Materials Literature
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POFs (polymer optical fibers) gradually replace traditional communication media such as copper and glass within short distance communication systems. Primarily, this is due to their cost-effectiveness and easy handling. POFs are used in various fields of optical communication, e.g. the automotive sector or in-house co…
The structure of the Mo-Re alloys containing 30-85 mass % Mo, obtained from the powders of pure metals by pressure sintering, was investigated. Conditions for the formation of the and phases, which deteriorate properties of these alloys, have been determined.
AgInSe2(AlSe) thin films grown with chalcopyrite type tetragonal structure using a procedure based on the co-evaporation of their precursors in a two stage process, were electrically and morphologically characterized. The effect of the evaporated mass of Ag to evaporated mass of In (mAg/mln) ratio on the electrical an…
The apparent viscosities of semi-solid Mg2Si/AM60 magnesium matrix composites at steady state were tested.. The results show that the apparent viscosities of semi-solid Mg2Si/AM60 magnesium matrix composites at steady state increase with increasing solid fraction fα-Mgand volume fraction of Mg2Si fMg2Siand decrease wi…
GdBa 2 Cu 3 O 7 thin films were deposited on single crystalline LaAlO 3 (100) substrates by pulsed laser deposition (PLD) in on-axis geometry. The deposition parameters temperature, laser repetition rate and oxygen partial pressure were optimized with respect to critical temperature T c and self-field critical current…
We grew CsLiB6O10 (CLBO) crystals in a dry atmosphere to obtain high-quality crystals that include less water as an impurity. We estimated the level of water impurity in the crystals using a nonpolarized Fourier transform infrared spectrometer and also measured bulk laser damage resistance using a 266 nm high-repetiti…
Abstract This work presents the results of the attachment of Qdot 655 ITK TM amino (PEG) quantum dots (QDs) (Invitrogen) and CdTe QDs (provided by Institute of Materials Science, VAST) to HER2 (Human Epidermal growth factor Receptor 2) specific phage antibodies (Abs) (provided by Institute of Biotechnology, VAST) in s…
High efficiency CuIn1-xGaxSe2(CIGS) thin film solar cells are produced by two-stage or three-stage co-evaporation processes. Both of these methods involve a Cu-rich to Cu-poor transition. One way to control the Cu-rich to Cu-poor transition is the so-called end point detection (EPD), which monitors the change of emiss…
Acute toxicity of different sized (10, 30 and lOOnm) ZnO particles was investigated by intratracheal injection at the dose of 0.05 and 0.5g/kg body weight. The results of biochemical parameters assay, pathological examination and zinc accumulation showed main target organs for ZnO particles are demonstrated as lung, s…
The transverse modulus of a rubber cord is experimentally determined. It is shown that, in the framework of the effective layer model, it is problematic to find both the bending stiffness and the lateral compression stiffness with equal adequacy.
A Charge-Trap Memory Device with a Composition-Modulated Zr-Silicate High-k Dielectric Multilayer Structure, Lv Shi-Cheng, Ge Zhong-Yang, Zhou Yue, Xu Bo, Gao Li-Gang, Yin Jiang, Xia Yi-Dong, Liu Zhi-Guo
One of the most promising applications of MFC is to use them treating organic wastes while accomplishing power generation. In this study, the effects of different electrode sizes on electricity generation performance and COD removal were investigated in dual chambered MFC. It was found that the maximum power density o…
Abstract Die gestiegenen Anforderungen an hochbeanspruchte Bauteilkomponenten hinsichtlich Beständigkeit gegen thermische, oxidierende und korrosive Beanspruchungen, Härte sowie Verschleißbeständigkeit prädestinieren den Einsatz von ingenieurkeramischen Werkstoffen. Dem gegenüber stehen Eigenschaften wie hohe Sprödigk…
State-of-the-art solar cells based on thin film silicon make use of random textures for absorption enhancement; in the past, the development of these textures was carried out empirically, and in most applications this is still the case. Attempts to understand light scattering at the internal interfaces rely on quantit…
비선형 초음파는 선형 초음파와 비교하였을 때 재료의 물성 변화에 민감하게 반응한다. 이 연구의 목표는 비선형 요소를 포함하여 열처리 조건과 초음파 비선형성의 상관관계를 알아내는 것이다. 본 연구에서 기존의 방법과는 다른 수정된 초음파속도계산 식이 새롭게 제안되었다. 이것은 열처리된 재질에서 초음파 속도변화가 재료의 비선형성 때문에 발생하는 것을 찾아내었다. 실험을 통하여 수정된 초음파 속도와 1차 조화 및 2차 조화파의 진폭 비율이 서로 동일한 경향을 보이는 것을 알아냈다. 그리고 수정된 초음파속도식을 통해 계산된 상대적인 비선형계수는 기존의 방법을 이용하였을 때보…
The growth of hydrogenated silicon germanium alloy (Si1−xGex:H) films by plasma enhanced chemical vapor deposition (PECVD) has been investigated using real time spectroscopic ellipsometry (RTSE) to understand the effect of incorporated Ge on the relationship between the evolution of microcrystallinity and the optical…
Kinetics of deformation induced martensitic transformation in metastable austenitic AISI 301 steel was characterized by several techniques including classical light metallography, X-ray diffraction, neutron diffraction and electron back scattered diffraction. In order to characterize the martensitic transformation, se…
In the present work, an elemental powder mixture of Al60Fe20Ti15Ni5 (at.%) was mechanically alloyed in a high-energy ball mill. The phase transformations occurring in the material during milling were studied with the use of X-ray diffraction. The results obtained show that an amorphous phase was formed during performe…
Increasing the amount of light that reaches the cell is one approach to improved photovoltaic (PV) module efficiency. In current designs using weathering layers of glass or poly(co- ethylene-tetrafluoroethylene) (Teflon® ETFE), some light is lost due to reflection and scattering due to haze. Teflon® FEP, poly(co- tetr…
The lack of the transformer community to accept the fact that transformers are chemical reactors that follow the laws of both physics and chemistry has lead to the creation of many misunderstandings with regards to transformer condition assessment and also is the reason why understanding the corrosive sulfur problem h…