Materials Literature
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Copper interconnects in semiconductor devices has a risk of mechanical fracture along with the trend of further integration and miniaturization, because of many weak interfaces stacked to compose multilayered copper/dielectric systems. Recent reports suggest that local adhesion strength of those interfaces varies sign…
Tema završnog rada je „Uporaba ugljičnih vlakana u kompozitima". U ovom radu se opisuje razvoj ugljičnih vlakana od kraja 19. stoljeća do današnjih dana. Prikazane su metode izrade ugljičnih vlakana i dana je usporedba ugljičnih vlakana sa drugim vlaknastim ojačalima. Navedene su najvažnije prednosti i nedostaci primj…
The gamma fiber texture of Nickel-Titanium shape memory alloy cold-drawn wire was measured by XRD and EBSD. The latter method determined the crystallographic orientations of grains over 600, each of which axis was plotted on a standard stereographic triangle. Calculated transformation strains along the wire axis in ea…
半導体集積回路(LSI)の中にはSi酸化膜/Si基板構造が多く存在する.さらにLSIの微細化,高性能化を目的として,LSI製造工程では様々な金属が用いられ始めている.しかし,意図しない金属汚染はデバイスの信頼性に悪影響を与える.本研究では,SiO_2/Si界面構造モデルを用い,金属原子(Cr,Fe,Ni,Cu,W)の安定性と拡散挙動について第一原理計算により明らかにすることを目的としている,その結果,サイズの大きい金属原子は酸化膜内部に入りにくいことや,いずれの金属原子も界面近傍でトラップされることなどがわかった.また,Si窒化膜/Si基板構造の結果との比較も行い,金属挙動の膜種依存性についても議論した.
The Japan Soclety of Mechanlcal Englneers 903
Inhibition and adsorption potentials of ampicillin for the corrosion of mild steel in solutions of HCl have been investigated using empirical and computational approach. The experimental study was carried out using gravimetric and Fourier transform infrared spectroscopy methods of monitoring corrosion while the comput…
Electrolyte membranes are chemically degraded by H_2O_2 which are created during operation of the polymer electrolyte fuel cell (PEFC). In this study, the correlation between the mechanical properties and the chemical degradation of the electrolyte membrane for PEFC was investigated. In order to investigate the mechan…
Improvement of catheter tacti e sensor composed of organic
To investigate the creep crack growth properties of aluminum (Al) nano-films deposited by electron-beam evaporation, creep crack growth experiments for freestanding 356 nm- and 139 nm-thick film specimens with a center notch or a single edge notch were conducted. In both Al films, a creep crack stably propagated at fi…
It was well known that commercial AZ series Mg alloy show the easily ignition at low temperature comparison with Ca added Mg alloys. While magnesium alloys have long been drawing strong interest as the lightest structural materials available, their application has been limited mostly to die casting parts. The request…
Lanthanum (La) doping porous Silica (Si) material for adsorption of carbon dioxide (CO_2) was synthesized by a precursor solution method accessed the adsorption properties, and studied the relation between the microstructure and CO_2 adsorption properties by transmission electron microscopy (TEM), X-ray diffraction (X…
The experimental technique for the investigation of thermal shock fracture of ceramics under various stress ratios was developed. In order to determine the testing configurations, the thermal stress field in specimen was analyzed using FEM. It was found that the ellipse specimen and cooling rod with the specific aspec…
The stress and temperature of ultraviolet (UV) curable resin during curing were measured using a simultaneous measurement system of stress and temperature and their relationship was investigated. The specimen consisted of a mold and UV-curable rein in liquid form. The mold consisted of glass plates, acryl plates and a…
The description of the methodology for determining of limit height drop fall, at which there isn’t volume discontinuity of liquid heating surface, and a comparison of the experimental and calculated limit height fall values are observed.
In this research the effect of cerium (III) chloride heptahydrate (CC) and sodium gluconate (SG) on the corrosion inhibition of carbon steels C45 (1531) and DIN RSt 37-2 (0361) in chloride environments has been evaluated using Tafel polarization technique, EIS method and weight loss measurements. Experiments were perf…
In the automotive and many other industries widely used high-strength bolted connections, which are one of the most popular types of machinery parts. The paper studies the strength and plastic properties of the original hot-rolled steel for cold forming metal wares and studied the stability of austenite steel 40X in a…
This publication presents the results of study of acute and subacute toxicity of the tsistanhe extract at enteral way of introduction. No any toxic effects were revealed at enteral introduction in the experiment, which allow us to recommend it for further in-depth research of pharmacological activity
Mg -Li
CFRP(Carbon Fiber Reinforced Plastic) is widely used for airplane, automobile and general machinery because of its high specific strength and modulus of elasticity. CFRTP(Carbon Fiber Reinforced Thermo-Plastic) is especially attracting the attention of the viewpoint of recycling and molding speed. In machining of CFRT…
We have attempted to construct multiscale model which can simulate inelastic deformation and stress state under operating conditions. It would need to the information about mechanical properties of solid oxide fuel cell constituent materials under operating condition for analysis model building up process and simulati…