Microstructures and properties of interpenetrating alumina/aluminium composites made by reaction of SiO2 glass preforms with molten aluminium

Preparation and properties of NiAl(Si)/Al2O3 co-continuous composites obtained by reactive metal penetration

“…The C 4 composites present low density (around 3.5 g/cm 3 ), low porosity (less than 2%) and good mechanical properties: Young's modulus over 200 GPa, flexural strength between 280 and 470 MPa, Vickers hardness between 450 and 620 [8,9,20,25]; however a low melting point at 570°C is observed, due to the Al-Si eutectic.…”

“…Infiltration of silica with aluminium in order to obtain a C 4 composite has been widely studied in literature, and a complete description of the process is proposed in [8,9,20]. The C 4 composites present low density (around 3.5 g/cm 3 ), low porosity (less than 2%) and good mechanical properties: Young's modulus over 200 GPa, flexural strength between 280 and 470 MPa, Vickers hardness between 450 and 620 [8,9,20,25]; however a low melting point at 570°C is observed, due to the Al-Si eutectic.…”

“…Metal-ceramic composites with two interpenetrating continuous networks can be obtained by several techniques, in particular by standard infiltration over porous preforms, with [1][2] or without [3] pressure, by hot pressing [4][5][6] or by reactive infiltration over dense preforms, known as reactive metal penetration (RMP) [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Microstructural Modeling of Ni-Al2O3Composites Using Object-Oriented Finite-Element Method

“…In IPCs, both the phases span throughout the microstructure and from 3D networks interpenetrating each other [1]. Many researchers have reported the processing and physical properties of metal/ceramic IPCs [2][3][4][5][6]. Ceramic-metal composites have great potential in various technological fields due to their improved thermal, mechanical and electrical properties.…”

Analysis of the elastic properties of an interpenetrating AlSi12–Al2O3 composite using ultrasound phase spectroscopy

“…Hence, much recent work has focussed on the development and analysis of interpenetrating metal matrix composites. These include MMCs fabricated by reaction synthesis [4,5,6], by melt infiltration in wood ceramics [7], in 3-D periodic preforms produced by robotic deposition [8], in porous ceramic preforms fabricated by freeze-casting [9,10].…”