Development of the prevention technique for the powder adhesion on substrate by the micro-fabrication and nanoparticle coating

Segawa, Tomoomi ; Kawaguchi, Koichi  ; Ishii, Katsunori ; Tokura, Ryoma*; Satone, Hiroshi*; Suzuki, Michitaka*

To reduce the hold-up of the nuclear material in the glove box and the external exposure dose, the development of the technology of the powder adhesion prevention by the micro-fabrication and nanoparticle coating to the glove box component has been proceed. The prevention effect of powder adhesion and adhesion force of micro-fabricated stainless steel and acrylic, polycarbonate and stainless steel coated with nanoparticle were evaluated. The atomic force microscope was used for measuring the adhesion force between the unmodified and micro-fabricated stainless steel surface and the colloidal probe. In the case of unmodified, the adhesion force was about 2.03 nN, whereas when the micro-fabricated, the adhesive force was reduced to about 1.16 nN. This method is considered to be effective for the reduction of the hold-up of the nuclear material in the glove box and the external exposure dose.