Ceramic Foam/Aluminium Alloy Interpenetrating Composites for Wear Resistance Applications

Liu, J.; Binner, Jon; Higginson, R.L.; Munnings, Christopher

doi:10.1002/9781118095355.ch24

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…Observation of several SEM images reveals that the TI2AlC foams produced with the gelcasting method are comprised, typically, by nearly spherical cells connected by circular windows [30]. In the current approach, the pore windows are simulated as circular cutouts on the spherical cells.…”

Section: Generation Of the Micro-voidsmentioning

confidence: 99%

Three-Dimensional Digital Reconstruction of Ti2AlC Ceramic Foams Produced by the Gelcast Method

2019

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A digital reconstruction technique is presented that generates three-dimensional (3D) digital representations of ceramic foams created by the foam-gelcasting technique. The reconstruction process uses information that is directly extracted from Scanning Electron Microscopy (SEM) images and offers a 3D representation of the physical sample accounting for the typically large pore cavities and interconnecting windows that are formed during the preparation process. Contrary to typical tessellation-based foam treatments, a spherical representation of the pores and the pore windows of the foams is assumed and a novel hybrid algorithm that combines a variation of Lubachevsky-type and Random Close Packing of Hard Spheres (RCPHS) algorithms has been developed to obtain near-optimum solutions to the packing problem of the spheres that represent the pores. Numerical simulations are performed directly on the 3D reconstructed foams to determine their gas permeability. The model predictions are compared with experimental gas permeability data that were obtained for the physical samples. The pore wall thickness can be treated as the single fitting parameter in the entire reconstruction process, although it is shown that images of sufficient resolution could eliminate the need even for that. The foams that are produced by this method yield quantitatively similar pressure drops with experiments for various superficial velocity values, with a very small deviation in the range of 1.7–2.8%. The proposed methodology could be utilized for the prediction of the permeability and transport properties of complex foamy porous structures, similar to the gelcast-type of foams, from a single SEM image of the foam sample without resorting to serial tomography or other structural information, thus saving considerable time and effort from experimental work.

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Section: Generation Of the Micro-voidsmentioning

confidence: 99%

Three-Dimensional Digital Reconstruction of Ti2AlC Ceramic Foams Produced by the Gelcast Method

2019

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“…Ceramic foams with unique three‐dimensional (3D) network and outstanding mechanical and anti‐erosive properties are excellent reinforcements in composite materials . The interpenetrated 3D structure of the ceramic foam reinforcement may greatly enhance the mechanical and physical performance of the composites, leading to the potential applications in various engineering fields.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and slurry erosion resistance of a hybrid composite SiC foam/SiC particles/EP

Ren

Zheng²,

Jiang

et al. 2018

Polymer Composites

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A novel hybrid composite SiC foam/SiC particles/EP (denoted as SiC foam /SiC p /EP), consisting of E-51 epoxy resin as the matrix, SiC foam and SiC particles as the reinforcements, was prepared in this work. The slurry erosion properties of SiC foam /SiC p /EP composite and SiC foam /EP (SiC foam/epoxy resin) composite were investigated by using a rotating disc rig. It was found out that SiC foam /SiC p /EP exhibited better mechanical and anti-erosive performance as compared with SiCfoam /EP. SiC particle size had great influence on the mechanical and anti-erosive properties of the hybrid composites. Smaller SiC particles were beneficial to improve the mechanical strength, but inclined to decrease the anti-erosive performance of the composite. In general, the hybrid composite SiC foam /SiC p /EP can be applied potentially with the excellent antierosive performance under the solid particle erosion conditions.

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Ceramic Foam/Aluminium Alloy Interpenetrating Composites for Wear Resistance Applications

Cited by 2 publications

References 21 publications

Three-Dimensional Digital Reconstruction of Ti2AlC Ceramic Foams Produced by the Gelcast Method

Three-Dimensional Digital Reconstruction of Ti2AlC Ceramic Foams Produced by the Gelcast Method

Mechanical properties and slurry erosion resistance of a hybrid composite SiC foam/SiC particles/EP

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