Wetting improvement of carbon or silicon carbide by aluminium alloys based on a K2ZrF6 surface treatment: application to composite material casting

Rocher, J. P.; Quenisset, J.M.; Naslain, R.

doi:10.1007/bf02385613

Cited by 100 publications

(14 citation statements)

References 5 publications

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“…A recent review reports about Mg 2 Si/Mg, MgO/Mg, TiC/Mg, and (TiB 2 -TiB)/Mg in situ composites synthesized from Mg-Si, Mg-B 2 O 3 , Mg-Ti-C, Mg-KBF 4 -K 2 TiF 6 , and MgO systems, respectively [12]. In order to eliminate the difficulties arising from poor wettability, addition of appropriate alloying elements to the matrix metal [12][13][14][15], surface treatment of reinforcements [16], and elevation of molten matrix temperature [14] have been widely studied. Porosity, which degrades the mechanical properties, is formed adjacent to the agglomerate particles in the MMCs when ceramic particles are transferred to the melt by stirring [16].…”

Section: Introductionmentioning

confidence: 99%

“…In order to eliminate the difficulties arising from poor wettability, addition of appropriate alloying elements to the matrix metal [12][13][14][15], surface treatment of reinforcements [16], and elevation of molten matrix temperature [14] have been widely studied. Porosity, which degrades the mechanical properties, is formed adjacent to the agglomerate particles in the MMCs when ceramic particles are transferred to the melt by stirring [16]. Therefore, in order to overcome the problems arising from poor wettability, novel production method for MMCs is desired.…”

Section: Introductionmentioning

confidence: 99%

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Processing, microstructure and properties of ultrasonically processed in situ MgO–Al2O3–MgAl2O4 dispersed magnesium alloy composites

Bhingole

Chaudhari

Nath

2014

Composites Part A: Applied Science and Manufacturing

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Processing, microstructure and properties of ultrasonically processed in situ MgO–Al2O3–MgAl2O4 dispersed magnesium alloy composites

Bhingole

Chaudhari

Nath

2014

Composites Part A: Applied Science and Manufacturing

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“…But there is still few research about the effect of eutectic silicon particle morphology on the fluidity and wettability of filler metal. Many researches show that the quality of the brazed joint depends on the wettability and liquidity of the filler [10][11]. Wei Dai [12] investigated the Al-Si-Zn-Sr filler metals for brazing 6061 aluminum.…”

Section: Introductionmentioning

confidence: 99%

Effect of Eutectic Silicon Particle Morphology on the Fluidity of 4045 Aluminum Alloy Filler

Han¹,

Chen²,

Zhong³

et al. 2018

dtetr

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Abstract. The present work studies the effect of eutectic silicon particle morphology on the fluidity of 4045 aluminum alloy filler through dynamic spreading experiment, filling test and welding seam experiment. The experimental results indicate that the morphology of eutectic silicon particle has an excellent influence on the melting speed at the initial melting stage of brazing process: the alloy loaded with smaller eutectic silicon particles exhibits a faster melting speed and better fluidity. When the alloy completely melts along with those internal eutectic silicon particles in a variant morphology, particles sizes have limited impact on the fluidity. In addition, it is discovered that alloy introduced with smaller particles possesses a much lower surface activation energy; furthermore, the proportional relationship the ratio of length to diameter (S) and surface activation energy (Q) is verified in this article, and is consistent with the formula: Q=2.35S+94.47.

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“…In previous studies, the surface coating of the reinforcement, 1) high-temperature treatment for the molten alloy, 2,3) and the addition of a third metal element to the molten alloy 4) have been attempted in order to improve the wettability. Unfortunately, these methods require complex process that will raise the cost factor in composites manufacture.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ultrasonic Vibration on Infiltration of Nickel Porous Preform with Molten Aluminum Alloys

et al. 2005

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In order to obtain the high-performance composites with high density, the influence of additional ultrasonic vibration on the infiltration of molten aluminum alloy (ASTM A336.0) into nickel porous preform by low-pressure and pressureless casting was investigated. There was no effect of ultrasonic vibration on infiltration distance under pressureless casting because of presence of surface oxide film on the molten alloy, even when the contact angle is reduced by ultrasonic vibration. However, infiltration distance increases upon applying ultrasonic vibration under low pressure. The infiltration distance appears to increase because of the decrease of the contact angle between the reinforcement and molten alloy upon applying ultrasonic vibration, as well as the reducing effect of oxide film on the surface of the molten alloy under low pressure. The improvement of infiltration by applying ultrasonic vibration under low pressure is applicable to the to infiltration of into nickel porous preform.

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Wetting improvement of carbon or silicon carbide by aluminium alloys based on a K2ZrF6 surface treatment: application to composite material casting

Cited by 100 publications

References 5 publications

Processing, microstructure and properties of ultrasonically processed in situ MgO–Al2O3–MgAl2O4 dispersed magnesium alloy composites

Processing, microstructure and properties of ultrasonically processed in situ MgO–Al2O3–MgAl2O4 dispersed magnesium alloy composites

Effect of Eutectic Silicon Particle Morphology on the Fluidity of 4045 Aluminum Alloy Filler

Effect of Ultrasonic Vibration on Infiltration of Nickel Porous Preform with Molten Aluminum Alloys

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