The fabrication of metal matrix composites by a pressureless infiltration technique

Aghajanian, M. K.; Rocazella, M. A.; Burke, J.T.; Keck, S.

doi:10.1007/bf00576541

Cited by 283 publications

(102 citation statements)

References 11 publications

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“…The peak of the Al4C3 crystal appeared until the remelting duration was extended to 105 min, and it should be observed that such Al4C3 peak of the composite remelted for 120 min is much higher than the one remelted for 105 min, indicating that the longer remelting duration led to the more serious reaction shown in Equation (1). The generated Al4C3 could not only react with the atmospheric moisture to degrade the properties of the composites, but also offer interfacial thermal resistance to reduce the TC of the composites by 20%-30% depending on the extent of the reaction [21][22][23]. Moreover, Masayuki et al [24] further indicated that a strong interface bonding resulted from the tendency for the Al4C3 reaction layer to form a semi-coherent interface with the aluminum matrix, and it can be deduced that the semi-coherent interface should give rise to the increase of interfacial thermal resistance to reduce the TC of the composites.…”

Section: Microstructurementioning

confidence: 97%

Effect of Remelting Duration on Microstructure and Properties of SiCp/Al Composite Fabricated by Powder-Thixoforming for Electronic Packaging

Cai

Chen

Zhang

2016

Metals

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Abstract:In this work, a novel processing method called powder thixoforming was proposed to prepare composites reinforced with 50 vol % of SiC particles (SiC p ) that were used for electronic packaging in order to investigate the effects of remelting duration on its microstructure and properties. Optical Microscope (OM), Scanning Electron Microscope (SEM), X-ray Diffraction (XRD) and Transmission Electron Microscope (TEM) methods were applied for the material characterization and the corresponding physical and mechanical properties were examined in detail. The obtained results indicate that the remelting duration exerted a large effect on the microstructure as well as the SiC p /Al interfacial reaction. The density and hardness of the composite continuously increased with increasing remelting duration. The thermal conductivity (TC) and bending strength (BS) first increased during the initial 90 min and then decreased. The remelting duration exerted a limited influence on the coefficient of thermal expansion (CTE). The optimal TC, BS, and hardness of these composites were up to 135.79 W/(m·K), 348.53 MPa, and 105.23 HV, respectively, and the CTE was less than 6.5 ppm/K after the composites were remelted at 600 • C for 90 min. The properties of the composites could thus be controlled to conform to the application requirements for electronic packaging materials.

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Section: Microstructurementioning

confidence: 97%

Effect of Remelting Duration on Microstructure and Properties of SiCp/Al Composite Fabricated by Powder-Thixoforming for Electronic Packaging

Cai

Chen

Zhang

2016

Metals

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“…Proses pembuatan Komposit Matrik Logam (KML) dapat dilakukan melalui berbagai metode dan yang berkembang saat ini adalah metode infiltrasi logam tanpa tekanan atau pressureless metal infiltration (PRIMEX) [1]. Metode ini dikembangkan karena mempunyai keunggulan dibandingkan dengan proses lain seperti pengecoran ataupun proses metalurgi serbuk.…”

Section: Pendahuluanunclassified

“…Derajat pembasahan yang tinggi antara penguat dan matriknya akan menimbulkan ikatan yang kuat. Suhu mempengaruhi kinetika infiltrasi dan infiltrasi penuh (full infiltration) pada material Al5Si-10Mg terjadi pada suhu 800 o C, tetapi pada 700 o C hanya terjadi sebagian [1].…”

Section: Pendahuluanunclassified

PENGARUH SUHU PEMANASAN DAN WAKTU TAHAN TERHADAP KARAKTERISASI MATERIAL KOMPOSIT LOGAM AL/SiC HASIL INFILTRASI TANPA TEKANAN

Zulfia¹,

Ariati²

2010

MST

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AbstrakPembuatan komposit matriks logam Al-SiC dapat dilakukan dengan metode infiltrasi tanpa tekanan (PRIMEX). Penelitian ini dilakukan dengan menggunakan ingot alumunium AC2B sebagai matrik dan 50%Vf serbuk SiC sebagai penguat yang dicampur dengan 10%wt Mg sebagai wetting agent. Waktu tahan dan suhu pemanasan pada penelitian ini divariasikan untuk melihat pengaruh waktu tahan dan suhu pemanasan terhadap sifat mekanik dari komposit Al-SiC. Waktu tahan yang digunakan adalah 2, 5, 8, 10, dan 12 jam sedangkan suhu pemanasan yang digunakan 750, 800, 900, 1000, dan 1100°C. Komposit yang diperoleh dianalisa baik sifat mekanis seperti densitas, porosital, kekerasan, laju aus dan metalography. Lamanya waktu tahan dan meningkatnya suhu pemanasan menghasilkan sifat mekanis yang lebih baik dari komposit logam Al/SiC tersebut, dan ditemukan bahwa kondisi optimum untuk mendapatkan sifat mekanis yang baik adalah pada kondisi waktu tahan 10 jam dan suhu pemanasan 1000°C. Abstract Effect of Firing Temperature and Holding Time on Characterization of Al/SiC Metal Matrix CompositesProduced by Pressureless Infiltration. The production of Al-SiC metal matrix composite can be carried out by pressureless metal infiltration processs (PRIMEX). The experiment was conducted using aluminium AC2B ingot as a matrix and 50%Vf SiC powder as a reinforcement which is mixed with 10% Mg powder for wetting agent. The variables of this experiment are holding time and firing temperature to investigate the effect of these conditions on mechanical properties of Al-SiC metal matrix composites. Holding time was conducted for 2,5,8,10,12 hours and firing temperatures was 750, 800, 900, 1000, 1100°C respectively.. The composites produced are analysed both mechanical properties and metalography such as densities, porosities, hardness, as well as wear rate. The results showed that the longer holding time and increasing firing temperature will increase mechanical properties of Al-SiC metal matrix composites, and it is found that the optimum mechanical properties at 1000°C for 10 hour.

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“…[2] Among various methods for producing the ceramic-metal composites, such as powder metallurgy, stir casting, diffusion bonding, and deposition, [3] the infiltration of molten metals into ceramic preforms containing continuous open porosity is one of the most popular methods. [4] The processes for infiltration can be divided into two categories: (i) pressureless infiltration, [5] where the molten metals or alloys wet the ceramic preforms sufficiently to be spontaneously drawn into the preform, and (ii) pressure infiltration, [6] in which an external pressure is used to actively drive the molten metals or alloys into the preform.…”

Section: Introductionmentioning

confidence: 99%

Current-Activated, Pressure-Assisted Infiltration: A Novel, Versatile Route for Producing Interpenetrating Ceramic–Metal Composites

Kothalkar

O'Neil

et al. 2014

Materials Research Letters

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A novel technique is proposed and demonstrated for processing interpenetrating ceramic-metal composites by the infiltration of molten metals/alloys into ceramic foams utilizing a current-activated, pressure-assisted technique. Ti 2 AlC foams were prepared and used as the infiltration preform. Aluminum alloy 6061 (AA6061) has been infiltrated into the Ti 2 AlC foams, resulting in AA6061/Ti 2 AlC composites. The microstructure, composition, and distribution of phases in the composites were studied. The AA6061/Ti 2 AlC composites were studied under compression testing, and the results were compared with those of the pure components of the composites. Advantages of this method in comparison to other methods for processing metal-ceramic composites are discussed.

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The fabrication of metal matrix composites by a pressureless infiltration technique

Cited by 283 publications

References 11 publications

Effect of Remelting Duration on Microstructure and Properties of SiCp/Al Composite Fabricated by Powder-Thixoforming for Electronic Packaging

Effect of Remelting Duration on Microstructure and Properties of SiCp/Al Composite Fabricated by Powder-Thixoforming for Electronic Packaging

PENGARUH SUHU PEMANASAN DAN WAKTU TAHAN TERHADAP KARAKTERISASI MATERIAL KOMPOSIT LOGAM AL/SiC HASIL INFILTRASI TANPA TEKANAN

Current-Activated, Pressure-Assisted Infiltration: A Novel, Versatile Route for Producing Interpenetrating Ceramic–Metal Composites

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