Materials Literature
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In this study, photoconductive detector of nanowire-based devices have been fabricated by aligning ZnO nanowires across paired Au electrodes using dielectrophoresis. The Ag nanoparticle (NP) decoration as an effective way to enhance the maximum responsivity, and cut down the response time of the traditional region ZnO…
One of the most significant current discussions in insulation materials is the influence of space charge on electrical ageing processes. The space charge observed under both dc and ac high voltage makes the role of space charge in electrical ageing increasingly difficult to ignore. A considerable amount of literature…
One or a series of continuous stirred tank reactors (CSTR) is adopted in material engineering. The first esterification reactor and the final stage polyeondensation reactor are very significant，which operation affect the quality of output directly. The influence of operational variables is discussed separately. Toward…
Using FX-4000 strain unit, the apoptosis of Human oral Squamous Cell Carcinoma KB Cells that underwent different mechanical strain were studied. Flow Cytometer was adopted to investigate the apoptosis of Human oral Squamous Cell Carcinoma KB Cells. Experimental results indicated that cell apoptosis rate increased sign…
The research and development of new VUV scintillators includes also LuLiF4 single crystals doped by${\hbox{Nd}}^{3+}$. Due to their lower light yield, the${\hbox{Gd}}^{3+}$codoping is studied as a tool to improve an energy transfer from the host to${\hbox{Nd}}^{3+}$emission centers and increase the light yield consequ…
We evaluated the photodetection properties and external quantum efficiency of graphene-silicon Schottky photodetector under IR illumination for 700 nm, 1.1 μm, 2 μm, and 3.5 μm wavelengths at room temperature. The graphene-Si Schottky diode has been fabricated by depositing mechanically exfoliated HOPG on top of the p…
Al-doped TiO2thin films grown on Si(100) by atomic layer deposition has been investigated as a potential high dielectric constant insulator in the application of microelectronics. The film thickness is determined by spectroscopy ellipsometry and transmission electron microscopy. X-ray photoelectron spectrometry is use…
The finite element method (FEM) was used to simulate the sliding wear progress. The stress field and strain field of Cr-Mo-Cu alloy cast iron with nano-additives under wear abrasion were analyzed through experiment and numerical investigation in this paper. And then the wear depth was got by calculation for different…
Abstract Die Schichtabscheidung über Magnetronsputtern ist Bestandteil wichtiger Prozessschritte bei der Herstellung von CIGS‐Dünnschicht Photovoltaikmodulen. Diese basieren auf dem Halbleiter Cu(In, Ga)Se2 und erfordern einen Rückkontakt aus Molybdän. Herstellung und Anwendung von Sputtertargets aus Molybdän, MoNa un…
For the last 100 years ASTM Committee C07 (Lime) has provided guidance to the lime industry and its customers related to the methods of testing and specifications for limestone and lime products and their applications. A broad range of lime user, producer, and general interest input was provided and refined through a…
The piston is one of the major components of the motor fuel that serves as a component of the intake air pressure and the recipient of the combustion pressure in the combustion chamber. This component is designed to be lightweight and resistant to pressure. In addition to the selection of appropriate materials, select…
As the increase of concern for global warming, high volume mineral admixtures(HVMA) concrete for the reduction of carbon dioxide which is occurred production of cement has low cement, it is reported that use of inorganic activators for increase of compressive strength. As use of high content of mineral admixtures, sin…
Elektroplating adalah proses untuk melindungi logam dari pengaruh lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi larutan dan arus listrik terhadap ketebalan lapisan nikel. \n\tPada penelitian ini variable bebasnya adalah arus listrik dan konsentrasi larutan. Arus listrik divariasikan 50, 55…
본 연구에서는 새로운 알루미늄 유도 결정화 공정을 제안하였다. 알루미늄 박막에 직접 3 A 의 정전류를 인가하여 1 cm × 1 cm 넓이의 두께 200 nm 비정질 실리콘 박막을 수십 초 내에 결정화하는 방법이다. 결정화된 다결정 실리콘 박막은 520 cm -1 에서의 라만 분광 피크를 통해 확인할 수 있었다. 공정후, 알루미늄이 식각된 다결정 실리콘 박막은 다공성 구조임을 SEM 을 통하여 확인할 수 있었다. 또한, 이차이온질량분석(secondary ion mass spectroscopy)에서 알루미늄 농도가 10 21 cm -3 으로 헤비 도핑된 것을 확인 할…
Abstract : The dynamically evolving needs of the U.S. soldier in the battlefield in response to changes in the technology of warfare and associated threats require advances in multiple areas including biomedical diagnostics, chemical sensing, communication technology, efficient power generation without increased paylo…
Biodegradation is the chemical degradation of materials brought\nabout by the action of naturally occurring microorganisms. Biodegradation\nis a relatively rapid process under suitable conditions of moisture, temperature\nand oxygen availability. The logic behind blending biopolymers such as starch\nwith inert polymer…
Phthalate plasticizers are regulated by RoHS, REACH and CPSC as hazardous substances. Responding to these international environmental restrictions, we developed ABS certified reference material (CRM) for determination of phthalate plasticizers such as DMP, DEP, DBP, BBP, DEHP and DnOP. The candidate material has been…
The hetero junction on dielectrics and ferrite for LTCC was prepared by using NiCuZn ferrite. The shrinkage behaviour of ferrite tapes in combination with a dielectric tape was investigated. The characteristics of NiCuZn ferrite were investigated using XRD (X-ray diffractometer), Dilatometer, FE-SEM (Field emission sc…
최근 원자로 압력용기 상부헤드 관통노즐 J-groove 용접부 주변에서 균열로 인한 냉각수 누출사고가 발행하고 있다. 이러한 사고의 원인은 용접에 의한 인장잔류응력, 농축된 붕산수 및 응력부식에 민감한 재료로 인한 일차수응력부식균열(PWSCC : primary water stress corrosion cracking)인 것으로 판명되었다. PWSCC 평가는 원자로 건전성 평가의 주요 관심사로서 용접에 의해 발생되는 잔류응력을 정확하게 예측함으로써 가능하다. 본 연구에서는 유한요소해석을 이용하여 국내 원자로의 일반적인 J-groove 용접부의 해석절차를 소개하고, 용…
This thesis describes the growth, structural characterisation, magnetic and magneto-optics properties of lanthanum strontium manganite (LSMO), GdMnO3 and transition metal (TM)-doped In2O3 thin films grown under different conditions. The SrTiO3 has been chosen as a substrate because its structure is suitable to grow ep…