Manufacturing and Properties of Quartz (SiO2) Particulate Reinforced Al-11.8%Si Matrix Composites

Effects of solid lubricants, load, and sliding speed on the tribological behavior of silica reinforced composites using design of experiments

“…In contrast, carbides react with matrix materials and dissociate at elevated temperature resulting in poor interface bonding quality [21,22,23]. Most of the studies on silica reinforced MMCs are based on mechanical properties evaluation [20,24,25,26]. There are relatively very few wear studies on the silica reinforced MMCs.…”

“…It has near zero thermal expansion (0.55 x 10 -6 / o C) and lower density (2.1 g/cc) than other reinforcements [19]. It has got excellent corrosion, chemical and thermal shock resistance [20]. It is stable in the metallic matrix especially in copper and does not react with the matrix during sintering.…”

Mechanical Strength and Corrosion Rate of Aluminium Composites (Al/SiO2): Nanoparticle Silica (NPS) as Reinforcement

“…These trends accord well with another report introducing nano-sized SiO 2 into the Al matrix, which would enhance the modulus of elasticity up to about 14 Gpa. 7 Meanwhile, for micron-sized SiO 2 , reinforcement may give only around 0.240 Gpa. 11 Our present study exhibited that the maximum modulus of elasticity attained was 61.28 GPa and 62.43 GPa respectively for Al/SiO 2 (B) and Al/SiO 2 (T) samples with 5% SiO 2 .…”

“…3,4 Latest studies reveal that SiO 2 has become a potential reinforcement in aluminiumbased MMCs due to its prospective applications for automotive, defence, chemical, and oil and natural gas industries. [6][7][8][9] Selecting SiO 2 as the reinforcement in aluminium-based MMCs improves their impact strength, hardness, porosity, wear and corrosion resistance, but reduces the ductility, toughness, tensile strength, elastic modulus and thermal conductivity. [6][7][10][11][12][13][14] Concerning corrosion resistant property, a potentiodynamic polarisation system has been used to investigate corrosion characteristics of Al and its alloys, Al/SiC p (6061Al-SiC) and Al-fly ash.…”

“…[6][7][8][9] Selecting SiO 2 as the reinforcement in aluminium-based MMCs improves their impact strength, hardness, porosity, wear and corrosion resistance, but reduces the ductility, toughness, tensile strength, elastic modulus and thermal conductivity. [6][7][10][11][12][13][14] Concerning corrosion resistant property, a potentiodynamic polarisation system has been used to investigate corrosion characteristics of Al and its alloys, Al/SiC p (6061Al-SiC) and Al-fly ash. 15,[17][18][19] Their corrosion rate increases along with the increasing temperature, medium concentration and profile of pitting corrosion in the surface.…”