Tensile properties and thermal expansion behaviors of continuous molybdenum fiber reinforced aluminum matrix composites

Chen, Liang-Guang; Lin, Su-Jien; Chang, S. L.

doi:10.1016/j.compscitech.2005.10.025

Cited by 19 publications

(8 citation statements)

References 23 publications

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“…When the fibre content of continuous Mo-fibre-reinforced AMCs produced by diffusion bonding was increased, the CTE of the composites decreased as close to the values of Mo fibres. Moreover, the CTE of the unidirectional composite was found to increase with the increase in temperature, whereas in the case of dual directional composites, with increasing temperature, the CTE first decreased due to the expansion constraints created by large accumulated thermal stress, then after reaching a minimum at about 250 ° C, it starts increasing, which may be attributed to matrix yielding and interfacial decohesion [1] .…”

Section: Thermal Expansionmentioning

confidence: 85%

“…There has been a rapid growth in the development of metal matrix composites (MMCs) since the 1960s due to a variety of properties it offered, such as high specific strength, high specific stiffness, low density, good elevated temperature stability, and good wear resistance [1] . Their commercial availability has also been increasing steadily, and as a result, information about the thermal properties of these materials is essential for the proper designing of MMC applications [2] .…”

Section: Introductionmentioning

confidence: 99%

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The behaviour of aluminium matrix composites under thermal stresses

Dash

Sukumaran

Ray

2014

Science and Engineering of Composite Materials

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The present review work elaborates the behaviour of aluminium matrix composites (AMCs) under various kinds of thermal stresses. AMCs find a number of applications such as automobile brake systems, cryostats, microprocessor lids, space structures, rocket turbine housing, and fan exit guide vanes in gas turbine engines. These applications require operation at varying temperature conditions ranging from high to cryogenic temperatures. The main objective of this paper was to understand the behaviour of AMCs during thermal cycling, under induced thermal stresses and thermal fatigue. It also focuses on the various thermal properties of AMCs such as thermal conductivity and coefficient of thermal expansion (CTE). CTE mismatch between the reinforcement phase and the aluminium matrix results in the generation of residual thermal stress by virtue of fabrication. These thermal stresses increase with increasing volume fraction of the reinforcement and decrease with increasing interparticle spacing. Thermal cycling enhances plasticity at the interface, resulting in deformation at stresses much lower than their yield stress. Low and stable CTE can be achieved by increasing the volume fraction of the reinforcement. The thermal fatigue resistance of AMC can be increased by increasing the reinforcement volume fraction and decreasing the particle size. The thermal conductivity of AMCs decreases with increase in reinforcement volume fraction and porosity.

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Section: Thermal Expansionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

The behaviour of aluminium matrix composites under thermal stresses

Dash

Sukumaran

Ray

2014

Science and Engineering of Composite Materials

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“…The generation of thermal residual stresses in SiC/Ti-6Al-4V composite when cooling from a high manufacturing temperature was investigated by Nimmer et al [21], where 3-D FEM elements were used to model the unit cell of the rectangle fibre array pattern. Furthermore, many analytical [22][23][24][25][26] and experimental [27][28][29][30] studies are reported in the literature on residual thermal stresses. This paper deals with the influence of the composites fabrication process on the nature of the fibre/matrix interface and the resulting load transfer behaviour from matrix to fibre.…”

Section: Early Work Of Kelly and Tysonmentioning

confidence: 99%

Analysis of Load Transfer Behaviour and Determination of Interfacial Shear Strength in Single-Fibre-Reinforced Titanium Alloys

Matikas

2007

Advanced Composites Letters

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The effect of interfaces on load sharing behaviour has been evaluated by performing single-fibre fragmentation (SFF) experiments and analysis of titanium matrix composites at ambient and elevated temperatures. Fibre breaks were monitored by acoustic emission sensors, and the break locations were determined in-situ by an innovative ultrasonic non-destructive evaluation technique. Data analysis of SFF testing was performed using the Kelly-Tyson model. The length of fibre fragments and distribution were determined using innovative nondestructive technique. This study demonstrates that composite processing conditions can significantly affect the nature of the fibre/matrix interface and the resulting fragmentation behaviour of the fibre. Further, thermal micro-residual stresses, generated during the fabrication process and in-service due to the difference in thermomechanical characteristics of the model composites constituents, play a major role influencing the interfacial shear stress transfer behaviour in single-fibre titanium matrix composites.

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“…Al matrix composites (AMCs) are highperformance lightweight materials, which have attracted increasing attention for improving the energy efficiency in various applications such as automotive, marine, packaging, electronic, and aerospace industries, owing to their high specific strength, superior thermal and electrical conductivities, and cost-effective properties [2]. Various reinforcement such as ceramic particles [3][4][5][6][7], carbon nanotubes (CNTs) [8][9][10][11][12][13], graphene [14][15][16][17][18][19][20], and refractory metals [21,22], have been extensively studied and incorporated into AMCs over the past two decades. Among reinforcement, graphene is considered as the Supplemental data for this article can be accessed here.…”

Section: Introductionmentioning

confidence: 99%