This book is a collection of the selected peer-reviewed papers presented at the 2024 5th Research, Invention, and Innovation Congress (RI2C), organised by the Science and Technology Research Institute (STRI), King Mongkut's University of Technology North Bangkok, during August 8-9, 2024. The Congress was aimed at highlighting and sharing new knowledge as well as contributing to innovative sustainable development. The selected articles delve into various facets of materials science and technology and present the results of research dedicated to, amongst others, sustainable materials, materials for biomedical applications, functional materials, corrosion and oxidation processes as well as engineering and mechanics of materials and technologies in civil engineering and geotechnics. The research results presented in this edition will be helpful to engineers and researchers involved in materials, biomedical engineering, and eco-friendly building materials fields of science.