1. a Materials Engineer Center, University of Perugia, Località Pentima Bassa, 21 - 05100 Terni, Italy
2. b Materials Engineer Center, University of Perugia, Località Pentima Bassa, 21 - 05100 Terni, Italy
3. c Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Cno. La Carrindanga Km. 7 - 8000 Bahía Banca, Argentina
4. d Materials Engineer Center, University of Perugia, Località Pentima Bassa, 21 - 05100 Terni, Italy