Materials Literature
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An alternatives analysis was performed for the Advanced Post-Irradiation Capabilities (APIEC) project in accordance with the U.S. Department of Energy (DOE) Order DOE O 413.3B, “Program and Project Management for the Acquisition of Capital Assets”. The Alternatives Analysis considered six major alternatives: ? No Acti…
Tin/TiO2 composites prepared by chemical treatment and calcination were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry, electrochemical impedance spectroscopy, and half-cell tests. The SEM and XRD results show that Sn modified on TiO2 surface after 450℃ calcinations can…
The metal matrix composites (MMCs) are of keen interest in the recent years because of their pervasive application in automotive and aerospace industries .This paper summarizes the Cu/Al 2 O 3 composites prepared by various fabrication routes and their results. The copper-alumina MMCs are gaining importance increasing…
Photo-physical properties of iridium complexes bis(1-(2′,4′-difluorobiphenyl -4-yl)isoquinoline)iridium(III)(5-(4-(bis(4-methoxyphenyl)amino)phenyl)picolinic acid) used as phosphorescent dopant in polymer light-emitting devices with a blend ofpoly(9,9-dioctylfluorene) and 2-tert-butyl-phenyl-5-biphenyl-1,3,4-oxadiazol…
In order to investigate the quality of marketed cosmetics, 99 samples were randomly collected from cosmetics stores, drug stores and pharmacies by local health bureaus in Taiwan area from January to April, 2011. These samples were analyzed for lead (Pb), arsenic (As) and cadmium (Cd) by inductively coupled plass-mass…
티타늄을 함유하는 제올라이트 촉매를 이용한 디시클로펜타디엔(DCPD)의 선택적 에폭시화 반응에 관한 연구를 수행하였다. 티타늄을 함유하는 제올라이트 계 촉매 중에 Ti-제올라이트 Y촉매가 에폭시화 반응에서 가장 좋은 활성을 보였다. 선정된 Ti-제올라이트 Y촉매를 이용하여 DCPD 에폭시화 반응에 미치는 과산화수소/DCPD의 비, 반응온도, 반응시간, 산처리 영향, 촉매의 양에 관한 여러 변수들의 영향이 연구되어 반응조건들이 DCPD 에폭시 반응에 미치는 영향에 관해 연구하였다. 또한 촉매 제조 방법에 따른 촉매에 존재하는 Ti 구조에 대해 IR과 UV-vis 기기…
Professor Dayang Wang and coworkers from the Ian Wark Institute, University of South Australia, along with European collaborators, have demonstrated that gold nanoparticles coated with stimuli-responsive polymer brushes (red phase in figure) readily transfer from oil to salty water across the planar interfaces when th…
In classical mechanics, considering Hook’s law stress is a linear function of strain. While in strain gradient theory stress is a function of strain and strain differentials. In this paper, Novel formulation relating stress and strain and also new boundary conditions are derived based on minimum potential energy princ…
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The paper is focused on the formation of hydroxyapatite nanoparticles (HAp) in polyelectrolyte-modified microemulsions, in a microemulsion template phase consisting of cyclohexane, water, cationic surfactant and cosurfactant, in the presence of Na-polyacrylate (PAA) as an anionic polyelectrolyte. It is shown that PAA,…
An aromatic belt, a molecule that has two continuous edges that do not intersect and is fully conjugated, is a synthetic target that has yet to be isolated.Aromatic belts are an attractive target for synthetic chemists, due to their curved pi system.Molecules with curved pi systems, such as fullerenes and carbon nanot…
Tässä raportissa tarkastellaan Koitereen säännöstelyn kehittämisselvityksen (2004–2006) yhteydessä annettujen suositusten toteutumista ja vaikutuksia vuosina 2007–2011. Koitereen säännöstelyn kehittämishankkeen keskeisenä tavoitteena oli laatia säännöstelyn haittojen vähentämiseksi sellaiset suositukset, jotka eri osa…
Vertically aligned ZnO nanoplatelets were grown by aqueous chemical growth (ACG) method using aluminum nitride (AlN) film as an interfacial layer on silicon wafer; whereas, ZnO nanorods were grown by the identical process on the bare silicon wafer. Prior to ZnO nanostructure growth, the morphological properties of the…
Rhenium diimine tricarbonyl complexes bearing bromide, acetonitrile, 3–picoline or triethylphosphite have been synthesized and employed for selective photocatalytic CO2 conversion into carbon monoxide. To avoid employing high–energy radiation, multicomponent visible light sensitized systems have been developed combini…
Gold catalysts supported on ZrO 2 and ZrO 2 -SiO 2 were prepared by incipient impregnation and depositionprecipitation with urea (DPU) with 1 % of nominal gold loading. The solids were characterized by X-ray diffraction analysis (XRD), N 2 -physisorption and temperature programmed reduction (TPR). Catalytic activities…
Perovskite BaTiO3 nanopowders are hydrothermally synthesized using H2Ti3O7 nanoentities, which themselves are also hydrothermally synthesized, as titanium precursors. The structure and morphology of the obtained BaTiO3 nanopowders are studied as functions of synthesis reaction time, using electron diffraction and elec…
This paper details the use of carbon nanotubes and graphene for key field emission applications. Herein we describe the growth of nanotubes and their optimization for use in electron microscopes, field emission displays and x-ray sources. We also present a novel edge-emitting graphene based structure for large area el…
Knowledge on phonon transmittance as a function of phonon frequency and incidence angle at interfaces is vital for multiscale modeling of heat transport in nanostructured materials. Although thermal conductivity reduction in nanostructured materials can usually be described by phonon scattering due to interface roughn…
To the best of our knowledge the difference in the magnetic properties of ions like Gd (7.94 μB) and Pr (3.58 μB) on the electrical properties of ZnO-varistor have not been studied. To clarify this effect, the binary systems, ZnO-Gd2O3, ZnO-Pr6O11and the ternary system ZnO-Gd2O3-Pr6O11were studied. The ceramics were p…
The electrical properties of Er2O3-doped bismuth titanate，Bi4-xErxTi3O12 (BET) ceramics prepared by a conventional electroceramic technique were investigated. XRD analyses revealed Bi-layered perovskite structure in all samples. SEM micrographs showed randomly oriented and plate-like morphology. For the samples with x…