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Акимов, В. В.; Ivanov, N. P.

doi:10.1023/a:1014730415666

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The maximum volume fraction of the reinforcement either particulate or fibre in various composite materials that have been examined by ultrasonic testing is limited; for example Al/SiC w (V f : 0.25) [14], Al/SiC p (0.0 V f 0.20) [15][16][17][18], Al/SiC p (0.10 V f 0.40) [19], intermetallics/SiC f (interfacial elastic modulus) [20], Al/SiC p (0.0 V f 0.30) [21], Al/SiC p (0.02 V f 0.10) [22], Al/SiC p (0.10 V f 0.40) [23], Al/Al 2 O 3p (0.10 V f 0.20) [24], epoxy/C f , polypropylene/jute (attenuation versus porosity) [25], PEEK/Gr f (non-contact ultrasonics) [26], Al-Si/ZrO 2 (0.05 V f 0.15) [27], TiNi/TiC (0.30 V f 0.70) [28], Al/SiC p (0.0 V f 0.30) [29]. The survey shows that ultrasonic characterization of MMCs was found to focus on composites with low volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Elastic modulus of Al–Si/SiC metal matrix composites as a function of volume fraction

Kumar¹,

Bai²,

Rajkumar³

et al. 2009

J. Phys. D: Appl. Phys.

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Aluminum alloy matrix composites have emerged as candidate materials for electronic packaging applications in the field of aerospace semiconductor electronics. Composites prepared by the pressureless infiltration technique with high volume fractions in the range 0.41–0.70 were studied using ultrasonic velocity measurements. For different volume fractions of SiC, the longitudinal velocity and shear velocity were found to be in the range of 7600–9300 m s−1 and 4400–5500 m s−1, respectively. The elastic moduli of the composites were determined from ultrasonic velocities and were analysed as a function of the volume fraction of the reinforcement. The observed variation is discussed in the context of existing theoretical models for the effective elastic moduli of two-phase systems.

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Section: Introductionmentioning

confidence: 99%

Elastic modulus of Al–Si/SiC metal matrix composites as a function of volume fraction

Kumar¹,

Bai²,

Rajkumar³

et al. 2009

J. Phys. D: Appl. Phys.

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Effect of porosity on elastic characteristics of TiC/TiNi hard alloys

Акимов

Akimov

Корытов

et al. 2009

J Appl Mech Tech Phy

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UDC 621.762.4:539.32 V. V. Akimov, M. V. Akimov, M. S. Korytov, and M. V. PlastininaA substantial effect of porosity on elastic properties of TiC/TiNi hard alloys is found. It is demonstrated that application of these materials in various elements and devices of modern engineering is inspired by a combination of their properties, such as high strength, hardness, wear resistance, and resistance to oxidation and thermal shock.

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Al-Si/SiC Metal Matrix Composites Produced by Spontaneous Infiltration

Syahrial

2011

AMR

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Aluminium Silicon reinforced with 50Vf% SiC has been produced by spontaneous infiltration at 900°C for 1 hour. Aluminium infiltrated preforms containing 1%wt Mg mixed with various of Si between 2 and 14wt%, as external dopant. However Al did not infiltrate a preform containing 1wt%Mg but if mixed with Si in the preform generated in more extensive infiltration. Effect of Si on characterisation of pure Al composites by spontaneous infiltration were studied and compared to Al-Si based matrix. Microstructural analysis of MMC as well as mechanical properties were also observed. It was found that increasing of Si content generated lower porosity thus increasing hardness due to aluminium could wet SiC preform well. Although the dopant was uniformly distributed throughout the perform but microstructural analysis and hardness measurements indicate that the resultant composite may not be uniform as infiltration inwards from the top to the bottom of preform.The hardness of Al-Si composites is significantly increased with increasing of Si for both externally and internally doped system. This is associated with decreasing porosity with higher Si in composites.

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Cited by 3 publications

References 4 publications

Elastic modulus of Al–Si/SiC metal matrix composites as a function of volume fraction

Elastic modulus of Al–Si/SiC metal matrix composites as a function of volume fraction

Effect of porosity on elastic characteristics of TiC/TiNi hard alloys

Al-Si/SiC Metal Matrix Composites Produced by Spontaneous Infiltration

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