Pressure infiltration technique for synthesis of aluminum–fly ash particulate composite

Rohatgi, Pradeep K.; Guo, Rui‐Fen; Iksan, H.; Borchelt, E.J; Asthana, R.

doi:10.1016/s0921-5093(97)00822-8

Cited by 133 publications

(68 citation statements)

References 16 publications

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“…They also have a strong influence during the production of the syntactic foams. The foams are usually produced by mixing techniques and gravitational casting or by pressure infiltration [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Application of Computed Tomography in Structure Analyses of Metal Matrix Syntactic Foams

Kozma¹,

Zsoldos²,

Dorogi³

et al. 2015

IJCTE

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Abstract-In order to create 3D models used in finite element analysis, a reconstruction of the structure of metal foam composites reinforced with ceramic spherical shells is necessary. A new algorithm has been developed for reconstruction. The input of the algorithm consists of CT layer images which were created at the Szechenyi Istvan University, Györ, Hungary. The CT images were analyzed by the new algorithm. The algorithm seeks the contours of the spherical shells by gradually increasing the radii, also in CT images. A suitably accurate 3D CAD model can be created with algorithm.

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Section: Introductionmentioning

confidence: 99%

Application of Computed Tomography in Structure Analyses of Metal Matrix Syntactic Foams

Kozma¹,

Zsoldos²,

Dorogi³

et al. 2015

IJCTE

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Section: Introductionmentioning

confidence: 99%

“…And they have also strong influence during the production of the syntactic foams. The foams are usually produced by mixing technique and gravitational casting or by pressure infiltration [11][12][13].Because of the strong effect of the quality of the microspheres (diameter of ~ 0.1-3 mm) on the mechanical and other properties of the foams the investigation of the structure of the syntactic foams is very important. In order to create real 3D models from the syntactic foams the CT-based reconstruction methods can be applicable.…”

mentioning

confidence: 99%

Computer tomography based reconstruction of metal matrix syntactic foams

Kozma¹,

Zsoldos

Dorogi³

et al. 2014

Period. Polytech. Mech. Eng.

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In order to create 3D (three-dimensional) Keywords syntactic foam · CT based reconstruction IntroductionThe metallic foams have a special class which satisfies the definition of particle reinforced metal matrix composites also. These are the metal matrix syntactic foams. The metal matrix syntactic foams have numerous perspective applications as covers, hulls, castings, or in automotive and electromechanical industry sectors because of their high energy absorbing and damping capability. In these porous materials the porosity is ensured by incorporating ceramic hollow microspheres [1]. The microspheres are commercially available and they contain mainly various oxide ceramics [2,3].The most important properties of the metal matrix syntactic foams are the compressive strength and the absorbed energy [4][5][6][7][8][9][10].The quality and chemical composition of the microspheres influence many properties of the syntactic foams. And they have also strong influence during the production of the syntactic foams. The foams are usually produced by mixing technique and gravitational casting or by pressure infiltration [11][12][13].Because of the strong effect of the quality of the microspheres (diameter of ~ 0.1-3 mm) on the mechanical and other properties of the foams the investigation of the structure of the syntactic foams is very important. In order to create real 3D models from the syntactic foams the CT-based reconstruction methods can be applicable. CT-based reconstruction methods are used successfully in many different materials research fields as for example porous polymeric materials (foams) [14], open celled and closed-cell metallic foams [15][16]. Recently the X-ray computed microtomography has been applied on porous fuel cell materials [17] and soil samples [18]. The history, the production, the geometrical, mechanical, thermal properties the dynamical behaviour and the fatigue processes of hollow spheres were studied in details [19].Structural characterisation and morphology of metal foams were studied with models reconstructed from CT images [20]. In order to apply the CT-images for the reconstruction of the syntactic foams a new algorithm is shown in this work.

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“…Studies that utilize epoxy resin as the matrix can be found in several works [22][23] and these studies put more focuses on the use of glass hollow microspheres as the dispersed phase [22]. Besides that, most published studies also used and investigated various processing techniques in the production of syntactic foams [24][25][26][27][28][29][30]. Some of the literatures described the technique in detail [31,32] and some patented their manufacturing techniques such done by Kim [33] and Meteer and Philipps [34].…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of epoxy syntactic foam filled with epoxy hollow spheres

Samsudin¹,

Ariff²,

Zakaria³

et al. 2011

Express Polym. Lett.

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Abstract. The present study focuses on the development and characterization of epoxy syntactic foam filled with epoxy hollow spheres (ESF/EHoS). The epoxy syntactic foam (ESF) was produced by embedding epoxy hollow spheres (EHoS) into a mixture of epoxy-hardener and 3% KOH solution. An innovative approach and simple procedure was implemented in the preparation of the EHoS where expanded polystyrene (EPS) beads were used as initiation material. The EPS beads were coated with the epoxy resin and these coated EPS beads were later cured and post-cured at high temperature which will also shrink the EPS beads thus producing a hollow structure. The physical and compressive properties of the developed ESF were characterized. The progressive collapse of the syntactic foam was monitored in real-time with respect to percentage of strain during a compression test. Results also indicated that the (ESF/EHoS) showed similar deformation pattern with other types of syntactic foams which exhibited the common three regions of deformations.

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Pressure infiltration technique for synthesis of aluminum–fly ash particulate composite

Cited by 133 publications

References 16 publications

Application of Computed Tomography in Structure Analyses of Metal Matrix Syntactic Foams

Application of Computed Tomography in Structure Analyses of Metal Matrix Syntactic Foams

Computer tomography based reconstruction of metal matrix syntactic foams

Development and characterization of epoxy syntactic foam filled with epoxy hollow spheres

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