Materials Literature
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Ni-Fe/Cu/Co/Cu multilayer nanowire arrays were electrodeposited into the pores of AAO template by using dual-bath method. The morphology and structure of the nanowire arrays were characterized by scanning electron microscopy and transmission electron microscopy. Vibrating sample magnetometer and physical property meas…
A thermal and hydrothermal stable mesoporous ceramic acid (mCA) was synthesized by uniform coating of a WZrO(x) layer onto the internal surface of extra-large mesoporous silica (EP-FDU-12). Its ordered mesoporous structure and strong Brönsted acid sites display excellent thermal (1000 °C, air, 5 h) and hydrothermal (w…
The failure modes of thin metal films and ceramic coatings induced by both intrinsic (growth) stresses and external effects (uniaxial tension, alternating bending, thermal treatment) were studied. Stress relaxation that causes soft films and hard coatings to fail was demonstrated to be governed by essentially the same…
Vaterite is a crystalline polymorph of calcium carbonate that exhibits low stability in comparison with the other crystalline polymorphs of calcium carbonate. It often assumes a spherical shape. The physical properties of vaterite are utilized in advanced biomaterials such as drug delivery systems (DDSs). The potentia…
Interfacing synthetic materials with biomacromolecules provides new systems for biological applications. We report the creation of a reversible multivalent supramolecular "zipper" recognition motif between gold nanoparticles and proteins. In this assembly, carboxylate-functionalized nanoparticles interact strongly wit…
Flexible silicone macromolecules have been inserted into OMMT and the constrained layer damping structure has been prepared successfully in the nanocomposites.
Porous titanium compacts were fabricated using a slip casting technique. The slip casting process is low cost and has the advantage of producing green compacts with open pores. After final sintering the retained porosity gives the material a relatively high permeability. The organic compounds forming the binder and pl…
Synthesis of pyrimidine polymers, their pyrolysis to obtain nitrogen containing graphene like structures and application of these graphitic materials in polymer/graphene hybrid field effect transistors is reported.
The main goal of ceramic laminates designed with residual stresses is to increase the fracture energy of the system during fracture through energy dissipating mechanisms such as crack deflection or crack bifurcation.The angle of crack deflection from the straight propagation direction is influenced mainly by level of…
Pyrolysis of acetylene over thin films made of Cu x FeCoNiMn yields graphene and its sheet dimensions are found to be controlled by x . A monolayer structure forms at x = 0.5 and the sheet size reaches a value as large as 600 μm 2 .
Size-dependent quantized double layer (QDL) charging of dodecanethiol monolayer-protected diffusing silver nanoparticles (MP-AgNPs) is reported. Multiple periodic peaks in the differential pulse voltammograms were observed for the MP-AgNPs in a size range of 2.7 nm to 5 nm and these are attributed to the QDL charging…
Irradiation of [Ru(bpy)2(bpSOp)](PF6)2 (where bpy is 2,2'-bipyridine and bpSOp is 1,3-bis(phenylsulfinyl)propane) results in the formation of two new isomers, namely the S,O- and O,O-bonded species. The crystal structure of the bis-thioether and bis-sulfoxide complexes are reported. NMR spectroscopy of the bis-thioeth…
Ni composite anodes for Ca-doped LaNbO 4 (LCNO) based proton conducting solid oxide fuel cells were fabricated as screen-printed Ni-LCNO cermets on a dense self-supported LCNO electrolyte and as a semi-symmetrical cell consisting of a ∼ 15 μm thick LCNO electrolyte deposited on a tape-cast Ni-LCNO anode support. The i…
Gold/titania nanocomposites with a core-shell structure were prepared by sol-gel reaction of titanium tetrabutoxide (TTBO) with gold nanoparticles, core-stabilized with cetyltrimethylammonium bromide (CTAB), using a ternary mixture of alcohol/acetonitrile/water as solvent. TEM characterization of the resulting constru…
In this article, non-toxic Cu 2 ZnSnS 4 quantum dots (CZTSQDs) were synthesized by the solvothermal method and then embedded into a photonic cavity to tune the amplified spontaneous emission.
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Amit Banerjee, Debajyoti Das; Fabrication of highly transparent diamond-like carbon anti-reflecti…
Micro hardness number of KCl, KBr and KCl-Br grown by Czocharlski technique, in the presence of homovalent and aliovalent ions of different ionic radii were measured in the indentation load range from 5 to 80*10−3 N. The measured data showed that there is an indentation size effect and classical Meyer’s law was used f…
A novel method for the conversion of diatom bio-silica structures into nano-porous 3D silicon/magnesium silicon nitride replicas utilising simultaneous metallothermic reduction and nitriding is described. Optical, chemical and structural characterization of the replicas is also presented.
studied by conventional scanning electron microscopy (SEM, JSM-6510LA). Nanocrystalline cellulose was extracted from the natural fibers by the chemical treatments of alkalization and bleaching followed by acid hydrolysis. Alkalization and bleaching resulted in microfibril cellulose, whereas a mix of micro and nanocrys…
In this study which was performed in order to determine the seasonal variations of water quality parameters and algal flora of Tundzha River, samplings were made monthly from 5 different stations along the river. A total of 138 taxa from Chlorophyceae (65 taxa), Bacillariophyceae (46 taxa), Euglenophyta (13 taxa) and…