Materials Literature
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Advances in nanofabrication have allowed the production of new and more reproducible substrates for the Raman detection of trace antimicrobials in water. The superior substrate uniformity combined with the ability to control surface morphology represents a significant step forward in the design of substrates with impr…
Surface plasmons based on metallic nanostructures enable light manipulation beyond the optical diffraction limit. We have epitaxially synthesized twin-free single-crystal Ag nanoplates on SrTiO3 substrates. Unlike the nanoplates synthesized in a solution phase, these nanoplates have perfectly clean surfaces as well as…
Compressibility of liquid flame spray-deposited porous TiO2 nanoparticle coating was studied on paperboard samples using a traditional calendering technique in which the paperboard is compressed between a metal and polymer roll. Surface superhydrophobicity is lost due to a smoothening effect when the number of success…
Abstract An alternative and efficient way to synthesize HUS-1 (Hiroshima University Silicate-1, Si10O24H8·2[(CH3)4N]), and a new notable function of HUS-1 are reported. HUS-1, which is an ast-type layered silicate, was originally synthesized through a complicated process from two kinds of dealuminated zeolites, FAU an…
A high-precision spin-coater system has been developed for the investigation of formation mechanisms of self-assembled structures in polymer thin films. The spin coater was designed to have small axial deflection (<2.6 µm at the maximum speed of 2000 r min−1) during rotation in order to maintain the relative position…
This paper investigated the high-temperature mechanical properties of nano-steel fibre-reinforced concrete (NSFC), steel fibre-reinforced concrete (SFRC) and normal concrete. The mechanical properties were compressive strength, splitting tensile strength and flexural strength. The microstructure and interfacial transi…
다층박막이 있는 기층에 단축이방성 배향막이 코팅되어 있을 때 비스듬히 입사한 빛의 유효반사계수 표현들을 유도하였다. 유효반사계수들과 타원상수들을 다층박막의 미지상수들은 물론 단축이방성 배향막의 광학이방성의 크기와 광축의 방향 그리고 배향막의 두께로 표현하였다. 이를 바탕으로 배향막의 정상굴절률과 이상굴절률, 배향된 두께 그리고 광축의 방위각과 기울임각을 다층박막의 두께나 조성비 등과 함께 타원법이 가지고 있는 높은 수준의 측정 정밀도를 유지하며 기존의 모델링 분석방법으로 결정할 수 있도록 하였다. The effective reflection coefficients…
TiO2 films, which are often sintered at 450°C for 30 or 60 minutes for application in dye-sensitized solar cells (DSSCs), show no appreciable connectivity between the TiO2 particles. The present work deals with connectivity between TiO2 particles and its effect on electron diffusion and short circuit current density (…
FT-IR, DSC, and NMR techniques allowed the structural characterization of four copolymers formed by styrene and methacrylic units (methacrylic acid (MAA), dimethylamine ethyl methacrylate (DMAEMA), sodium methacrylate (MANa), and 1-hydroxyethyl methacrylate (HEMA). The copolymer composition was studied by Fourier tran…
Abstract The oxidation of Fe-36Ni invar alloy at 1273–1473 K in 15%CO 2 -(0, 3, 5, 6)%O 2 -N 2 atmosphere and the effect of the grain structure on the compressed cracks were investigated using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and a microcomputer control…
Abstract The present paper deals the application of Taguchi method with grey relational analysis to optimize the machining parameters with multiple responses in electrochemical machining (ECM) of Al/B4C metal matrix composites. Experiments were conducted on a Metatech ECM setup and L27 orthogonal array was chosen for…
Zintl phases: The new lithium-rich Zintl phase Li12Ag1−xSi4 (x=0.15) contains the highly charged 16-electron anion [AgSi2]7−. Chemical bonding is discussed based on electronic band structure analysis (see figure).
Abstract Two new CoII coordination polymers, [Co(L1)0.5(hip)]n (1) and [Co(L2)(mip)·2H2O]n (2) [L1 = 1,1′‐(1,4‐butanediyl)bis‐1H‐benzimidazole, L2 = 1,3‐bis(5,6‐dimethylbenzimidazol‐1‐yl)‐2‐propanol, H2hip = 5‐hydroxyisophthalic acid, H2mip = 5‐methylisophthalic acid], were synthesized under hydrothermal conditions an…
Titanium dioxide (titania) is widely used as a photocatalyst for its moderate band gap, high photoactivity, recyclability, nontoxicity, low cost and its significant chemical stability. The anatase phase of titania is known to show the highest photocatalytic activity, however, the presence of this phase alone is not su…
A closed-form solution for temperature and stress fields is presented for short-pulse laser heating of the metal surface. Thermo-mechanical coupling between the heat and stress equations is incorporated in the analysis. The lattice site heat equation based on the non-equilibrium energy transport is used to account for…
An attempt has been made to enhance the photocatalytic activity of CeO(2) for visible light assisted decoloration of methylene blue (MB) dye in aqueous solutions by β-cyclodextrin (β-CD). The inclusion complexation patterns between host and guest (i.e., β-CD and MB) have been confirmed with UV-visible spectral data. T…
Cathode materials LiNi 0.5 Mn 1.5 O 4 and LiNi 0.5 − x /2 La x Mn 1.5 − x /2 O 4 ( x = 0.04, 0.1, 0.14) were successfully prepared by the sol-gel self-combustion reaction (SCR) method. The X-ray diffraction (XRD) patterns indicated that, a few of doping La ions did not change the structure of LiNi 0.5 Mn 1.5 O 4 mater…
Abstract The three‐dimensional (3D) coordination polymer, [Zn(dpa)(bib)]n (1) [H2dap = diaphonic acid and bib = 1,4‐bis(imidazol‐1‐yl)benzene], was prepared by hydrothermal synthesis and characterized by single‐crystal X‐ray diffraction, FT‐IR spectroscopy, XRPD, and elemental analysis. Crystal structure determination…
We investigated the influence of the Ga doping in the ZnO interlayer as an electron transport layer (ZnO ETL) on the nanoscale phase separation in the bulk heterjunction (BHJ) layer coated on the ETL as well as the morphological and electrical properties of a low temperature sol–gel-derived pristine ZnO ETL (P-ETL) an…
This research presents a flexible reflective thermochromic display (TCD) comprised of thermochromic pigments and a patterned indium tin oxide (ITO) film coated on a polyethylene naphthalate (PEN) substrate, and the display's thermo-optical characteristics. The display showed maximum red, green, and blue reflectances o…