Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Kazuyuki Kohama"'
Autor:
Kazuyuki Kohama
Publikováno v:
Open Ceramics, Vol 19, Iss , Pp 100641- (2024)
This study proposes the use of Al-added Si–Mg composite fillers for low-temperature joining of SiC while maintaining high-temperature reliability of the joints. SiC was brazed at 1100 °C using the fillers with various compositions, based on Mg-eva
Externí odkaz:
https://doaj.org/article/41fc7f12c0a44b9f9cb5dfa237e1b200
Autor:
Kazuyuki Kohama
Publikováno v:
Ceramics International. 47:22424-22434
Silicon-nitride (Si3N4) components were joined under vacuum at 1100 °C for 10 min using Si–Mg composite fillers with Mg contents (XMg) that ranged from 0 at.% to 59 at.%. The Si3N4/Si3N4 joints were fabricated via Si layer formation at the joint i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53a09a804a50096b75c0a2416f9283ab
https://doi.org/10.1016/j.ceramint.2021.04.252
https://doi.org/10.1016/j.ceramint.2021.04.252
Autor:
Kazuyuki Kohama
Publikováno v:
Science and Technology of Welding and Joining. 25:383-390
This study proposes the use of a Si–Mg composite filler for low-temperature joining of alumina (Al2O3) ceramics while maintaining a high-temperature reliability. The Al2O3/Al2O3 joints were formed ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94ef3e0242b2e094d0e2318bd69ef12b
https://doi.org/10.1080/13621718.2020.1714874
https://doi.org/10.1080/13621718.2020.1714874
Autor:
Kazuhiro Ito, Yoshikazu Danno, Kazuyuki Kohama, Hajime Yamamoto, Yoshiki Mikami, Hidetoshi Fujii
Publikováno v:
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY. 36:1WL-4WL
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccf683a394559e8baa4524a721c986de
https://doi.org/10.2207/qjjws.36.1wl
https://doi.org/10.2207/qjjws.36.1wl
Publikováno v:
Metallurgical and Materials Transactions B. 48:2293-2303
The development of high-quality semisolid raw materials requires an understanding of the phase transformations that occur as the material is heated up to the semisolid state, i.e., its melting behavior. The microstructure of the material plays a very
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2faadafd14514ccaca7b1aa971c5a2ea
https://doi.org/10.1007/s11663-017-1018-5
https://doi.org/10.1007/s11663-017-1018-5
Publikováno v:
Journal of Manufacturing Processes. 26:122-130
Motivated by the recent use of friction stirring in the manufacture of in-situ composites, a new additive manufacturing method for the design and manufacture of tailor-made functionally graded composites is presented. The existing literature on the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c66a844aa7dfa77779b5832fbb29c23
https://doi.org/10.1016/j.jmapro.2017.02.007
https://doi.org/10.1016/j.jmapro.2017.02.007
Autor:
Kazuyuki Kohama
Publikováno v:
JOURNAL OF THE JAPAN WELDING SOCIETY. 88:502-504
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edf776ce27dbcd78205b2d76b47c594c
https://doi.org/10.2207/jjws.88.502
https://doi.org/10.2207/jjws.88.502
Autor:
Kazuyuki Kohama, Kazuhiro Ito
Publikováno v:
Materials & Design, Vol 110, Iss, Pp 888-894 (2016)
The authors conducted direct solid-state diffusion bonding of zirconium carbide (ZrC)-sintered materials with different average grain sizes of 3.5, 7.5 and 35 μm using a spark plasma sintering system. ZrC samples were bonded at 1300–2000 °C for 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff449517b17e12219d00af9cab6ab331
http://www.sciencedirect.com/science/article/pii/S0264127516311236
http://www.sciencedirect.com/science/article/pii/S0264127516311236
Publikováno v:
Solid State Phenomena. 256:63-68
Fe-2.5C-1.5Si gray cast iron evaluated in previous works exhibited promising potential as semisolid raw material presenting low levels of maximum stress and viscosity, similar to Al-Si alloys. This work is intended to investigate phase transformation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f5e9713ce706845df667cae41b26638
https://doi.org/10.4028/www.scientific.net/ssp.256.63
https://doi.org/10.4028/www.scientific.net/ssp.256.63
Autor:
Kazuhiro Ito, Abhay Sharma, Kazuyuki Kohama, Angshuman Kapil, Manabu Tanaka, Syed Quadir Moinuddin
Publikováno v:
Science and Technology of Welding and Joining. 21:452-459
The paper investigates process–structure–property interconnection in anti-phase synchronised twin-wire gas metal arc welded low carbon steel samples wherein process variation is achieved by using similar and dissimilar currents and diameters at l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8c52124c790329acfeea9c7cf2294c3
https://doi.org/10.1080/13621718.2015.1124960
https://doi.org/10.1080/13621718.2015.1124960