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Joan Josep Roa Rovira

Steros GPA Innovative S.L., Spain

Dr. Joan Josep Roa is the Test Laboratory Manager at STEROS GPA INNOVATIVE S.L.U. He earned a degree in chemical engineering from the University Rovira I Virgili, Spain, in 2005, followed by a degree in materials engineering from the Universidad Politécnica de Cataluña (UPC), Spain, in 2007. He obtained a Ph.D. from the University of Barcelona, Spain, in 2010, after which he pursued a two-year postdoctoral fellowship at the “Centre National de la Recherche Scientifique,” France. In 2012, Dr. Roa returned to UPC with a Juan de la Cierva contract, funded by the Ministry of Economy and Competitiveness. In 2016, he became a tenure-track associate professor in the Department of Materials Science and Metallurgy through the Serra Húnter Programme. Since 2020, he has served as an associate professor at UPC. Dr. Roa’s research involves the mechanical characterization of materials at different length scales, characterization of plastic deformation mechanisms, 3D printing technology, and development and characterization of conductive polymeric materials. He has co-authored more than 160 peer-reviewed publications, 6 reviews, 9 book chapters, 1 book, and 240 proceedings and reports primarily focused on advanced mechanical characterization techniques. He has presented more than 225 communications, including 20 invited talks. He is also a co-creator of patent applications and has contributed to various industrial implementations. Additionally, he is responsible for managing both international and national R&D projects.

1books edited

1chapters authored

Latest work with IntechOpen by Joan Josep Roa Rovira

In the contemporary world, where energy efficiency and sustainability are paramount, exergy analysis has emerged as a crucial tool for addressing the complex challenges of energy use and environmental impact. Unlike traditional energy analysis, which focuses solely on the quantity of energy, exergy analysis considers the quality of energy, providing a more nuanced understanding of how energy is utilized within systems. This distinction is critical in a world where maximizing resource efficiency is not just desirable but necessary. Within the aforementioned information, the book has several topics related to exergy trying to provide the reader with a deeper understanding of this field. In this sense, a deep introduction talking about the theoretical background will be presented and subsequently the exergy evaluation in the energy field and fluids. In summary, exergy analysis is a vital tool in the contemporary world, enabling more sustainable and efficient use of energy resources. By focusing on energy quality and the irreversibility in energy systems, exergy analysis contributes significantly to the design and optimization of processes that are essential for a sustainable future.

Exergy

Exergy

Edited by Joan Josep Roa Rovira

Chapters authored

Can the DryLyte® Technology Polish 3D Printed Ceramic/Metal Samples and in Particular WC-Co?

By Guiomar Riu Perdrix and Joan Josep Roa Rovira

DryLyte® Technology is an effective surface finish technique, which follows the same traditional electrolytic cell principle, but uses an electrolytic solid non-conductive medium rather than a liquid one. For the last 10 years, this technology has been attracting a lot of attention compared to conventional ones due to the selective smoothing of the surface technique, interacting only with the roughness peaks and not with the valleys, etc. In this book’s chapter, for 3D-printed cemented carbides (WC-Co) polished with DryLyte® Technology, it is shown the correlation between the microstructure and the surface integrity, in terms of mechanical properties, at submicrometric length scale. Also, a particular case study is presented of 3D-printed WC-Co as a function of the testing temperature, ranging from room temperature up to service-like working conditions. Finally, the mechanical properties are correlated as function of the chemical nature and/or crystallographic phase.

Part of the book: Advances in 3D Printing

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