TY - GEN
T1 - Electroless deposition of metal oxide on SiC particles reinforced for producing Al-Si /SiC metal matrix composites
AU - Syahrial,, Anne Zulfia
AU - Mas'udah, Tatu
AU - Lutfi, Syukron
PY - 2011
Y1 - 2011
N2 - Metallization techniques based on electroless coating are used to coat SiC particles reinforced to make Al-Si/SiC metal matrix composites. Nitric Acid (HNO3), aluminum powder and different percentage of magnesium addition were used in solutions as electroless coating medium to coat the surface of SiC particles. Five different percentage of Mg was used from 0.1 to 0.5 wt% in electrolyte solution. Metal oxide coating was characterised by scanning electron microscope (SEM), energy dispersion spectroscopy (EDS), X-ray diffraction (XRD) as well as Transmission Electron Microscope (TEM). It is obtained that metal oxide layer formed on the SiC surface was MgAl 2O4 or spinel which was analysed by XRD and confirmed by EDS. Spinel (MgAl2O4) layer was found at all composition of Mg, and such layer improved wettability between SiC and Al-Si. It also is found that the solution with 0.2%wt Mg content generated more homogeneous metal oxide layer on SiC particles therefore the solution with 0.2wt% Mg was selected as electroless coating medium to coat SiC particles reinforced to produce Al-Si/SiC metal matrix composites by stir casting route. The phases present in Al-Si/SiC composites was spinel (MgAl2O4), Si eutectic and Mg2Si which was analysed by XRD.
AB - Metallization techniques based on electroless coating are used to coat SiC particles reinforced to make Al-Si/SiC metal matrix composites. Nitric Acid (HNO3), aluminum powder and different percentage of magnesium addition were used in solutions as electroless coating medium to coat the surface of SiC particles. Five different percentage of Mg was used from 0.1 to 0.5 wt% in electrolyte solution. Metal oxide coating was characterised by scanning electron microscope (SEM), energy dispersion spectroscopy (EDS), X-ray diffraction (XRD) as well as Transmission Electron Microscope (TEM). It is obtained that metal oxide layer formed on the SiC surface was MgAl 2O4 or spinel which was analysed by XRD and confirmed by EDS. Spinel (MgAl2O4) layer was found at all composition of Mg, and such layer improved wettability between SiC and Al-Si. It also is found that the solution with 0.2%wt Mg content generated more homogeneous metal oxide layer on SiC particles therefore the solution with 0.2wt% Mg was selected as electroless coating medium to coat SiC particles reinforced to produce Al-Si/SiC metal matrix composites by stir casting route. The phases present in Al-Si/SiC composites was spinel (MgAl2O4), Si eutectic and Mg2Si which was analysed by XRD.
KW - Al-Si/SiC metal matrix composites
KW - Metal oxide coating
KW - MgSi
KW - SiC particles
KW - Spinel
UR - http://www.scopus.com/inward/record.url?scp=79960420090&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.277.43
DO - 10.4028/www.scientific.net/AMR.277.43
M3 - Conference contribution
AN - SCOPUS:79960420090
SN - 9783037851791
T3 - Advanced Materials Research
SP - 43
EP - 50
BT - Advanced Materials Research QiR 12
T2 - 12th International Conference on Quality in Research, QiR 2011
Y2 - 4 July 2011 through 7 July 2011
ER -