On the compressive behaviour of high porosity expanded Perlite-Metal Syntactic Foam (P-MSF)

Broxtermann, S.; Taherishargh, M.; Belova, Irina V.; Murch, Graeme E.; Fiedler, Thomas

doi:10.1016/j.jallcom.2016.08.284

Cited by 53 publications

(49 citation statements)

References 30 publications

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“…Besides these, Fe, [23][24][25][26][27][28] Zn, [29][30][31] and Ti [32][33][34] based variations have been produced and reported in the literature. [55][56][57] To decrease this drawback, MMSFs with cheaper filler material, namely expanded perlite [58][59][60][61][62][63][64][65][66][67][68] and pumice [69] were developed. [35] The filler material (or reinforcement in the composite technologist point of view) is usually built up from oxide ceramics or from iron based metals (steels).…”

Section: Introductionmentioning

confidence: 99%

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Orbulov¹,

Szlancsik²

2018

Adv Eng Mater

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Metal matrix syntactic foams (MMSFs, often referred as composite metal foams (CMFs)) are lightweight materials with high specific strength. MMSFs are on the borderline between metal matrix composites and metal foams. On one hand MMSFs are composites, because they are filled by hollow particles and the particles may add strength to the material. On the other hand, they are foams, because the hollow particles ensure porosity to the material. Among metallic foams, MMSFs exhibit outstanding specific mechanical properties due to the hollow inclusions that are typically made from ceramics or high strength alloys, therefore they can be applied as structural materials. The goal of this paper is to summarize the available data on the mechanical properties of MMSFs with aluminum matrix in order to give a strong support to the design engineers. Since the foams are most frequently loaded in compression, the main part of this paper is organized around the available standard related to the compressive properties of porous materials and metallic foams. The quasi-static results are complemented by properties measured at higher strain rates. Besides this, some insight into the basic fatigue properties as well as into the toughness of MMSFs is also provided.

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Section: Introductionmentioning

confidence: 99%

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Orbulov¹,

Szlancsik²

2018

Adv Eng Mater

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“…A mold is fulfilled with these particles; some studies apply a gently tapped over the mold in order to reach denser packing [2]. Alternatively, the mold can be filled in equally sized batches and vibration instigated between them [23]. Then, two meshes are placed at the top and at the bottom of the mold.…”

Section: Counter-gravity Pressure Infiltration Mechanically Assisted mentioning

confidence: 99%

“…The mold is placed upside-down on the top of the block of metal alloy and the assembly is located into an isolating chamber [2]. To prevent any oxidation of metal matrix, assembling components and fillers, the chamber can be subjected to a vacuum (10 −4 MPa) followed by purging with controlled atmosphere of inert gas (Argon [2,23,40]). The chamber with the assembly inside (depicted in Figure 2) is heating from room temperature until or above the melting point of matrix metal is reached and held at this temperature during a period for homogenization (usually 20-30 min) [4,45,94].…”

Section: Counter-gravity Pressure Infiltration Mechanically Assisted mentioning

confidence: 99%

“…During the infiltration, ventilation holes allow the excitation of gases and excesses of molten metal [41]. When infiltration is complete, solidification can be supported artificially by means of a cooling down device until room temperature is achieved [23] or left cooling down under atmospheric conditions [93] and the MMSF is removed from the mold. Subsequently, MMSF can be subjected to a thermal treatment that stabilizes its mechanical properties through heat treatments, solution treatments or/and aging treatments [95].…”

Section: Counter-gravity Pressure Infiltration Mechanically Assisted mentioning

confidence: 99%

“…Although a gradient on properties may seem like a manufacturing defect, this opens the possibility to synthesize alternative foams called functionally graded syntactic foams (FGSF). Broxtermann et al [23] reported that through double step compaction of filler materials, gradient effects can be avoided while the energy absorption efficiency of SF is increased. In addition, it was also determined that an adequate setting of steps and pressure of pre-compaction enables an increase in packaging of up to 78 vol % (overcoming the maximum packaging limit 74 vol % FCC) and MMSF density can be reduced by up to 0.72 g/cm 3 .…”

Section: Counter-gravity Pressure Infiltration Mechanically Assisted mentioning

confidence: 99%

See 2 more Smart Citations

Molten Metal Infiltration Methods to Process Metal Matrix Syntactic Foams

S-de-la-Muela

Cambronero

Ruiz‐Román

2020

Metals

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Metal matrix syntactic foams (MMSF) are foam composites obtained by filling hollow and/or porous particles into a metal matrix. MMSF are promising materials in defense, aerospace, automotive, marine and engineering applications. Mechanical and physical properties of MMSF can be tailored to reach better structural and/or functional behaviors by fitting processing and tailoring parameters. Some of these parameters are: reinforcement size, volume fraction, distribution of reinforcements and chemical composition. Three techniques are available to manufacture MMSF: Stir casting/vortex method (SC), powder metallurgy (P/M) and infiltration routes. Infiltration process is by far the main employed for making MMSF, it allows a large range of reinforcement (30 vol % to 78 vol %) and offers great advantages compared to other techniques. This paper reviews infiltration routes used to date, their advantages and drawbacks, the main processing parameters of each route, and a relation of representative studies developed to date on the synthesizing of MMSF by molten infiltration processes.

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Fabrication and Mechanical Performance of Glass Fiber Reinforced, Three‐phase, Epoxy Syntactic Foam

Jiang

Wang

et al. 2022

ChemistrySelect

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In the selection of materials for deep‐sea equipment, light weight and high strength are the most important criteria or requirements. In this paper, hollow glass microspheres (HGMS), expanded polystyrene (EPS), epoxy resin (EP) and curing agent were mixed to prepare hollow glass microspheres reinforced epoxy foam balls (HGMS‐EHS) by the rolling ball method. Glass fiber (GF) reinforced epoxy syntactic foam (GF‐ESF) was prepared by mixing HGMS‐EHS, HGMS, EP, GF, and curing agent using compression moulding method. By analyzing the mechanical properties and microscopic morphology of GF‐ESF, the results show that the addition of GF does enhance the compressive strength of epoxy syntactic foam. GF‐ESF has a density of 496 kg/m3, and its compressive strength is 30.48 MPa. By increasing the number of layers of HGMS‐EHS, the diameter of EPS, the density of HGMS and reducing the stacking volume of HGMS‐EHS, the density of ESF increased significantly thus subsequently increase the compressive strength. Therefore, the compressive strength and density should be considered comprehensively and find the best balance point in the process of preparing ESF. This paper could provide some suggestions for the preparation of deep‐sea epoxy composites.

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On the compressive behaviour of high porosity expanded Perlite-Metal Syntactic Foam (P-MSF)

Cited by 53 publications

References 30 publications

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

On the Mechanical Properties of Aluminum Matrix Syntactic Foams

Molten Metal Infiltration Methods to Process Metal Matrix Syntactic Foams

Fabrication and Mechanical Performance of Glass Fiber Reinforced, Three‐phase, Epoxy Syntactic Foam

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