Materials Literature
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Addition of germanic acid into the culture medium of the diatom Synedra acus subsp. radians (Kutz.) Skabitsch. had nearly no influence on the culture growth at the Ge/Si molar ratio 0.01, but stopped it at ratios 0.05 and higher. It was shown by mass-spectrometry that at the Ge/Si ratio 0.01 germanium was incorporated…
Acoustic emission (AE) sensors have been fabricated using both soft- and hard-type lead-free (Na0.5K0.5)NbO3-based ceramics. The acoustic and electromechanical properties of the ceramics have been determined using the resonance technique. The lead-free AE sensors were calibrated using a laser source and compared to a…
Direct experimental evidence of the validity of the two-phase model of chalcogenide glass has been obtained. It has been shown that the polarization-light irradiation of glassy semiconductor films induces giant mass transport in the direction perpendicular to the polarization of the incident light. It has been reveale…
Abstract The use of coupled multi-electrode arrays in various corrosion applications is discussed with the main goal of advancing the understanding of various corrosion phenomena. Both close-packed and far-spaced electrode configurations are discussed. Far-spaced electrode arrays are optimized for high throughput expe…
We have demonstrated covalent bonding of protein molecules to an oxidized multiwall carbon nanotube (MWCNT) in an aqueous buffer solution. A chemical reaction using carbodi-imide forms chemical bonds between open-ended tips of MWCNTs and protein molecules. The statistical examination indicated that proteins were attac…
TiCoSb-based half-Heusler compounds with the substitution of Zr for Ti have been prepared quickly by combining high-energy ball milling method with spark plasma sintering technique, and their thermal transport properties have been investigated. With the increase of the concentration of Zr, the thermal conductivity of…
In the present work, we demonstrate the results of combining two excellent ferroelectric materials at their morphotropic phase boundary compositions, i.e., 0.2(Pb(Zn1∕3Nb2∕3)O3–0.8Pb(Zr1∕2Ti1∕2)O3 (0.2PZN-0.8PZT) and 0.2Pb(Ni1∕3Nb2∕3)O3–0.8Pb(Zr1∕2Ti1∕2)O3 (0.2PNN-0.8PZT) to form a ternary solid solution of x(Pb(Zn1∕3…
It is challenging to develop innovative, as well as commercially viable, lipid-based drug delivery systems for the treatment of cancer because of the breadth of existing intellectual property that limits freedom-to-operate. For example, novel compositions can be described in which a new chemical entity is associated w…
Specifying the chemical environment of cells is a well-established method of controlling cellular behaviors. In this study, poly(ethylene terephthalate) (PET) film was selected as a typical biomaterial to detect the effects of chemical modifications on material surface in controlling cell behaviors. Natural biopolymer…
Water-soluble hybrids of multi-walled carbon nanotubes (MWNTs) and gold nanoparticles (Au@MWNTs) were fabricated via the in situ solution method and characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy dispersive x-ray spectroscopy (EDS). An optoelectronic-active comp…
Abstract The corrosion behaviour of low carbon steel exposed to marine atmospheric, splash and immersion zones has been systematically studied by exposing steel specimens for a period of 12 months at the boat basin corrosion station of Chennai harbour, Chennai, Tamil Nadu, South India. The literature on similar work h…
From luminescence spectroscopy of CsCaCl 3 , Rb 1− x Cs x CaCl 3 and K 1− x Cs x CaCl 3 crystals, we have found evidence for intrinsic and impurity core–valence luminescence due to the radiative recombination of valence electrons with the holes of intrinsic or impurity 5p Cs + core states. The structural similarity of…
FT-IR and Raman spectra of five hydrated alkali borates and five hydrated alkali double borates have been recorded at room temperature in the range 400 to 4000 cm −1 , and analyzed. Fundamental vibrational modes have been identified and assignments tentatively made in comparison with the work of Janda and Heller, and…
The authors have demonstrated a method to form 20nm contact features of uniform size over a large area by integrating a self-assembling diblock copolymer with optical lithography. The diblock copolymer contacts are formed in topographical placers which are patterned with using optical lithography. A diblock copolymer…
The dielectric and electrical conducting behavior of low density polyethylene (LDPE) composites filled with Al micro- and nanoparticles were investigated. The results show that self-passivated Al particles restrict the formation of conductive pathways within polymer matrices of LDPE/Al micro- and nanocomposites. Howev…
Rotational moulding or rotomoulding is a manufacturing process best suited for producing one-piece, hollow plastic products. The raw materials can be in powder or liquid form with linear polyethylene of varying densities being dominant worldwide. Due to the modest material properties of polyethylene, reinforcement in…
Hydrotreating Ni heteropolytungstate catalysts have been prepared by impregnation of γ-Al 2 O 3 -alumina with solutions of H 3 PW 12 O 40 acid and its Ni salt. The nickel content is varied by adding Ni(NO 3 ) 2 salt. The calcined samples are characterized by BET, IR, TPR, and XPS techniques. The catalytic activity is…
High-definition metal-oxide-metal (MOM) heterojunction nanowires in the Au-NiO-Au system have been synthesized using a template-based method. These nanowires are 70 nm in diameter and in total length, with a 100 to 300 nm wide NiO segment sandwiched between the Au nanowires axially. Detailed electron-microscopy charac…
Acrylonitrile‐butadiene‐styrene (ABS)/organically modified montmorillonite nanocomposites were prepared by melt blending in an internal mixer, and their morphology, rheological behaviors and mechanical properties were characterized using X‐ray diffraction (XRD), capillary rheometer and tensile, flexural and impact tes…
Angle-Dependent Measurement of Near Edge X-ray Absorption Fine Structure of Annealing Effect on Local Structure of Focused-Ion-Beam Chemical Vapor Deposition Diamond-Like Carbon, Saikubo, Akihiko, Kanda, Kazuhiro, Kato, Yuri, Igaki, Jun-ya, Kometani, Reo, Matsui, Shinji