Zobrazeno 1 - 10
of 271
pro vyhledávání: '"Akio Hirose"'
Autor:
Tomokazu Sano, Tomoki Matsuda, Akio Hirose, Mitsuru Ohata, Tomoyuki Terai, Tomoyuki Kakeshita, Yuichi Inubushi, Takahiro Sato, Kohei Miyanishi, Makina Yabashi, Tadashi Togashi, Kensuke Tono, Osami Sakata, Yoshinori Tange, Kazuto Arakawa, Yusuke Ito, Takuo Okuchi, Tomoko Sato, Toshimori Sekine, Tsutomu Mashimo, Nobuhiko Nakanii, Yusuke Seto, Masaya Shigeta, Takahisa Shobu, Yuji Sano, Tomonao Hosokai, Takeshi Matsuoka, Toshinori Yabuuchi, Kazuo A. Tanaka, Norimasa Ozaki, Ryosuke Kodama
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Over the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driv
Externí odkaz:
https://doaj.org/article/e7aa8878c021417eb97e0c7d3678896e
Publikováno v:
Materials & Design, Vol 235, Iss , Pp 112420- (2023)
We demonstrate multiscale mechanical testing using miniature and microscale tensile tests to elucidate the crack initiation and propagation behaviors corresponding to interfacial nanostructures in dissimilar joints of 6061 aluminum alloy and 304 stai
Externí odkaz:
https://doaj.org/article/2769077e79744416a626ee6ae3c157d5
Publikováno v:
Nanomaterials, Vol 13, Iss 16, p 2292 (2023)
This paper demonstrates the in situ sinter bonding of Ag microparticle pastes to a Si substrate via the temporal formation and decomposition of Ag carboxylate on the surface of Ag microparticles. This was proposed via the investigation of Ag sinter b
Externí odkaz:
https://doaj.org/article/c05230dd8d84468e906c47450a4da1aa
Publikováno v:
Journal of Advanced Joining Processes, Vol 5, Iss , Pp 100112- (2022)
Dissimilar material joining via friction stir spot welding (FSSW) has been implemented in some automobiles. However, the effectiveness of this method is easily affected by the surface condition of the lower plate. To solve this problem, a method that
Externí odkaz:
https://doaj.org/article/9ac1eff6530843a0a7f309a5b655fb1f
Autor:
Tomoki Matsuda, Toshiya Ogaki, Kotaro Hayashi, Chihiro Iwamoto, Takashi Nozawa, Mitsuru Ohata, Akio Hirose
Publikováno v:
Materials & Design, Vol 213, Iss , Pp 110344- (2022)
The macroscale mechanical properties of dissimilar joints are generally influenced by the fracture behavior of joint interface. However, little is known about the dominant factor for the joint properties related with both macroscale fracture behavior
Externí odkaz:
https://doaj.org/article/1125d8a74b854a749cea9aed38ec2ec9
Autor:
Eri Ota, Tomoki Matsuda, Hiroto Shoji, Tomo Ogura, Fumikazu Miyasaka, Tomokazu Sano, Mitsuru Ohata, Akio Hirose
Publikováno v:
Materials & Design, Vol 212, Iss , Pp 110221- (2021)
In this study, the synergistic effects of a hybrid surface treatment involving hydrochloric acid (HCl) immersion and silanization on friction stir spot welding (FSSW) of aluminum and carbon fiber reinforced thermoplastic (CFRTP) were investigated. Ma
Externí odkaz:
https://doaj.org/article/23eb30d9f0024e088aa563cf05b0c137
Autor:
Tomoki Matsuda, Seigo Yamada, Akihisa Takeuchi, Kentaro Uesugi, Masahiro Yasutake, Tomokazu Sano, Mitsuru Ohata, Akio Hirose
Publikováno v:
Materials & Design, Vol 206, Iss , Pp 109818- (2021)
Herein, we investigated the fracture behavior of thermally aged Ag–Cu composite sinter joints through nano-X-ray computed tomography (nano-CT) combined with microscale tensile testing. Nano-CT results showed that the joint comprised Ag/oxidized Cu
Externí odkaz:
https://doaj.org/article/a4856461bd2c4c1e9ed6994e624f1203
Publikováno v:
Materials & Design, Vol 160, Iss , Pp 475-485 (2018)
Thin metallic Cu and Ni meshes were successfully embedded within SAC305 solder joints. Defects (residues) within the joint were removed by a vacuum step in the bonding sequence. The metallic mesh inlets were metallurgically bonded by the formation of
Externí odkaz:
https://doaj.org/article/9278a06d27cb49f6889a31f6282b020d
Autor:
Tomokazu Sano, Takayuki Eimura, Akio Hirose, Yosuke Kawahito, Seiji Katayama, Kazuto Arakawa, Kiyotaka Masaki, Ayumi Shiro, Takahisa Shobu, Yuji Sano
Publikováno v:
Metals, Vol 9, Iss 11, p 1192 (2019)
The purpose of the present study was to verify the effectiveness of dry laser peening (DryLP), which is the peening technique without a sacrificial overlay under atmospheric conditions using femtosecond laser pulses on the mechanical properties such
Externí odkaz:
https://doaj.org/article/15c2bd01eef647f0b01956ddc83080c1
Autor:
Hiroaki Tatsumi, Hiroshi Yamaguchi, Tomoki Matsuda, Tomokazu Sano, Yoshihiro Kashiba, Akio Hirose
Publikováno v:
Applied Sciences, Vol 9, Iss 17, p 3476 (2019)
We have proposed a low-temperature bonding technology utilizing the sintering of Cu particles with transient liquid-phase of Sn-based solder, called transient liquid-phase sintering (TLPS), as a die-attach solution for high-temperature power modules.
Externí odkaz:
https://doaj.org/article/6851dd205c22421098742b3008cf7cfd