PrefaceChapter 1: Structural Metals ProcessingParameter Design of Sand Casting to Minimize Shrinkage Defects, Porosity Defects and Incomplete DefectsHardness and Microstructure of TiN Coating on Aluminum Alloy with DC SputteringChapter 2: Friction Stir WeldingFriction Stir Welding between Marine Grade Aa 5083 and HSLA SteelMicrostructure and Mechanical Characteristics of Friction Welded Joint between Alumina and Aluminum Casting AlloyOptimizing Micro Friction Stir Spot Welding (mFSSW) of Aluminum Alloy AA1100 Using Neural Network ModelThe Effect of Friction Stir Weld (FSW) Process Parameters on Tensile Strength, Macro Structure, and Hardness in Results of AA7075 Butt JointsChapter 3: Polymers and CompositesIncorporating Graphene Nanofiller for the Improvement of Hydrophobic Properties of Cassava Peel Starch BioplasticThe Effect of Bleaching Variation on Schoutenia Ovata Korth Fiber as a Composite ReinforcementMicrocrystalline Cellulose as Composite Reinforcement: Assessment and Future ProspectsEffect of Silanized Zirconium Oxide (ZrO2) Filler on Hardness of Acrylic-Based Denture TeethChapter 4: Recycling and Applications of Natural MaterialsInfluence of Orthophosphoric Acid Activation on the Quality of Activated CarbonsPhysical and Morphological Characterisation of Typha Australis FibresOptimization of the Co-Production between the Rice Husk and the Pulp of the Cashew Apple Produced in the Natural Region of CasamanceStudy of the Physic-Mechanical Properties of a Typha Concrete Composites: A Possible New Material for Sustainable ConstructionNormal Water Effect on the Thermal and the Mechanical Properties of Jute YarnsOptimizing Aluminum Melting with Sustainable Biomass Fuels: A Case Study of Ulin (Eusideroxylon zwageri) Wood and Galam (Melaleuca cajuputi) Wood