Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Segawa, Tomoomi; Kawaguchi, Koichi; Ishii, Katsunori; Makino, Takayoshi
no journal, ,
As a feasibility investigation of a glove with self-healing function, prototype tests of hybrid laminate materials and hybrid mixed materials consisting of self-healing elastomers and materials for gloves and vinyl bags used in glove boxes were examined. In the prototype test of the hybrid laminate material, swelling of Hypalon rubber and a tendency for Hypalon rubber to repel monomers were observed. Therefore, the Hypalon rubber was fixed to a metal plate and the thickness of the monomer application was increased, and sheet-like laminates were obtained with both Hypalon rubber and polyvinyl chloride. In a prototype test of the hybrid mixed material, it was verified that the mixed material was cured by UV irradiation, and sheet-like mixed materials consisting of Hypalon rubber and self-healing elastomers were successfully produced. As a result of the test, it was found that it was possible to fabricate sheet-like samples of both materials.
Kawaguchi, Koichi; Ishii, Katsunori; Segawa, Tomoomi; Makino, Takayoshi
no journal, ,
Mechanical property and self-repairing behavior of hybrid materials for advanced gloves or vinyl bags which consist from the current gloves material or vinyl bag material and self-repairing elastomer were evaluated.
Kawarai, Atsushi*; Obayashi, Hironari; Saito, Shigeru; Sasa, Toshinobu; Kondo, Masatoshi*
no journal, ,
FeCrAl alloys are promising structural materials for liquid metal blankets of fusion reactor because they form a self-healing alumina film on the surface and exhibit excellent coexistence with liquid metal. The purpose of this study is to clarify the formation and repair behavior of the oxide film in liquid metal. The corrosion tests were performed using the high temperature lead-bismuth flow corrosion test loop (OLLOCHI) for accelerator-driven system research at JAEA. Test conditions were lead-bismuth temperature of 450/350
C and oxygen concentration of 10
wt%. The specimens were strips of APMT with and without pre-oxidation. Pre-oxidation treatment formed an alumina film of about 400 nm on the surface of the specimens, and no corrosion was observed after 2,000 hours of corrosion testing. On the other hand, the specimen without pre-oxidation formed an alumina film of about 37 nm on the surface after corrosion testing, and no corrosion was observed. To further evaluate the self-healing behavior of the oxide film, the specimens were artificially damaged by grinding to a width of 2 mm and subjected to 2,000-hour corrosion test. As a result, it was found that an oxide film of about 30 nm thickness was re-formed in the damaged area of the specimen. This is almost the same thickness as the undamaged area, and no corrosion was observed. It was found that APMT steel, with or without pre-oxidation, exhibited excellent coexistence in liquid LBE by self-forming and repairing a highly corrosion-resistant film.
Kawaguchi, Koichi; Ishii, Katsunori; Segawa, Tomoomi; Makino, Takayoshi
no journal, ,
For the purpose of developing glove materials having a self-repairing function, a hybrid material consist of rubber and self-repairing elastomer was produced experimentally using commercially available self-repairing elastomer as an alternative to the future optimized self-repairing elastomer, and feasibility and mechanical properties were evaluated.