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Your search for composites resulted in 23 matches...

TECHNOLOGICAL ASPECTS OF THE SYNTHESIS OF METAL MATRIX COMPOSITES REINFORCED WITH CENOSPHERES


The paper presents a method of casting metal matrix composite materials based on light alloys reinforced with cenospheres. The cenospheres, which are product of fly ash processing by flotation, were formed into the...

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FLY ASH AS A COMPONENT OF THE REINFORCEMENT OF LIGHT ALLOY METAL MATRIX COMPOSITES. PART 1. COAL COMBUSTION BY-PRODUCTS MANAGEMENT


The first part of the publication presents the structure of global power industry market. Fundamental technologies of heat and electricity production in conventional coal combustion processes are considered,with sp...

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STUDIES OF THEORETICAL AND PRACTICAL ASPECTS OF THE DESIGN OF MATERIALS LIGHTER THAN AIR


This paper discusses some theoretical aspects of the design of ultralight materials. Potential application of syntactic foams in the fabrication of composites lighter than air is also analyzed. Carbon allotropic fo...

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ALFA COMPOSITES FABRICATED BY MECHANICAL ALLOYING - ANALYSIS OF THE REINFORCING PHASE DISTRIBUTION BY COMPUTED MICROTOMOGRAPHY


The paper presents the results of examinations of composite samples in which the reinforcement is waste fly ash from power plants, while matrix is an aluminium (A8). The agglomerates of master composite obtained by...

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TRIALS TO FABRICATE BY MECHANOSYNTHESIS A CuXAlY – BASED COMPOSITE REINFORCED WITH Al2O3 PARTICLES


The study describes the attempts to use a mechanochemical synthesis in the fabrication of composites based on Cu-Al intermetallic compounds reinforced with homogeneously distributed ceramic Al2O3...

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RECYCLING OF WASTE FLY ASH FORMED DURING COMBUSTION OF HARD COAL FOR USE IN MOULDING MIXTURES MANUFACTURE


The article is a compilation of the most important results obtained during execution of own research project regarding the possibility of using fly ash formed during combustion of hard coal as a base granular material ...

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EVALUATING THE FEASIBILITY OF MAKING ALUMINIUM ALLOY NANOMODIFIERS BY THE METHOD OF MECHANICAL ALLOYING


Nanomaterials extend the range of their application in human activities. The past few years have faced a considerable increase of interest in various aspects of the application of nanotechnology in liquid phase met...

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Fly ash as the reinforcement of light alloy metal matrix composites. Part 2: High temperature investigations


The second part of the publication presents the results of high temperature investigations of selected sorts of fly ash serving as a reinforcement in ALFA composites. Using graphs illustrating changes of sample dimensions in function of temperatur...

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SELECTED THERMOPHYSICAL PROPERTIES OF ALUMINUM MATRIX COMPOSITES SUBJECTED TO MULTIPLE REMELTING


This article presents the results of research on selected thermophysical properties of the commercial F3S.10S, F3S.20S, F3S.30S metal matrix composites (MMCs) based on the Al359 alloy matrix reinforced with SiC particles added in an amount of 10 v...

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ON THE DAMPING CAPACITY OF COMPOSITE MATERIALS


The study adresses the problem of the damping capacity of metal matrix composites based on A359 alloy reinforced with 10%, 20% and 30% SiCp, subjected to multiple remelting. The aim of the research was to prove that the recycling proces...

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AN INNOVATIVE METHOD FOR THE FABRICATION OF COMPOSITE RODS REINFORCED WITH WASTE MATERIALS


The paper presents the results of examinations of composite samples in which the reinforcement is waste fly ash from power plants, while matrix is aluminum (99,98 wt.%). The agglomerates of master composite obtained by mechanical alloying were sub...

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CAST Al-Si MATRIX COMPOSITES REINFORCED WITH INTERMETALLIC PHASES


In the present paper research results of microstructure and selected mechanical properties of composite on EN AC-AlSi11 alloy matrix with reinforcement in the form of particle of Cr-Fe-C alloy (composite ex situ) and carbonitrides Ti, Zr, V (compo...

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EFFECT OF SUBSTRATE OXIDATION OF NICKEL ON WETTING BEHAVIOUR IN INDUSTRIAL ALLOY 226D/Ni SYSTEM


The aim of this study was to determine the impact of technological factors (surface treatment and contact time) on the kinetics of wetting of nickel substrates by a liquid aluminum alloy. Wetting kinetics studies were carried out in vacuum at 700&...

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Thermophysical properties of Ag-C composites doped with carbon nanotubes


The paper presents results of preliminary studies on Ag-C materials obtained using the powder metallurgy (PM) method with carbon nanotube doping. Based on structural tests performed using scanning electron microscopy a...

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Fly ash as a reinforcement of light metal matrix composites. Part 3. The influence of a chemical composition on characteristic fusibility temperatures of coal fly ashes


Temperature properties of fly ash are closely correlated to the chemical composition and proportions of the main compounds, comprising the waste material. Statistical analysis of data obtained during the measurement of fusibility, showed a high co...

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Structural determinants of the mechanical properties of A359 + Al2O3 composites after multiple remelting


The article discusses the possibilities of applying direct multiple remelting as an easy as well as substantially and economically justified method of recycling composites with an A359 alloy matrix reinforced with Al2O3 parti...

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Thermophysical properties of Cu-C composites obtained by powder metallurgy


Studies of composite materials of the Cu-C type with additives of different forms of carbon (carbon nanopowder, carbon nanotubes and reduced graphene oxide) were performed by the powder metallurgy method. Based on the structural tests conducted by...

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Thermal conductivity of carbon-reinforced metal-matrix composites


The paper presents a critical analysis of the current state-of-the-art thermo-physical properties of metal composite materials, in which different types of carbon reinforcing phase have been used: graphite, diamond, carbon fibres, carbon nanotubes...

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Stability of metal-ceramic slurry after multiple re-melting of A359 aluminum alloy based composite reinforced with Al2O3 particles


The sessile drop method was adopted to investigate the effect of multiple re-melting and casting of metal matrix composite on the structural stability of metal-ceramic slurry. Commercial aluminum matrix composite made of the A359Al alloy reinforce...

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Mechanical properties of Si3N4 – graphene composites sintered by SPS method


Silicon nitride powder with a small addition of magnesium oxide and yttria stabilized tetragonal zirconia fine particles was used as a starting material. Multilayer graphene nanoplatelets were used as filler for silicon nitride based composites. G...

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Investigation of mechanical properties and coefficients of sound insulation of innovative silicone composite material


A new non-combustible, non-flammable, waterproof, long-lasting, heat-insulating composite material was made of glass foam granules (derived from glass waste) and a hydraulic inorganic binder in the form of a white Portland cement solution (CE...

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Investigation of the interaction between the CuZn38Pb2 matrix and the Fe reinforcement phase during the production of the complex relief MMCs


The present paper is relevant to the investigation of the interaction between the copper alloy metal matrix (CuZn38Pb2) and the reinforcement phase (Fe) during the production of "hybrid" complex relief MMCs. An innovative production method is used...

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High temperature wettability and reactivity between molten Mg in contact with Ni substrate


The paper focuses on the experimental investigation of high temperature wetting behaviour of liquid pure Mg during a contact heating on Ni substrate by the sessile drop method. High temperature wettability test was performed by the ...

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