Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract Im Rahmen dieser Arbeit sollten verschiedene Moglichkeiten untersucht werden, Salene in metallorganischen Gerustverbindungen zu immobilisieren. Dazu wurde auf bekannte Methoden der Immobilisierung in Zeolithen und mesoporosen Materialien zuruckgegriffen und gegebenenfalls modifiziert. Zu den ausgewahlten meta…
Exhaust gas of internal combustion engine contains carbon-oxide and hydrocarbon. The temperature of these gases which are emitted in atmosphere are higher than 873 K. In the environment under the high-temperature gas. Reforming of Steam Methane Reforming, Water-Gas Shift Reaction and Carbon Precipitation are expected…
Nanostructure has been introduced into thermoelectric (TE) field. And high performance TE devices with nanostructure have been reported. Furthermore, Bismuth Telluride (Bi_2Te_3), one of TE materials, has been studied long time and shown the highest efficiency around room temperature. Therefore, it should be expected…
グラフェンシートの平面に対して垂直にカーボンナノチューブ(CNT)を接合したピラードグラフェンナノ構造体は,電子デバイスなどへの応用が三期待されている.本研究では,シミュレーションモデルとして,ピラードグラフェンナノ構造体とCNTを作成し,CNT軸方向の熱伝導率の計算を行った.ピラードグラフェンナノ構造体のCNT軸方向の熱伝導率は,グラフェンシート平面の影響により大きく低下した.この熱伝導率低下は,グラフェンシートとCNTの結合部の不整合の影響に加え,熱がグラフェン面内に拡散されることによる.
Walking machines with cyclic propellers are considered. Program movement of the machine and its propellers, providing a minimum of jet power is synthesized.
In this study, tensile strength and fracture toughness of plant-short-fiber reinforced PLA (poly (lactic acid)) were experimentally evaluated. Interfacial shear strength between the plant fibers and the matrix resin was also obtained by means of the microbond test. Kenaf bast fibers were used as one of the typical pla…
In this study, PM aggregation technology in high humidity field was attempted by means of water-mist addition. PM exhausting from a laminar diffusion flame formed on a small pool of benzene (C_6H_6) was used for test sample. Water mist of which peak diameter was around 10 micro-meters was co-flowed and mixed with burn…
Development of a method
The Japan Soclety of Mechanlcal Englneers GS -4
C_<60>-C_<70> two-component fullerene needle-like crystals were synthesized by liquid-liquid interfacial precipitation method. The fullerene needle-like crystals were fractured by a focused ion beam system (FIB) so that the Ga ion beams do not affect the fracture surfaces. The fullerene needle-like crystals were found…
A compatible-symmetric-type bicyrystal model and incompatible-type bicrystal models having inclined grain boundary were employed to conduct crystal plasticity analysis of unidirectional tensile tests, and we investigated changes in patterns of Geometrically Necessary dislocation (GND) bands when nominal strain was 1 %…
Three cationic gemini surfactants of the type N2,N3-dialkyl-N2,N2,N3,N3- tetramethylbutane diamminium bromide namely Ia, Ib and Ic have been synthesized. Their chemical structures were elucidated by the routine methodologies 1H-NMR, elemental analysis and mass spectroscopy. The surface active properties were examined…
Effects of variable fatigue loading with alternate R-ratios on fatigue life of a quasi-isotropic woven fabric CFRP laminate have been studied. Variable R-ratio fatigue tests are carried out in which the stress ratio of fatigue loading alternates between two values that are associated with the same number of cycles to…
Long term durability of solid oxide fuel cell (SOFC) is one of the critical problems to be solved. Thermal stress has severe impact to SOFC electrolyte and electrode which is made from dense or porous ceramics. SOFC stack has much more risk to lead thermal crack by inhomogeneous temperature distribution due to the sta…
The competition between crack self-healing and crack propagation induced by service stress in self-healing materials was investigated in the present study. Especially, it was succeeded that assessment on the displacement at the three-point bending load allows the time which crack propagation is arrested by self-healin…
This paper discusses the electrode wear in electrical discharge machining (EDM) of carbon fiber reinforced plastics (CFRP) in order to clarify the mechanism of low electrode wear. Sinking EDM of CFRP using EDM oil or deionized water was carried out, and the electrode wear rate and the waveform of discharge current wer…
The increment of cutting speed, which works for a high-efficient mechanical processing, causes the increment of cutting temperature. The cutting temperature increment promotes the occurrence of thermochemical wear, and it causes the growth of tool wear. Therefore, in general cases, the cutting speed should be maintain…
The solid oxide fun cells are most efficient in a fuel cell. The gas discharged from the fuel cell can improve the efficiency due to contain an unburnt fuel. This paper discusses system feasibility for the unburnt fuel recirculation by using the ejector. We designed the ejector for suctioning unburnt fuels, and produc…
This paper discusses a melt infiltration method to introduce HfC or ZrC into carbon-fiber-reinforced carbon matrix (C/C) composites. In order to form HfC or ZrC in the porosities of C/C composites, molten HfSi_2 and Zr-10at.%Si alloy were infiltrated. The MI treatments of HfSi_2 and Zr-10at.%Si alloy were conducted by…
Trenden i byggbranschen är att efterfrågan på täta, energisnåla byggnader ökar. Passivhus och andra lågenergikonstruktioner blir vanligare och vanligare. Riskerna med att bygga in organiskt material som trä i dessa konstruktioner har fått branschen att börja titta på alternativa material. Lättbetong är ett material so…