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“…If (49) which corresponds with the relations obtained by Wang and Kwei [56] and Fahmy and Ragai [57] from a consideration of the displacements and stresses in a composite sphere.…”

Section: Thermal Expansion Coefficientsmentioning

confidence: 71%

The physical properties of composite materials

Hale

1976

J Mater Sci

301

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“…which corresponds with the relations obtained by Fahmy and Ragai [6]. These two authors derived equation ( 1.8) from ' a consideration the difference between linear strains at interfaces in a composite sphere.…”

Section: Introductionmentioning

confidence: 99%

An alternative method for determining the coefficient of thermal expansion of composite material of spherical particles

Duc¹,

Tung²,

Hang³

2007

Vietnam J. Mech.

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Abstract. Composite material is widely used in modern structures. Many researchers have been involved in studying, developing and applying this kind of material. The composite material of spherical particles is a material composed of continuous matrix phase and spherical ·particles. In modern technique, it is very necessary to consider the influence of temperature on toughness and stability of structures. Therefore, determining the coefficient of thermal expansion of composite as a function of the coefficients and volume fractions of matrix and particle phases is a practical requirement. In this paper. we would like to introduce an alternative derivation method in order to obtain the thermal expansion coefficient of two-phase composite of spherical particles. Our results are the same as Vanin's and other authors'.

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“…In general, Turner's equation yields lower CTE values compared to the simple rule of mixtures method because the phases with low expansion coefficients are likely to have high elastic moduli [26]. Hermosilla et al [27] calculate the CTE of a phase aggregate using a modified version of an expression derived by Wakashima et al [28] given by…”

Section: Mixtures Of Phasesmentioning

confidence: 99%

“…The method can be used to recognise the micro-stresses, termed tessellated stresses, which are known to develop between differentially expanding phases. The most recognised formula which accounts for the elastic stresses is given by the Turner's equation [25,26] a ¼…”

Section: Mixtures Of Phasesmentioning

confidence: 99%

Modelling the coefficient of thermal expansion in Ni-based superalloys and bond coatings

et al. 2016

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The coefficient of thermal expansion (CTE) of nickel-based superalloys and bond coat layers was modelled by considering contributions from their constituent phases. The equilibrium phase composition of the examined materials was determined using thermodynamic equilibrium software with an appropriate database for Nibased alloys, whereas the CTE and elastic properties of the principal phases were modelled using published data. The CTEs of individual phases were combined using a number of approaches to determine the CTE of the phase aggregate. As part of this work, the expansion coefficients of the superalloy IN-738LC and bond coat Amdry-995 were measured as a function of temperature and compared with the model predictions. The predicted values were also validated with the published data for the single-crystal superalloy CMSX-4 and a number of other Ni-based alloy compositions at 1000 K. A very good agreement between experiment and model output was found, especially up to 800 C. The modelling approaches discussed in this paper have the potential to be an extremely useful tool for the industry and for the designers of new coating systems.

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Thermal-Expansion Behavior of Two-Phase Solids

Cited by 137 publications

References 6 publications

The physical properties of composite materials

The physical properties of composite materials

An alternative method for determining the coefficient of thermal expansion of composite material of spherical particles

Modelling the coefficient of thermal expansion in Ni-based superalloys and bond coatings

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