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ENEA - Fusion division

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Advanced materials

Intense neutron source International Fusion Materials Irradiation Facility
[Collaboration with Centro Sviluppo Materiali (CSM) in Castel Romano-Roma and Flametal SpA in Fornovo sul Taro-PR]

Micrograph of a tungsten thick coatingMicrograph of a tungsten thick coating

The R&D concerns the deposition of thick protective boron carbide (B4C) and tungsten coatings on the steel or copper alloy plasma-facing components of a tokamak reactor.
To improve adhesion and thermal-mechanical compatibility of the filler material with the metal substrate, a bonding layer of varying composition is realised before deposition:

The coatings have also been characterised in relation to thermal-mechanical fatigue


References and Publications