Italian National agency for new technologies, energy and sustainable economic development (ENEA) ITALY
ENEA (Italian national agency on new technologies, energy and sustainable economic development) is the second governmental Research Institution of Italy with about 3000 permanent employees. The main task of ENEA is to develop research and innovation for sustainable growth aiming at promoting competitiveness and improving employment in Italy, taking care to preserve the environment. ENEA is covering large sectors of applied research paying particular attention to the technology transfer from research to SMEs.
ENEA Fusion Division is involved in projects financed mainly by European Union Programmes, as well as European technological Platforms and international networks, associations and initiatives. ENEA, through the EURATOM/ENEA Association Agreement, is the Italian interface with EURATOM for the development of the nuclear fusion research programme. The research group of the EURATOM-ENEA Association (coordinated by ENEA) is made up of about 600 people, involving several Universities and public research institutions and national industries.
The Superconductivity Laboratory of the ENEA Fusion Division, involved in this Project, is one of the largest and oldest Italian group dealing with applied superconductivity. The group, headed by dr. Antonio della Corte, is composed by about 30 people among physicists, engineers and technicians where electromagnetic, mechanics, cryogenics competences coexist with competences in thin film and magnets technology. It is mainly involved in large scale applications in both EFDA and ITER framework programmes for fusion reactors as well as in national projects on advanced superconducting materials and devices. The Superconductivity laboratory has solid expertise on textured substrate development, deposition of heterostructures on metallic substrates for YBCO coated conductors and flux pinning properties. It hosts a comprehensive Laboratory for textured metallic substrates preparation, for bulk synthesis and for thin film deposition by either physical (PLD, sputtering, e-beam) or chemical processes (CSD technique). A laboratory scale reel-to-reel deposition system for buffer layer and YBCO deposition for short length metallic substrates by PLD and e-beam evaporation is present. Characterization of sample is possible by means of micro-structural investigations by AFM/STM, SEM and XRD and superconducting properties by both dc transport and magnetic measurements.
Previous relevant experience related to the project’s aims:
ENEA has been involved in coated conductor development since the 1997. It developed one of the earliest non magnetic textured substrates by the Ni-V alloy binary system in 1998. Using such a substrate, ENEA demonstrated that through the control of the oxidation process epitaxial native oxide could be formed on the substrate surface and used as a seed layer for CeO2 epitaxial layer. On this basis, ENEA presented the simple all PLD coated conductor architecture NiV/NiO/CeO2/YBCO. In 2003 the same architecture was successfully reproduced on Ni-5%at.W (without NiO). Since then, ENEA started studying several ternary Ni-, and more recently, Cu- based alloys. In 2005, ENEA started working on CSD technique for YBCO by TFA precursors and successfully transferred to coated conductor production process. Currently, a low fluorine content precursor solution has been successfully proposed. Since 2006 nanostructured YBCO by introduction of BaZrO3 secondary phase was deposited and studied for optimization of the pinning strength.
ENEA was the coordinator of the sub-task on YBCO tapes in the framework of the national programme on “Applications of High Temperature Superconductivity”, 2000-2003. It participated to the European network on superconductivity SCENET and SCENET2. ENEA is currently the coordinator of the national project SURE: ARTYST devoted to study of YBCO vortex pinning and application of CSD technique in the tape production process.
Profile of staff members involved in the project:
- Giuseppe Celentano, responsible of the HTS programme,
- Achille Angrisani Armenio, Fabio Fabbri, Valentina Galluzzi and Antonella Mancini (film deposition), Andrea Augieri (dc measurements, is the coordinator of SURE:ARTYST),
- Alessandro Rufoloni (electron and atomic force microscopy),
- Angelo Vannozzi (textured substrate development and film deposition).