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Ryota Yoshimura, Go Kawamura, Hiroyuki Muto, Atsunori Matsuda
Session ID: 2L03
Published: 2011
Released on J-STAGE: September 30, 2011
CONFERENCE PROCEEDINGS
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Hiroyuki Hayashi, Keita Ozono, Hiromi Nakano
Session ID: 2L04
Published: 2011
Released on J-STAGE: September 30, 2011
CONFERENCE PROCEEDINGS
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satoshi kiyota, Yoko Suyama
Session ID: 2L05
Published: 2011
Released on J-STAGE: September 30, 2011
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Teruhisa Okuno, Go Kawamura, Hiroyuki Muto, Atsunori Matsuda
Session ID: 2L06
Published: 2011
Released on J-STAGE: September 30, 2011
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Go Kawamura, Mai Murakami, Teruhisa Okuno, Hiroyuki Muto, Atsunori Mat ...
Session ID: 2L07
Published: 2011
Released on J-STAGE: September 30, 2011
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Sayaka Yanadida, Atsuo Yasumori
Session ID: 2L08
Published: 2011
Released on J-STAGE: September 30, 2011
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Au nanoparticles exhibit localized plasmon resonance (LSPR) and are expected to be biochemical sensors because LSPR absorption wavelength depends on the environment around them. However, the LSPR peak was also shifted by particle aggregation. Therefore supporting and dispersion of the Au nanoparticles on the substrate was required. In this study, we prepared highly-dispersed Au nanoparticle in the TiO
2 thin film by photodeposition and layer-by-layer deposition. The chemical additive in photodeposition process was affected Au dispersion in the TiO
2 layer.
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Chan Gi Lee, Hiroyuki Nakamura, Masato Uehara, Hideaki Maeda
Session ID: 2L17
Published: 2011
Released on J-STAGE: September 30, 2011
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ling zhang, Hiroyuki Nakamura, Hideaki Maeda
Session ID: 2L18
Published: 2011
Released on J-STAGE: September 30, 2011
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Cu nanoparticles have received great attention in the growing printed electronics market due to their unique electrical properties and low cost. In this study, copper nanoparticles with a small size (<10nm) and narrow size distribution have been synthesized by using various kinds of amine as a surface capping agents. Surface capping agents showed great effects on the sintering temperature of copper nanoparticle ink. By selecting proper capping agents, the sintering temperature of as prepared copper ink was as low as 100oC, which could greatly expand the application of copper ink in fabrication of conductive pattern on flexible substrate by inkjet printing.
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Atsunori MATSUDA, Song-yul OH, Go KAWAMURA, Hiroyuku MUTO
Session ID: 2L19
Published: 2011
Released on J-STAGE: September 30, 2011
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Solid inorganic-organic composite electrolytes were mechanochemically synthesized from oxo-acid salt and azole for the application as an electrolyte in fuel cells. CsHSO4 (CHS) and CsH2PO4 (CDP) were used as an oxo-acid salt, and imidazole (Iz), 1,2,4-triazole (Tz), tetrazole (Tez) and benzimidazole (Bz) were used as an azole. The proton conductivity of the CHS- and CDP-Azole composite electrolytes was increased with an increase of azole contents, particularly in the lower temperature region than superprotonic transition temperatures of CHS and CDP.
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Ainun Rahmahwati Ainuddin, Norio Hakiri, Hiroyuki Muto, Atsunori Matsu ...
Session ID: 2L20
Published: 2011
Released on J-STAGE: September 30, 2011
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Silsesquioxane-titania hybrid films were prepared from phenyltriethoxysilane (PhTES), methyltriethoxysilane (MTES) and titanium tetrabutoxide (Ti(O-
n-Bu)
4) by sol-gel method on soda-lime-silicate glass substrate. UV light irradiation stimulated structural changes of the cleavage of Si-C bonds by photocatalytic activity of the TiO
2 component during UV irradiation. Characterization of hybrid films were examined using fourier transformed infrared spectrophotometer, UV-visible spectrophotometer,
29Si MAS-NMR spectra and a nanoindentation test. The Meyer hardness of the hybrid films increased with the increase of UV irradiation time. On the basis of changes in films properties, the silsesquioxane-titania hybrid films were promising for micropatterning process.
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Koji Kuraoka, Jun Ueno
Session ID: 2L21
Published: 2011
Released on J-STAGE: September 30, 2011
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Kaori Nomura, Ill Yong Kim, Koichi Kikuta, Takashi Tokuda, Jun Ohta, C ...
Session ID: 2L22
Published: 2011
Released on J-STAGE: September 30, 2011
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Shinya Ueda, Yoko Suyama
Session ID: 2L23
Published: 2011
Released on J-STAGE: September 30, 2011
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Kazuyoshi Sato, Takayuki Takarada, Satoshi Ohara, Hiroya Abe
Session ID: 2N01
Published: 2011
Released on J-STAGE: September 30, 2011
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Hiroya Abe, Makio Naito, Kazuyoshi Sato, Toru Kinoshita, Ryota Shinoza ...
Session ID: 2N03
Published: 2011
Released on J-STAGE: September 30, 2011
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Masato Kakihana
Session ID: 2N04
Published: 2011
Released on J-STAGE: September 30, 2011
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Seiichi Takami
Session ID: 2N06
Published: 2011
Released on J-STAGE: September 30, 2011
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Metal oxides have various properties including magnetism, ferroelectricity, and luminescence. In addition, most oxides are safe and stable in air and water. Due to these practical merits, various metal oxides are used in functional devices. We believe that the use of metal oxide nanocrystals should widen the application of metal oxides because nanocrystals enable incorporation of the functions of metal oxides to various materials such as polymers, solvents and biological molecules. We studied the hydrothermal synthesis of metal oxide nanocrystals and their surface modification, which facilitates the handling and hybridization of the produced metal oxide nanocrystals.
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Yoshio Bando
Session ID: 2N08
Published: 2011
Released on J-STAGE: September 30, 2011
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Minoru Osada, Takayoshi Sasaki
Session ID: 2N17
Published: 2011
Released on J-STAGE: September 30, 2011
CONFERENCE PROCEEDINGS
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Daisuke Furuta, Daiji Ijuu, Toshio Kimura
Session ID: 2N18
Published: 2011
Released on J-STAGE: September 30, 2011
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Hiroyasu Kido, Masanari Takahashi, Jun-ichi Tani, Nobuyuki Abe, Masahi ...
Session ID: 2N19
Published: 2011
Released on J-STAGE: September 30, 2011
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Yosuke Kawabata, Masayasu Ikeba, Masayuki Okuya
Session ID: 2N20
Published: 2011
Released on J-STAGE: September 30, 2011
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NAOTO SHIRAHATA, Daigo Hirakawa, Yoshio Sakka
Session ID: 2N21
Published: 2011
Released on J-STAGE: September 30, 2011
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Toshimichi Hanai, Masahiko Iyoda, Keigo Nabeta, Masayuki Okuya
Session ID: 2N22
Published: 2011
Released on J-STAGE: September 30, 2011
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Masahiro Hayashi, Satoko Tasaki, Soshu Kirihara
Session ID: 2N23
Published: 2011
Released on J-STAGE: September 30, 2011
CONFERENCE PROCEEDINGS
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Soshu Kirihara, Yasunori Uehara, Satoko Tasaki
Session ID: 2N24
Published: 2011
Released on J-STAGE: September 30, 2011
CONFERENCE PROCEEDINGS
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Susumu Igarashi, Satoko Tasaki, Soshu Kirihara
Session ID: 2N25
Published: 2011
Released on J-STAGE: September 30, 2011
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Satoko Tasaki, Chiaki Maeda, Soshu Kirihara
Session ID: 2N26
Published: 2011
Released on J-STAGE: September 30, 2011
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HIROYUKI MIYAZAKI, MIKINORI HOTTA, HIDEKI KITA, YASUHISA IZUTSU
Session ID: 2O01
Published: 2011
Released on J-STAGE: September 30, 2011
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Tomoya UMEDA, Kiyoshi HIRAO, Shinobu HASHIMOTO, Hideki HYUGA, Naoki KO ...
Session ID: 2O02
Published: 2011
Released on J-STAGE: September 30, 2011
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Kiyoto Sekine, Takeshi Kumazawa, Hideki Hyuga, Hideki Kita
Session ID: 2O03
Published: 2011
Released on J-STAGE: September 30, 2011
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Influence of joining time on flexural strength of boron carbide (B4C) ceramics joined with Al sheet was investigated. Al sheet was sandwiched between two B4C plates and joining was conducted by heating the specimen at 1000 C in vaccum. The four-point bending strength of joined B4C for 2 h was close to that of the B4C base material. On the other hand, the four-point bending strength of joined B4C for 16 h and 72 h decreased. Al existed in the joint of the specimen joined for 2 h, however, Al was not observed in the joint of those for 72 h. It is suggested that Al in the joint plays an important role in the joining of B4C.
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Mikinori Hotta, Naoki Kondo, Hideki Kita, Yasuhisa Izutsu
Session ID: 2O04
Published: 2011
Released on J-STAGE: September 30, 2011
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NAOKI KONDO, MIKINORI HOTTA, HIDEKI HYUGA, KIYOSHI HIRAO, HIDEKI KITA
Session ID: 2O05
Published: 2011
Released on J-STAGE: September 30, 2011
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Akihiko Ito, Takashi Goto
Session ID: 2O06
Published: 2011
Released on J-STAGE: September 30, 2011
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Teiichi KIMURA, Tetsushi MATSUDA, Hiroshi NOMURA, Yasuo NAGANO, Hideak ...
Session ID: 2O08
Published: 2011
Released on J-STAGE: September 30, 2011
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Tsuneaki Matsudaira, Masashi Wada, Satoshi Kitaoka
Session ID: 2O09
Published: 2011
Released on J-STAGE: September 30, 2011
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Noppasint Jiraborvornpongsa, Masamitsu Imai, Katsumi Yoshida, Wasana K ...
Session ID: 2O17
Published: 2011
Released on J-STAGE: September 30, 2011
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A very small amount (0.035, 0.1, 0.2 wt%) of β-SiC/SiO
2 core-shell nanowires (SiCNWs) were mixed with alumina powder, followed by hot-pressing at 1400
oC in argon atmosphere with 85 MPa applied pressure. Alumina specimens containing SiC nanopowder were also prepared for comparison. Full-dense specimens were obtained. Hardness was increased by 18% with decreasing grain sizes of alumina matrix composite. SiCNWs-contained specimens showed higher thermal conductivity than SiC nanopowder-contained ones. Furthermore, microstructure and SiCNWs distribution were observed by electron microscope, and fracture toughness of composites measured by indentation fracture method was also evaluated.
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Yuka UMEHARA, Takashi AKATSU, Yutaka SHINODA, Fumihiro WAKAI
Session ID: 2O18
Published: 2011
Released on J-STAGE: September 30, 2011
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Naoki Ueda, Tomohiko Yamakami, Tomohiro Yamaguchi, Morinobu Endo, Naot ...
Session ID: 2O19
Published: 2011
Released on J-STAGE: September 30, 2011
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RYO INOUE, HIDEKI KAKISAWA, YUTAKA KAGAWA
Session ID: 2O20
Published: 2011
Released on J-STAGE: September 30, 2011
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Carbon fiber reinforced SiC matrix hybrid material has been expected as wear component because of its high specific stiffness, specific strength and wear resistance. In order to apply this material to brake disc, understanding of damage evolution behavior is necessary for safety application. In the present study, disc compression test of notched specimen was done. Based on the experimental results, the effect of stress concentration and loading mode on fracture behavior of this material under mode_I_and mode_I_+_II_mixed mode loading was discussed.
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Shuqi GUO, Toshiyuki Nishimura, Koji ENOMOTO, Shinichiro Aonuma, Yutak ...
Session ID: 2O21
Published: 2011
Released on J-STAGE: September 30, 2011
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Koichi Machida, Shinichiro Aonuma, Takao Horiya, Shuqi Guo, Yutaka Kag ...
Session ID: 2O22
Published: 2011
Released on J-STAGE: September 30, 2011
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Katsumi Yoshida, Yuji Aoyagi, Hiroyuki Akimoto, Toyohiko Yano, Masaki ...
Session ID: 2O23
Published: 2011
Released on J-STAGE: September 30, 2011
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In this study, electrophoretic deposition (EPD) method was used to control the interface between fiber and matrix for uni-directional SiC
f/SiC composites, and their mechanical properties were evaluated at room temperature. Relatively homogeneous carbon coating was successfully formed on not only crystalline SiC fibers but also amorphous SiC fibers by EPD method, and the amount of carbon on the fibers depended on the concentration of carbon suspension and EPD time. In the case of 0.3 wt% carbon suspension for EPD, the thickness of carbon coating on crystalline SiC fibers was 80-400 nm, and the SiC
f/SiC composites using the crystalline SiC fibers fractured in pseudo-ductile manner with large amount of fiber pull-out.
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TATSUYA HINOKI, KOSHI ADACHI, YOUNGJU LEE, KOUKI KANDA, KOUJI NOGUCHI
Session ID: 2O24
Published: 2011
Released on J-STAGE: September 30, 2011
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Yutaka Shinoda, Yoshikazu Suzuki
Session ID: 2O25
Published: 2011
Released on J-STAGE: September 30, 2011
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Masashi Wada, Kazumi Kashiwagi, Satoshi Kitaoka
Session ID: 2O26
Published: 2011
Released on J-STAGE: September 30, 2011
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Wubian Tian, Hideki Kita, Hideki Hyuga, Naoki Kondo
Session ID: 2O27
Published: 2011
Released on J-STAGE: September 30, 2011
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SiC ceramics were successfully joined by Al infiltrated TiC tapes at 900-1100 degree C for 0.5-2 h in vacuum. Phase constituents, microstructure and mechanical strength of the prepared SiC joints were characterized. The prepared SiC joints display dense interlayer and crack-free interface. The interlayer primarily consists of TiC and Al phases, together with small amount of TiAl3 and trace of Al4C3. With increasing the joining temperature or time, the interface layer either thickens or grows to multiple layers. The bending strengths of the SiC joints are higher than 190 MPa as bonded at present conditions, and are closely related with the property of interface and interlayer.
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Shigeru Nishio
Session ID: 2P001
Published: 2011
Released on J-STAGE: September 30, 2011
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It has been believed that structure of V
2O
5⋅
nH
2O on silica gradually changes from isolated form to stacked form after polymerization. This structural rearrangement model, however, has not yet been confirmed. In order to confirm this model, in-situ Raman spectrometry of V
2O
5⋅
nH
2O after polymerization on silica was performed. Detailed spectral analysis revealed that standing after polymerization promotes stacking of V
2O
5⋅
nH
2O. This strongly supports the structural rearrangement model of V
2O
5⋅
nH
2O previously proposed.
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Shigeru Nishio
Session ID: 2P002
Published: 2011
Released on J-STAGE: September 30, 2011
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LabVIEW-based automatic repeatability measurement system for humidity indicator materials was built, where heaters, MFCs, valves, RH-sensors, VIS spectrometer, and USB-camera are integrated.100 times automatic coloration-discoloration cycle test over one week on vanadia-loaded porous amorphous silica moisture indicator was successfully made with this system.
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Norio YAMAGUCHI, Masaaki KOHNO, Koichi TAKEUCHI
Session ID: 2P003
Published: 2011
Released on J-STAGE: September 30, 2011
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