Materials Literature
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Article Crystal structure of tetrasodium heptaammonium molybdate tridecahydrate, Na4(NH4)7(Mo14O48) · 13H2O was published on March 1, 2010 in the journal Zeitschrift für Kristallographie - New Crystal Structures (volume 225, issue 1).
Fe20Ni3Mn alloy is treated by LSP. The hardness, residual stress and microstructure in the strengthened zone are studied. The results show that the hardness of the strengthened surface is increased about 15% and the surface compressive residual stress is reached about -469MPa. There exist martensite transformation and…
The aim of the project is to study the interlaminar fracture toughness, GIC of woven silk reinforced epoxy composite. Silk fibre has been treated with silane coupling agent and the silk/epoxy composites has been fabricated with different number of silk fibre layers. The processing technique used to prepare the sample…
본 연구에서는 경사충돌시 피닝잔류응력 평가를 위해 3 차원 유한요소해석모델을 제안한다. 단일경사 충돌 해석모델을 이용해 Rayleigh 재료감쇠, 동적마찰 그리고 재료의 변형률 속도에 대한 영향을 알아 보고 이를 통합하여 피닝잔류응력 유일해를 얻는다. 숏볼은 변형을 고려한 소성숏을 포함한 해석 모델이며, 다중숏 경사충돌해석으로 확장한다. 다중경사충돌 해석모델은 단일경사충돌 연구를 통해 결정된 통합된 피닝인자들을 반영했고, 숏볼은 소성숏을 사용하였다. XRD 실험해와 비교시, 강체 및 탄성숏 해석모델에서 얻어진 해석해에 비해 소성숏 모델의 해석해가 실험해에 매우 근접…
The optical-grade diamond film was prepared by DC plasma jet CVD method, and a double-sided polishing was made by EDM and mechanical polishing technology. The investigations of the internal stress at different temperature on the infrared transmission were tested in detail. SEM and AFM were used to study the polished s…
AlN powders by the chemical vapor synthesis (CVS) process in the AlCl3-NH3-N2-H2 system were successfully synthesized. Gasified AlCl3 as a starting material was generated by pre-heating system and transported to the tube furnace in NH3-N2-H2 atmosphere. High crystalline AlN was synthesized at over 900°C. The average p…
The AZ31 magnesium alloy tube was used for electromagnetic forming experiment of three kinds of input voltages. The stress-strain state of tube forming was analyzed. It was shown that the cause of oblique crack of tube was of axial inhomogeneous distribution and , and the cause of longitudinal crack was and of inhomog…
The influence of N -(2-carboethoxyethene)- N -(2-carbobuthoxyethyl)methylamine on the process of hydrogen penetration in steel (St.3) in a hydrosulfuric medium was studied.
A theoretical study is presented herein on the penetration of the laminated composite aluminum alloy foam target struck normally by conical-nosed projectiles. Two layers were arranged according to the density of the respective foam; configuration 1 consisted of 10mm/semi-infinite continuous foams and configuration 2 c…
Pb(Zr0.95Ti0.05)O3 powders were prepared by one-step pyrolysis process from non-aqueous Pechini method. Porous Pb(Zr0.95Ti0.05)O3 ceramics were obtained by sintering the chemically prepared powders and the grain growth in the porous ceramics was investigated. For the powders calcined at 450 °C for 10 h by one-step pyr…
Article Crystal structure of μ-13,27-di-tert-butyl-3,6,9,17,20,23-hexaazatricyclo- [23,3,1,111,15]triaconta-1(28),11,13,15 (30),25,26-hexaene-29,30- diolato[k5N3,N6,N9,O29,O30:k5N17,N20,N23,O29,O30]bis(thiocyanato-kN)- cobalt(II)—methanol (1:2), Co2(C32H52N6O2)(NCS)2 · 2CH3OH was published on March 1, 2010 in the jour…
Ziele: Untersuchung der klinischen Durchführbarkeit von Dual-Energy-Computertomographien (DECT) bei Patienten mit pulmonalen Rundherden. Methode: Kontrasmittelunterstützte DECT mit arterieller und spätvenöser Kontrastierung (180 s.) wurden bei 25 Patienten (14Männer, 11 Frauen, Durchschnittsalter 59 Jahre ±11) durchge…
Bildgestützte Radiofrequenzablation (RFA) nimmt als minimal-invasives Verfahren eine gewichtige Stellung in der Behandlung nicht resektabler Tumore ein. Gezeigt wird der Softwareprototyp MeVisSAFIR, der entwickelt wurde, um den Ablauf einer RFA unter Berücksichtigung der speziellen Anforderungen der klinischen Routine…
The ZnO films were deposited on quartz glass substrate by RF magnetron sputtering. The ZnO films are highly c-axis oriented with the (002) plane parallel to the substrate. The grains size estimated by the XRD diffraction rises with increase in the Ar/O2 ratio. The optical absorption edge and the near absorption edge c…
In existing models for single bubble dynamics it is necessary to account for radiation damping, a consequence of fluid compressibility. A similar correction is necessary when modeling systems of coupled bubbles. The coupling alters the collective dynamics and therefore the acoustic power radiated. In the linear approx…
Basic research in actinide chemistry and physics is indispensable to maintain sustainable development of innovative nuclear technology. Actinides, especially minor actinides of americium and curium, need to be handled in special facilities with containment and radiation shields. To promote and facilitate actinide rese…
A novel nano-iron particulate reinforced polymer-based composite material against electromagnetic pollution was prepared for household appliances. The attenuation, permittivity and various absorbing aspects of the composite materials were investigated. Results indicated that the composite materials exhibit promising e…
Thin polymer films in the presence of high electric fields undergo partial discharge and have characteristic acoustic emissions. It is hoped that studying these acoustic signals can aid in anticipating failure of the films, thereby providing a tripwire to reduce the electric voltage in high-energy capacitor applicatio…
The goal of this study is the complete simulation of the structural and the functional components of the extra-cellular matrix using semi-synthetic polysaccharides for tissue engineering applications.
Two novel ion-pair complexes, [IBzPy][Ni(Bdt) 2 ] ( I ) and [IBzDMPy][Ni(Bdt) 2 ] ( II ) (IBzPy = 1-(4-iodobenzyl)pyridinium, IBzDMPy = 1-(4-iodobenzyl)-3,5-dimethyl-pyridinium, and Bdt = benzene-1,2-dithiolate), have been synthesized and characterized by elemental analysis, IR, cyclic voltammetry, and X-ray single-cr…