Selected peer-reviewed full text papers from the 4th International Conference on Advanced Materials Science (ICOAMS 2021) Selected peer-reviewed full text papers from the 4th International Conference on Advanced Materials Science (ICOAMS 2021), August 25-26, 2021, Surakarta, Indonesia

PrefaceChapter 1: Nanomaterials and NanotechnologiesLoading of Silver Nanoparticles onto Silica Sand Surface and Simulating of Heat Dissipation for Therapeutic Heat ApplicationsSynthesis and Characterization of Semiconductor Nanoparticles CuInS2 QDs/TiO2The Effects of Annealing on the Morphology and Luminescence Stability of an Inorganic Perovskite CsPbBr3 Synthesized Using the Ligand Assisted Reprecipitation (LARP) MethodThe Effect of Cu2O Synthesis Method on its Optical PropertiesEffect of Perovskite CsPbBr3 Concentration and Coating Method on Thin Film Morphology and its Photovoltaic PerformanceChapter 2: Biomass Processing and Technologies of Environmental EngineeringGreen Cosmetic from Natural Colorant of Anthocyanin Extracted from Ipomoea batatas L.Characterization of Bio Oil Derived from Palm Kernel Shell Pyrolysis Catalyzed by Iron Ore Based CatalystExtraction of Flavonoid Compound of Bitter Melon (Momordica charantia L.) Fruit and Leaves Using the Soxhlet Method in Different Types of SolventCharacteristics of Biochar from Jengkok Tobacco: The Effect of Quenching in Pyrolysis ProcessUptake Test the Content of Ambient SO2 (Sulphur Dioxide) and NO2 (Nitrogen Dioxide) Compounds in Lichen Thalli in Urban, Sub Urban and Forest in Surakarta, Central Java, IndonesiaThe Effect of Particle Size, Pressure, Holding Time and Drying Temperature to the Physical and Mechanical Properties of BriquettesChapter 3: Polymers and CompositesEffect of Heating Time on Woven Bamboo Fiber Composites to Bending StrengthThe Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of Cordyline australis with Sea Water Surface TreatmentReview of Oil Palm Mesocarp Fiber (OPMF) Mechanical and Chemical Properties Improvement to Develop Environment Friendly MaterialChapter 4: Metallurgy and Materials ProcessingStructure and Mechanical Properties of Double Side Friction Stir Welded Aluminium AA6061 with the Addition of Cu PowderEffect of Etching and Electroless Plating Time on Contact Angle of Acrylonitrile Butadiene Styrene for 3D-Printed SubstratesDevelopment of an Oxide Dispersion Strengthened Austenitic Steel Powder with 4% Aluminum AdditionThe Effect of Variation of Aluminum Thickness Series 7075 in Heat Treatment Solution on Tensile Strength and MicrostructureThe Fatigue Strength Analysis of ABS (Acrylonitrile Butadiene Styrene) Material Shaft Result of 3D Printing Process due to Rotating Bending LoadChapter 5: Films, Coatings and Surface ProcessingHardness and Wear Properties of Al-TiN Coatings Produced by DC SputteringCorrosion Protection on AISI 304 by Shot Peening Treatment with Variation of Particle Size and Shooting PressureDoes Plasma Treatment Effective for Surface Modification of Polymer? An Overview of Treatment Effect on Adhesive and Tribological PropertiesFriction Coefficient Effect on Stress-Strain Distribution of Ceramic Coated Aeroengine Substrate Using Finite Element AnalysisThe Use of Chitosan as a Coating to Improve the Quality of Oyster Mushroom Vacuum Frying Tubes with Electrodeposition ProcessEffects of Emulsifiers on Engineering and Microstructural Properties of HPMC/Shellac Composite Films