Materials Literature
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使用基于密度泛函理论（DFT）的DMOL3程序包,研究了双金属茂合物Cp2TM2（TM=Zn/Cu/Ni）的几何结构、电子结构和储氢性能。结果表明：不同夹心原子对体系几何结构的影响微弱;Zn/Cu/Ni茂合物的电子局域态密度（LDOS）在费米能级（EF）处起主要作用的是d轨道电子;随夹心原子Zn/Cu/Ni原子序数的降低,其茂合物最低非占据轨道和最高占据轨道的差值（LUMO-HOMO）逐渐降低。Zn/Cu/Ni茂合物均可吸附8个H2分子,其平均吸附能分别为0.802 eV/H2（Cp2Zn2）、0.422 eV/H2（Cp2Cu2）和0.182 eV/H2（Cp2Ni2）,储氢容量分别达到6.2wt%（Cp2Zn2）、6.3wt%…
Organic photovoltaics is about to become a competitor fort he \nestablished inorganic thin film photovoltaic technologies. It inhibits \nseveral important advantages: flexibility, light weight, and potential \nsemi-transparency and production speed. Even the photovoltaic power \nconversion efficiency is reaching comp…
The hot recycled asphalt mixtures, can fit among alternative materials for working with very hard asphalt and gains feedstock with environmentally friendly and inexpensive. One of the main problems to be solved in practical activities of recycling asphalt concrete is the need for frequent addition of a new stone aggre…
OBJECTIVE: To review the latest researches of Tenomodulin in tendon tissue engineering, to predict the progress of research and application of Tenomodulin. METHODS: The literature concerning Tenomodulin in tendon tissue engineering was collected and analyzed. RESULTS: Tenomodulin is a type II transmembrane glycoprotei…
Fast sol-gel synthesis of mesoporous Li2MnSiO4C nanocomposite with improved electrochemical performance for lithium-ion batteries
Operating in a high temperature and pressure environment is a serious challenge for microelectronics device packaging. This study evaluates the electrical and mechanical behavior of Al, Ag, Mo, Nb and W metallization on ceramic substrates aged under harsh conditions, with the latter three showing great potential as ca…
The aim of this work is to analyze the crystallization of β-nucleated iPP and its crystallization in model composites with different content (10-60 %) of glass fibers, known as α-nucleators, in order to predict the behaviour of real glass fiber/iPP composites, since the two polymorphic modifications of iPP are known t…
A new type of ultra-cold ion source is under development which employs transverse laser cooling and compression of a thermal atomic rubidium beam followed by photo-ionization. The resulting ultra-cold plasma is focused to a nanometer-sized spot using an existing Focused Ion Beam column and this spot can be used for th…
En las aleaciones Fe-Mn-Si, el efecto memoria de forma (EMF) está asociado con una transformación martensítica inducida por tensión. La transformación procede a partir de la fase austenítica, normalmente retenida a temperatura ambiente, a una martensita de estructura cristalina hexagonal compacta: (FCC) → (HCP). Sin e…
Co:BaTiO 3.We synthesized thin films of composite multiferroic Со:BaTiO 3 and analyzed their structure and optical and magnetic properties. The films were prepared using ion-stimulated deposition. Ceramic BaTiO 3 and metal cobalt plates were used as targets. The nanocomposite Co:BaTiO 3 films were annealed in air at t…
Droplet epitaxy (DE) is a non-conventional growth technique based on molecular beam epitaxy. This method, differently from strain-induced 3-dimensional nano-structures, enables the growth of lattice-matched and strain-free self-assembled III-V nano-emitters. Thanks to the versatility of the DE, different kinds of nano…
本研究利用銅-氧共晶接合法，又通稱直接覆銅法，接合金屬銅與氧化鋁。藉此方法接合金屬與陶瓷時，氧在接合性質上扮演了關鍵性角色，因而研究陶瓷與不同氧含量之金屬接合之界面。為得含不同氧含量的銅金屬，進行改變溫度、時間以及氣氛搭配成多樣的預氧化處理。因預氧化處理改變了銅的表面氧含量，本研究同時也探討了銅之氧化機制。氧化過程中，於銅表面發現了氧化亞銅(Cu2O)和氧化銅(CuO)，且氧化機制由擴散控制。透過氧化機制之研究，可有效調整預氧化處理參數(溫度、時間和氣氛)而得含不同氧含量之銅金屬。本實驗於氮氣下1075℃ 進行共晶接合，共晶液相於銅和氧化鋁的接觸面形成，潤濕氧化鋁表面，於冷卻後獲得接合良好之金屬-陶瓷界面。利用高解析度穿透式顯微鏡…
Hierarchical nanostructured Al-doped ZnO (AZO) powders were successfully prepared through a mild solution route. The crystal structure and morphology of AZO were determined by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The morphology of the samples changed from random flower…
th , 2012 ABSTRACT: Morphological analysis and electrical conductivity of composites obtained by melt-processing of blends of a polyaniline complex (PANICX) with styrene-butadiene-styrene (SBS) are reported. Blends with PANICX contents ranging from 1 to 50 wt% were first prepared using a two-piece batch mixer, followe…
The exciton dynamics of single-walled carbon nanotubes (SWNTs) wrapped by ionic conjugated polymers and the photophysical properties and excited-state dynamics of supramolecular porphyrin conjugates are interrogated by steady-state and time-resolved optical spectroscopy. This study exploits spectroscopic techniques to…
Despite their huge potential, 100% bio-based surfactants still face difficulties to replace their counterparts of fossil origin. Higher costs and limited applications are often the major drawbacks to their wide use. The work presented in this thesis relates to the synthesis and evaluation of physico-chemical propertie…
The characteristics of martensitic transformation and magnetostructural coupling have been investigated for MnNiGe1-xGax (x=00.30) alloys. It has been found that the martensitic transformation temperature of the system can be deceased about 400 K by doping a low content of Ga to substitute for Ge. Adding Ga may weaken…
Photoelectrochemical characterizations at macroscopic, microscopic and mesoscopic scales were performed on thermally oxidized duplex stainless steel samples, with special attention paid to the differences exhibited by the oxides formed on austenitic and ferritic grains. Whereas duplex stainless steel oxidized in water…
混合基材薄膜(Mixed matrix membranes，MMMs)一直是近年來廣受研究的一種新興材料，主要透過有機與無機兩種材料特性的結合，具有良好的機械性、熱性質和優異的滲透分離效能。然而，無機與有機材料間的結合情形是影響整體薄膜滲透與分離效能的重要因子，因此如何使兩相間產生理想的黏著性(adhesion)為近年來的研究重點。故本研究將利用現地溶膠-凝膠程序與後熱處理方式來製備PPO-silica的混合基材薄膜以改善兩相 的黏著情形。研究中亦將探討無機材silica的添加量對薄膜物理特性之影響，並透過電子顯微鏡(FESEM)、熱重分析儀(TGA)、X光繞射分析儀(XRD)及傅立葉紅外線轉換光譜儀(FTIR)，觀察混合基材薄膜…
Ternary nanostructured CdS0.8Se0.2 thin film was prepared on to glass substrate by a simple and economical soft chemical route at 50°C at room temperature. The as-grown films were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), optical and electrical measurements. The XRD patterns reveal…