Materials Literature
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Here we review our work on incorporating high refractive index inorganic materials into microstructures by two-photon lithography. We describe the direct writing of silver microstructures from dispersions of silver salt solutions, as well as the fabrication of silver nanoparticle embedded microstructures by a combinat…
The heat capacity of GdMeFe2O5(Me — Li, Na, K, Cs) is investigated within the temperature range of 298.15–673 K by a calorimetric method. λ-points are revealed in the C ○ (T) curves at 448 K and 598 K in GdLiFe2O5, at 473 K and 573 K in GdNaFe2O5, at 448 K and 598 K in GdKFe2O5, and at 448 in GdCsFe2O5 related to a ph…
To fabricate a heterostructure solar cell using environmentally friendly materials and low cost techniques, tin oxide (SnO2) and cuprous oxide (Cu2O) were deposited by the sol-gel method and the electrochemical deposition, respectively. The SnO2 films were deposited from a SnCl2 solution containing ethanol and acetic…
Southern Company and Mitsubishi Heavy Industries Ltd. (MHI) successfully started the world's largest (500 metric TPD) carbon capture plant MHI's KM-CDR ® on a coal-fired power plant in June 2011 at Alabama Power's Plant Barry. The captured CO 2 is transported via pipeline approximately 12 miles to Citronelle oil field…
Pure gallium metal and many gallium based alloys and intermetallic compounds have extensive technological applications and fundamental interest. Gallium is used as a doping component in electronic devices (as in transistors or photovoltaic cells) [1]. The development of multi-alloy material depends nowfor most of them…
Knowledge of the band gap and transmission and reflection spectrum of a photonic crystal is essential elements for their design. A graphical interface that quickly determines the banding pattern and spectrum based on the Plane Wave Method (PWM) and coupled modes method (CMM) respectively is created. It is used to expl…
Scheme of pseudo elastic cyclic deformation of Ti49,4Ni50,6 wire (Ms=0±2oC) in 18-70оС temperature range included loading up to 4,3% elongation and unloading. It was shown that the parameters of the strain/stress patterns are strongly resulting from numbers of preliminary deformation cycles. Preliminary deformation cy…
Bismuth (Bi) and lanthanum (La) doped lead manganese antimoine zirconate titanate (PZMST) ceramic powders have been synthesized by high temperature solid-state reaction method. Preliminary X-ray structural analysis of the compounds shows the formation of tetragonal structure. Scanning electron micrographs (SEM) shows…
High transparency and low resistivity aluminum doped zinc oxide (AZO) films was investigated by direct current magnetic controlled sputtering with different oxygen flow rates. The resistivity obtained can be as lower than 3.7×10-4 Ω cm which is quite good for solar cell application and flat panel display. Although the…
Electrical conductivity and tensile strength of Cu–0.22 wt.%Cr–0.05 wt.% Zr–0.05 wt.% Zn alloy were investigated after cold working and aging treatment. The results show that good combination of the physical and mechanical properties can be obtained after solid solution at 940°C for 1h and aging at 450°C for 2h. Aging…
The preparation of Os2(TiPB)4Cl2 (1; TiPB = 2,4,6-triisopropylbenzoate) and Os2(TiPB)2(OAc)2Cl2 (2) by carboxylate exchange reactions with Os2(OAc)4Cl2 is reported. The structure of 1 has been determined by single-crystal X-ray studies, and shows a paddlewheel arrangement of the ligands about the triply bonded diosmiu…
Abstract The thin-film Cu-chalcopyrite based solar cell technologies become more attractive due to their lower cost and optimal performance. Efficiency of cells with a large area might be maintained if small segments are interconnected in series in order to reduce photocurrent in thin films and resistance losses, and…
본 연구에서는 가스터빈 연소기에 적용하기 위한 예혼합 스월버너의 배기가스 및 화염안정성 최적화를 위하여 버너의 구조변경에 따른 연소특성을 실험적으로 분석하였다. 버너의 연료분사구조에 따른 배기가스 배출 특성을 파악하고자 단일연료분사구조와 이중연료분사구조를 갖는 예혼합 버너의 연소특성을 비교 분석하였으며 이중연료분사구조 적용 시 연료/공기 혼합특성이 향상되어 CO와 NOx의 배출농도가 감소하는 경향을 나타내었다. 또한, 노즐출구와 라이너의 지름 비(confined ratio)에 따른 연소부하 및 배기가스 특성을 분석한 결과 confined ratio 감소 시 연소부하…
In order to help maintain soil fertility, a national survey was conducted in Japan, beginning in 1979. Both soil samples and questionnaires given to farmers on agricultural management were collected. By using the dataset, we described the long-term application rates of on-farm organic amendments (which we denote as OA…
In order to promote our understanding on electronic structure of actinide dioxides, we construct a tight-binding model composed of actinide 5f and oxygen 2p electrons, which is called f-p model. After the diagonalization of the f-p model, we compare the eigen-energies in the first Brillouin zone with the results of re…
A database of published L-subshell X-ray production cross sections due to the impact of 4He+ ions on several elements is compiled. In order to evaluate the data, they are compared with theoretical calculations using the ECPSSR theory (which modifies the Plane Wave Born Approximation) and its corrections, such as Multi…
We have already proposed the fatigue evaluation method for the metallic material by measuring an inductance of a pancake-type coil using a LCR meter. This method was called the inductance method. This time, we have improved the conventional inductance method by using a low excitation frequency under a dc magnetic fiel…
Water absorption and surface blistering behaviour was studied for polyester-matrix laminates with SiO 2 nanoparticle reinforced gel coats. Accelerated water immersion tests at 37C showed that addition of 10% nanoparticles increases blisters incubation time by ca. 50% compared to 5% and 0% nanoparticles composites.
Si nanocrystals (Si-ncs) were prepared from n-type Si (100) wafers by using high-current pulsed electron beam irradiation in vacuum. High density (9.7 × 1014 cm−2) ultrafine Si-ncs (∼3 nm) embedded in amorphous Si layers (∼60 nm) exhibit blue photoluminescence emission at room temperature which can be attributed to th…
Le soudage homogène (métal d'apport identique au métal de base) de l'alliage d'aluminium 6061 avec un procédé dit semi-automatique (MIG) n'a jamais été reporté jusqu'à maintenant dans la littérature. Nous montrons ici que l'utilisation d'un dérivé du procédé de soudage MIG, le MIG CMT (Cold Metal Transfer) permet d'ob…