An extensive analysis of mechanical, thermal and physical properties of jute fiber composites with different fiber orientations

The study is aimed to find the effect of orientation of the woven jute fiber on the composites with epoxy matrix on the mechanical properties, thermal properties with different orientations (0°, 15°, 30°, 45°, 60° & 75°) of jute fiber. The mechanical properties such as tensile strength, flexural strength, and impact strength of the prepared composites are obtained with ASTM standard specimens. The composite prepared with 30° orientation fiber has shown better properties compared to the other orientation directions. Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA). The work has been carried out to predict the thermal properties of the prepared jute fiber composite specimens. DSC analysis revealed volatilization of the molecules induced the endothermal reaction, and the charring development caused the exothermal reaction. TGA curve peaks showed the removal of hemicellulose, decomposition of cellulose and lignin.Scopu

Investigation of Mechanical and Corrosion Properties of Al 7075/Garnet Metal Matrix Composites by Two-stage Stir Casting Process

The impact of Garnet addition into the AL7075 aluminium matrix on the physical, mechanical and corrosion properties are studied in this research paper. Al 7075/garnet composites are fabricated by using two-stage stir casting method in different (0, 5, 10, 15) volume percentages. Photomicrograph of prepared samples revealed the uniform distribution of garnet reinforcement into the base matrix. The corrosion rate is calculated by potentiodynamic polarization method. The actual density is increased by around 1.2% for al 7075 / garnet (15%) composite as compared to base alloy. Micro hardness of al 7075 / garnet (15%) composite is raised by around 47 (34%) compare to as cast base matrix. Al 7075 / garnet (15%) composite tensile strength stood at 252 Mpa, which is 40% greater than the base alloy. Al 7075 / 15% garnet composites reduce around 97% of corrosion rate than the base matrix. Alloy elements influenced the corrosion than Garnet reinforcement