2 results listed
The low-velocity impact response of Multi-Walled Carbon Nanotube (MWCNT) added alumina-epoxy
nanocomposites is investigated. Alumina fiber reinforced nanocomposites which contain 0.1%, 0.3%, 0.5%, 0.7% and
1% per weight MWCNTs of epoxy resin are produced by using Vacuum Resin Transfer Molding (VARTM) method.
Three levels of energy which are 20J, 25J and 30J are applied to nanocomposites. The time history response of load,
displacement, velocity, and energy are measured and reported. In addition, the composite damage associated with each
energy level is compared to different MWCNT per weight. The effect of MWCNTs was analysed on the fracture surface
of composites through optical and scanning electron microscopy (SEM). Results demonstrated that MWCNTs improved
impact response and limited the damage size of nanocomposites. The addition of 1% MWCNTs resulted in an increase
in energy absorption.
International Symposium on Light Alloys and Composite Materials
UHAKS
Sezer Picak
Ahmet AKDEMİR
Ahmet Avcı
Yusuf Usta
The current study focus on the investigation of mechanical and thermal properties of Multi-Walled Carbon
Nanotube (MWCNT) added alumina/epoxy nanocomposites. Alumina fiber reinforced nanocomposites, which were
made of 0.1%, 0.3%, 0.5%, 0.7% and 1% per weight MWCNTs of epoxy resin, are produced by using Vacuum Resin
Transfer Molding (VARTM) method. Tensile tests, bending tests, volume fraction tests and dynamic mechanical analysis
(DMA) were performed in order to determine mechanical properties of MWCNT added alumina/epoxy nanocomposites.
Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and thermal conductivity tests were
performed to determine thermal properties of MWCNT added alumina/epoxy nanocomposites. Mechanical properties of
nanocomposites produced by adding MWCNT were investigated; young’s modulus, tensile strength and bending strength
of nanocomposites were improved. Tg temperature, gel time and coefficient of thermal conductivity were determined.
Also, the effect of MWCNTs was analyzed on the fracture surface of composites through optical and scanning electron
microscopy (SEM). Results promised a new composite materials that is comparable to conventional composite materials.
International Symposium on Light Alloys and Composite Materials
UHAKS
Sezer Picak
Ahmet AKDEMİR
Ahmet Avcı
Yusuf Usta