Interfacial Aspects to Produce Particulate Reinforced Metal Matrix Composites

Kaptay, George

doi:10.1002/9781118787120.ch6

Cited by 7 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the flotation of mineral particles, there is a critical contact angle below which the particle will not float. , The experimental research on the flotation of different processes by Awatey et al shows that, for sphalerite particles with a diameter of 250–850 μm (corresponding Bo = 0.008–0.1), the critical contact angle below which flotation is impossible is no more than 64°, conforming to the results of this study, while theoretical analysis neglecting the liquid surface distortion gave a critical contact angle of 90° …”

Section: Resultssupporting

confidence: 89%

Limit for Small Spheres To Float by Dynamic Analysis

Song

Yao

2018

Langmuir

View full text Add to dashboard Cite

Small spheres released above the liquid surface experience a dynamic process to ultimately float or sink, and thus, their behaviors should be considered by dynamic analysis instead of static equilibrium. This study numerically investigates the motion of small spheres after contacting the liquid surface with zero velocity, and the flotation condition is proposed based on the analyses of acting forces and the sphere's motion. Whether the small spheres float is determined by the density ratio, Bond number, and contact angle. A critical contact angle exists, below which the flotation of small spheres is impossible. The decrease in Bond number and increase in hydrophobicity enlarge the limit density ratio for small spheres to float, while exerting little effect on large spheres. The theoretical formulas of the limit density ratio are obtained based on energy balance and agree well with numerical results. The limit density ratio predicted in consideration of a dynamic process is far less than the maximum density ratio predicted by static equilibrium.

show abstract

Section: Resultssupporting

confidence: 89%

Limit for Small Spheres To Float by Dynamic Analysis

Song

Yao

2018

Langmuir

View full text Add to dashboard Cite

show abstract

“…Garcia-Cordovilla et al experienced incubation time in the infiltrated length -time curves and concluded that the origin of the incubation time is not yet fully understood [19]. Kaptay derived theoretical function for infiltrated length and this one is again parabolic in nature and shows linear dependence on the square root of time [20]. In summary it is hard to tell which approximation is the best or at least satisfying.…”

Section: Resultsmentioning

confidence: 99%

Infiltration Characteristics and Compressive Behaviour of Metal Matrix Syntactic Foams

Orbulov

Ginsztler

Kun

2012

MSF

View full text Add to dashboard Cite

The most promising process for metal matrix syntactic foam (MMSF) production is pressure infiltration. In case if it can be advanced to die casting the cost of the MMSFs will drop significantly. The first step on this road is to characterize the kinetics of the pressure infiltration with respect to infiltration pressure and time. Experimental infiltration equipment was built and many preliminary tests were performed on the AlSi12 + SLG system. The load bearing capacity is also important, therefore the compressive behaviour of MMSFs were investigated. According to the results engineering factors (matrix material, size of the microballoons, applied heat treatment, temperature of the tests) have significant effects on the compressive properties.

show abstract

“…One of the crucial points in the production of casting composites is the introduction of the reinforcing phase into the molten metal. Perfect wettability between reinforcement and the molten metal is required for complete immersion of the reinforcement [55][56][57][58]. If the molten metal does not perfectly wet the reinforcement phase, the composite can only be produced by prolonged stirring [59].…”

Section: Role Of the Wettability Of The Reinforcement By Molten Metalmentioning

confidence: 99%

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Baumli

2020

Metals

View full text Add to dashboard Cite

The paper reviews the preparation of the different metallic nanocomposites. In the preparation of composites, especially in the case of nanocomposites, interfacial phenomena play an important role. This review summarizes the literature on various interfacial phenomena, such as wettability and reactivity in the case of casting techniques and colloidal behavior in the case of electrochemical and electroless methods. The main contribution of this work lies in the evaluation of collected interfacial phenomena and difficulties in the production of metal matrix composites, for both nano-sized and micro-sized reinforcements. This study can guide the composite maker in choosing the best criteria for producing metal matrix composites, which means a real interface with good adhesion between the matrix and the reinforcement. This criterion results in desirable mechanical and physical properties and homogenous dispersion of the reinforcement in the matrix.

show abstract

Interfacial Aspects to Produce Particulate Reinforced Metal Matrix Composites

Cited by 7 publications

References 41 publications

Limit for Small Spheres To Float by Dynamic Analysis

Limit for Small Spheres To Float by Dynamic Analysis

Infiltration Characteristics and Compressive Behaviour of Metal Matrix Syntactic Foams

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Contact Info

Product

Resources

About