Syntactic foam
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Architected cellular ceramics with tailored stiffness via direct foam writing Open
Significance Direct foam writing enables the construction of architected cellular ceramics with tailored microstructure, geometry, and mechanical properties. These bioinspired, hierarchical structures exhibit different modes of deformation…
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Circular Reprocessing of Thermoset Polyurethane Foams Open
Thermoset polyurethane (PU) foams are widely used in industrial applications, but they cannot be recycled by conventional melt reprocessing because of their cross‐linked structures. The introduction of carbamate exchange catalysts converts…
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Compressive mechanical properties of low-cost, aluminium matrix syntactic foams Open
Metal matrix syntactic foams (MMSFs) are high-performance foams consisting of a light-weight matrix and a set of porous fillers. The obstacle against the wide-spreading of MMSFs is their high cost (raised by the fillers' price). In this st…
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Functionally graded metal syntactic foam: Fabrication and mechanical properties Open
In this research study a novel functionally graded metal syntactic foam (FG-MSF) was manufactured using expanded perlite and activated carbon particles. A tailored arrangement of these fillers was infiltrated with ZA27 alloy in a single-st…
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Effects of Different Lightweight Functional Fillers for Use in Cementitious Composites Open
The effects of different lightweight functional fillers on the properties of cement-based composites are investigated in this study. The fillers include fly ash cenospheres (FACs) and glass micro-spheres (GMS15 and GMS38) in various propor…
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Rational design of high‐performance epoxy/expandable microsphere foam with outstanding mechanical, thermal, and dielectric properties Open
Previous studies on epoxy foams were subjected to the specific property, and improvements in thermal insulation or dielectric property were usually accompanied by the sacrifice of mechanical strength or thermal stability. The current resea…
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Compression properties of polymeric syntactic foam composites under cyclic loading Open
In the present work, polymer-based syntactic foams were studied under cyclic compression in order to investigate their compressibility, recoverability, energy dissipation and damage tolerance. These syntactic foams were manufactured by add…
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3D Printed Silicones with Shape Memory Open
Direct ink writing enables the layer-by-layer manufacture of ordered, porous structures whose mechanical behavior is driven by architecture and material properties. Here, we incorporate two different gas filled microsphere pore formers to …
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Enhancing the Ignition, Hardness and Compressive Response of Magnesium by Reinforcing with Hollow Glass Microballoons Open
Magnesium (Mg)/glass microballoons (GMB) metal matrix syntactic foams (1.47–1.67 g/cc) were synthesized using a disintegrated melt deposition (DMD) processing route. Such syntactic foams are of great interest to the scientific community as…
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Compressive Behavior and Microstructural Characteristics of Iron Hollow Sphere Filled Aluminum Matrix Syntactic Foams Open
Iron hollow sphere filled aluminum matrix syntactic foams (AMSFs) were produced by low pressure, inert gas assisted infiltration. The microstructure of the produced AMSFs was investigated by light and electron microscopy, extended by energ…
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Comparative performance of composite sandwich panels and non-composite panels under blast loading Open
The performance of non-composite panels built of steel plates, concrete slabs, and composite sandwich panels in blast response reduction is examined and compared in the present study. The dynamic response of steel stiffened and unstiffened…
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3D printing of syntactic foam cored sandwich composite Open
In additive manufacturing, fused filament fabrication (FFF) based three-dimensional printing (3DP) is one of the most popular rapid processing technologies. The key benefit of 3DP is the ability to build integrated, complex, and tailored c…
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Effect of Heat Treatment on the Compressive Behavior of Zinc Alloy ZA27 Syntactic Foam Open
Zinc alloy (ZA27) syntactic foams (SF) were manufactured using expanded perlite (EP) particles and counter-gravity infiltration casting. Due to a variation of the metallic matrix content, the density of the produced foam samples varied fro…
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Investigation of the Thermal Conductivity of Resin-Based Lightweight Composites Filled with Hollow Glass Microspheres Open
The design and development of thermal insulation materials is very important for the treatment of offshore oil pipelines. Understanding thermal energy transport in thermal insulation materials and predicting their thermal conductivities ha…
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Structure and Compressive Properties of Invar-Cenosphere Syntactic Foams Open
The present study investigates the mechanical performance of syntactic foams produced by means of the metal powder injection molding process having an Invar (FeNi36) matrix and including cenospheres as hollow particles at weight fractions …
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Effect of Fly-Ash Cenospheres on Properties of Clay-Ceramic Syntactic Foams Open
A low-density clay ceramic syntactic foam (CSF) composite material was successfully synthesized from illitic clay added by fly ash cenospheres (CS) using the semi-dry formation method. The content of CS varied in the range of 10, 30, 50 an…
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Data characterizing tensile behavior of cenosphere/HDPE syntactic foam Open
The data set presented is related to the tensile behavior of cenosphere reinforced high density polyethylene syntactic foam composites "Processing of cenosphere/HDPE syntactic foams using an industrial scale polymer injection molding machi…
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Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams Open
The coating of hollow alumino-silicate microspheres or cenospheres with thin layers of Cu by means of vibration-assisted magnetron sputtering yields a starting material with considerable potential for the production of new types of metal m…
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Functionally-Graded Metallic Syntactic Foams Produced via Particle Pre-Compaction Open
This paper introduces a novel functionally graded metallic syntactic foam. The investigated foams are manufactured while using infiltration casting where molten A356 aluminum flows into the interstitial voids of packed expanded perlite (EP…
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Processing of Hollow Glass Microspheres (HGM) filled Epoxy Syntactic Foam Composites with improved Structural Characteristics Open
The objective of this work is to improve the structural characteristics of hollow glass microsphere (HGM) filled epoxy syntactic foam composites with little voids content and improved HGM dispersion in the composite. A modified degassing t…
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Dynamic impact behavior of syntactic foam core sandwich composites Open
Sandwich composites and syntactic foams independently have been used in many engineering applications. However, there has been minimal effort towards taking advantage of the weight saving ability of syntactic foams in the cores of sandwich…
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Mechanical and Microstructural Characterization of an AZ91–Activated Carbon Syntactic Foam Open
In this study, activated carbon (AC) particles were combined with AZ91 alloy to manufacture a magnesium syntactic foam. This novel lightweight foam has a very low density, in the range of 1.12–1.18 gcm−3. The results show that no chemical …
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Synthesis and Quasi-Static Compressive Properties of Mg-AZ91D-Al2O3 Syntactic Foams Open
Magnesium alloys have considerably lower density than the aluminum alloy matrices that are typically used in syntactic foams, allowing for greater specific energy absorption. Despite the potential advantages, few studies have reported the …
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On the Filler Materials of Metal Matrix Syntactic Foams Open
Metal matrix syntactic foams (MMSFs) are becoming increasingly relevant from the lightweight structural materials point of view. They are also used as energy absorbers and as core materials for sandwich structures. The mechanical propertie…
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The Processing and Properties of Syntactic Al Foams Containing Low Cost Expanded Glass Particles Open
Expanded glass particles (EGP) are used to manufacture Al syntactic foams using a simple vacuum casting method. Clamping of the casting in the stainless steel mold is observed when preheating the mold to >400 C, causing damage to the EGP, …
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Characteristic compressive properties of AlSi7Mg matrix syntactic foams reinforced by Al2O3 or SiC particles in the matrix Open
Metal matrix syntactic foams (MMSFs) were produced by liquid-state low-pressure infiltration. AlSi7Mg alloy was applied as matrix material, while the filler was a set of ceramic hollow spheres (CHSs) or light expanded clay agglomerate part…
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Compressive properties of metal matrix syntactic foams in uni- and triaxial compression Open
Metal matrix syntactic foams (MMSFs) with Al alloy matrix (Al99.5 and AlSi12) and pure Fe metallic hollow spheres (MHSs, 64 vol%) were produced by pressure infiltration process. The density of the produced MMSFs was between 1.18 and 1.54 g…
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On the Way to Real Applications: Aluminum Matrix Syntactic Foams Open
In recent times, aluminum matrix syntactic foams (AMSFs) have become considerably attractive for many industries such as automotive, aviation, aerospace and composite sector due to their features of low density, good compression strength, …
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Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology Open
Functional core-shell-structured particles have attracted considerable attention recently. This paper reviews the synthetic methods and morphologies of various electro-stimuli responsive polyaniline (PANI)-coated core-shell-type microspher…
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Controlled Shrinkage of Expanded Glass Particles in Metal Syntactic Foams Open
Metal matrix syntactic foams have been fabricated via counter-gravity infiltration of a packed bed of recycled expanded glass particles (EG) with A356 aluminum alloy. Particle shrinkage was studied and has been utilized to increase the par…