Microstructure of diamond/aluminum composites fabricated by pressureless metal infiltration

Shi, Jinjin; Che, Renchao; Chu, Liang; Cui, Yang; Xu, Song; Zhang, L.

doi:10.1016/j.compositesb.2011.06.006

Cited by 21 publications

(2 citation statements)

References 25 publications

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“…Zhang et al [2] found with the increase of the sintering temperatures, thermal conductivity of diamond/Al composites appears a downward trend after the first rise, meanwhile composites with high volume fraction (40%, 50%, 60%) were prepared but failed to sinter. Shi et al [3]found diamond/aluminum matrix composites were fabricated by pressureless metal infiltration process and its thermal conductivity reach as high as 518 W/m K, while its thermal expansion coefficient exhibited as low as 4.61 × 10 −6 /K. Wu et al [4] found diamond particles reinforced aluminum matrix composites were fabricated by squeeze casting method, and under diamond particle size of 400/500mesh, the tensile strength of A1/diamond composite was 145MPa, compressive strength of 1020MPa, along with bending strength of 310MPa．…”

Section: Preparation and Machinability Of Diamond/ Aluminum Matrix Co...mentioning

confidence: 99%

Research and Prospect of Diamond/Aluminum Matrix Composites

Yang

2021

KEM

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Diamond/aluminum matrix composite with high thermal conductivity is of great significance to solve the heat dissipation problem of large-scale integrated circuits and high-power components. This paper reviews the current research status of diamond/aluminum matrix composites, and analyzes the effects of the preparation and processing of the composites, the interface bonding between diamond and aluminum matrix, the reinforced diamond and matrix alloy elements on the properties of the composites.

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Section: Preparation and Machinability Of Diamond/ Aluminum Matrix Co...mentioning

confidence: 99%

Research and Prospect of Diamond/Aluminum Matrix Composites

Yang

2021

KEM

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“…However, the predicted fatigue live coincide best with the observed fatigue lives only at the large levels of cyclic plastic strain and total strain. Ding et al [23] investigated the behavior of the unreinforced 6061 aluminium alloy and short fiber reinforced 6061Al alloy MMC. They found that the addition of high-strengthAl2O3 fibres in the 6061 aluminium alloy matrix will not only strengthen the microstructure of the 6061 aluminium alloy, but also channel deformation at the tip of a crack into the matrix regions between the fibers and therefore constrain the plastic deformation in the matrix which leads in reduction of fatigue ductility.…”

Section: Fiber Re I Nforced Am Cmentioning

confidence: 99%

Study of Aluminium Metal Matrix Composites – Review

2017

IJRTER

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Metal matrix composites have superior mechanical properties in comparison to metals over a wide range of operating conditions. This makes them an attractive option in replacing metals for various engineering applications. This paper provides a literature review, on machining of Aluminium metal matrix composites (AMMC) especially the particle reinforced Aluminium metal matrix composites. This paper is an attempt to give brief account of recent work over AMMC. By suitably selecting the machining parameters, machining of AMMC can be made economical. Keywords -Aluminium metal matrix composites, Reinforcement, Cutting speed, Feed, Depth of cut, Surface finish, Mach inability etc I. INTRODUCTION In the outlook now days, finding ways to develop new structural materials with higher strength to weight ratios is one of the biggest challenges in the transportation and aerospace industry is. Properties like high specific strength, stiffness, better wear resistance and improved elevated temperature properties compared to the conventional metals and alloys are the key reasons for the increasing attention towards Metal Matrix Composites (MMCs). Composite materials consist of two or more materials that differ in chemical and physical properties and are not soluble in one another. The primary constituent in a composite material is the matrix phase that provides load transfer and structural integrity, while the reinforcement to enhance mechanical properties. The matrix and reinforcement materials can either be organic (polymers), inorganic (ceramic or glass) or metallic (aluminium, titanium, etc.). The most common forms of reinforcement materials are fibers (long and short), or particulates. Aluminium and its alloys have attracted most attention as base metal in metal matrix composites [1] . Composite materials have superior specific properties (high strength to weight ratio) compared to metals, high stiffness and good damage resistance over a wide range of operating conditions, making them an attractive option in replacing conventional materials for many engineering applications. Important properties of composite materials are: improved strength & stiffness, excellent fatigue resistance, high heat resistant, high wear resistant, high corrosion resistant, low weight etc. By suitable arrangement of metal matrix and reinforcement addition, it is possible to obtain desired properties for a particular application.Matrix materials in Metal Matrix Composites (MMC) are aluminium, magnesium and titanium alloys. Reinforcing materials in MMC are silicon carbide, boron carbide, alumina and graphite in the form of particles, short fibers (whiskers) or long fibers. In Aluminium Metal Matrix Composites (AMMC), matrix material is aluminium and reinforcement materials are silicon carbide, aluminum oxide, boron carbide, graphite etc. in the form of fibers, whiskers & particles. This paper discusses the important aspects of machining of MMC especially the Aluminium metal matrix composites. Fibers are the important class of reinforcements...

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