Preface Chapter 1: Metal Processing Assessment of Mechanical Strength of A36 Steel with Flux Cored Arc Welding Process Influence of Reinforcing nano-Al2O3 Particles on Microstructure and Hardness Properties of HVOF Sprayed 80Ni20Cr Coatings Chapter 2: Functional Materials Structure, Magnetic and Magnetocaloric Properties of Attempted P Substitutions in LaFe11.5Si1.5 Giant Magnetocaloric Material The Influence of Sn Addition on the Magnetocaloric Effects, Magnetic and Mechanical Properties of Fe2P-Type Mn-Fe-P-Si Compounds Preparation and Characterization of Black Phosphene/Titanium Dioxide Composite Nanomaterials by Liquid-Stripping and Solution Mixing Method Chapter 3: Reprocessing and Reusing of Biowaste Developing New Natural Surfactant from Date Seeds for Different Field Applications Comparative Study of Mechanical Behavior between an Adhesive Made from Date Palm Waste and FM-73 Adhesive Lignocellulose Composition of Preparation of Porous Carbon Materials and CO2 Adsorption Performance Research Producing Animal Originated Charcoal Production and its Characterization Analysis Compared to Brown Coal Preparation and Characterization of Urea-Modified Lignin-Derived Porous Carbon Materials and their CO2 Adsorption Properties Detailed Analytical EPMA Study of the OPC Pastes Prepared with the Addition of Raw and Milled Fly Ashes.