Effect of Slit Shape on Joinability of Zircaloy - SiC/SiC Composite Tube Joint with Titanium Powder

Hisashi Serizawa; Yuji Sato; Naofumi Nakazato; Masahiro Tsukamoto; Hirotatsu Kishimoto

doi:10.4028/www.scientific.net/MSF.941.1944

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HomeMaterials Science ForumMaterials Science Forum Vol. 941Effect of Slit Shape on Joinability of Zircaloy -...

Effect of Slit Shape on Joinability of Zircaloy - SiC/SiC Composite Tube Joint with Titanium Powder

Abstract:

As for the fuel cladding in the light-water reactor, silicon carbide fiber reinforced silicon carbide matrix (SiC/SiC) composite is one of the promising candidates as a replacement of Zircaloy due to many superiorities, where it is necessary to develop the end-cap seal of SiC/SiC composite cladding. In this research, the caulking method was employed as the method for sealing the end cap of SiC/SiC composite tube by Zircaloy tube where the titanium micro-powder was inserted between two tubes. The fiber laser was circumferentially irradiated on the outer surface of zircaloy tube, and the insert method of titanium powder was varied by changing the cutting method of SiC/SiC composite tube. The examinations about the slit shape effect for the flat cutting suggested that the hook slit is considered to be the best cutting method for holding the titanium powder during the laser irradiation where the width of slit should be narrower than that of laser irradiation line.

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Materials Science Forum (Volume 941)

Pages:

1944-1949

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https://doi.org/10.4028/www.scientific.net/MSF.941.1944

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Online since:

December 2018

Authors:

Hisashi Serizawa*, Yuji Sato, Naofumi Nakazato, Masahiro Tsukamoto, Hirotatsu Kishimoto

Keywords:

Airtightness, Caulking Joint, Laser, SiC/SiC Composite, Zircaloy

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