This book includes selected, peer-reviewed contributions from the 2018 International Conference on "Physics and Mechanics of New Materials and Their Applications", PHENMA 2018, held in Busan, South Korea, 9-11 August 2018. Focusing on manufacturing techniques, physics, mechanics, and applications of modern materials with special properties, it covers a broad spectrum of nanomaterials and structures, ferroelectrics and ferromagnetics, and other advanced materials and composites. The authors discuss approaches and methods in nanotechnology; newly developed, environmentally friendly piezoelectric techniques; and physical and mechanical studies of the microstructural and other properties of materials. Further, the book presents a range of original theoretical, experimental and computational methods and their application in the solution of various technological, mechanical and physical problems. Moreover, it highlights modern devices demonstrating high accuracy, longevity and the ability to operate over wide temperature and pressure ranges or in aggressive media. The developed devices show improved characteristics due to the use of advanced materials and composites, opening new horizons in the investigation of a variety of physical and mechanical processes and phenomena.