Rosario Vidal supported me. I consider the determined confidence she deposited on me as fundamental. I also appreciate she cared about me as one of her doctoral children. I would also like to thank her for assuming that chief tutoring role. Some months later Iván Mora joined us as a co-director of the thesis. His contribution have undoubtfully improved the quality of the thesis. Besides, his continuous recommendations of making everything simpler have become everlasting knowledge for me to hold. The task of both of them have eventually been essential for my personal development purposes as a doctoral student.My desire for completing a doctoral degree comes from my experience in a research group called PIMA as a postgraduate. Along with the members of this group I truly discovered what science and a scientist are. This was thanks to people such as Estefanía Sánchez Safont, Luis Cabedo, José Gámez and Jennifer González, among others. I would like to include in this category other scientist with which I collaborated at that time, with my first published article as a result. They are Rosa Mondragón Cazorla, Leonor Hernández and Enrique Juliá. My contact with them has endured along my doctoral period. An especial mention is for Rosa Mondragón Cazorla, whom I acknowledge the interesting conversations in the many days commuting to the University in the train.More people joined the PIMA group, such as Jorge García Cañadas, Braulio Beltran, Fran Romero, Nuno Araújo and Aziz Aldureid, among others. An especial mention is for Adrián Mota Babiloni, whom I want to thank for his encouragement in pursuing the doctoral training and useful recommendations. I appreciate the interesting conversations we had along the lunchtime and for considering me as one member more of their group.Apart from that, I would like to mention the colleagues of the GID research group, where I mostly developed the thesis. Nuria Sánchez-Pantoja developed her doctoral thesis concurrently to me. Others had either undergraduate or postgraduate stays in the group, such as Higinio Martínez, Eva Esteve Recatalà, Javier Sánchez, Ana García, Gemma Tidó and many more. Two Mexican professors visited the group, Claudia Saldaña and Sarah Messina. I acknowledge the good moments spent with them.During my doctoral period I also worked at Instituto de Tecnología Cerámica. I thank them for the good time spent in the spare time in there. In particular, Irina Celades,