Materials Literature
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Many of Michigan's loamy soils exhibit varying degrees of fragipan expression, which may be variously influenced by their parent materials. We examined three soils in northern Michigan with varying degrees of fragipan expression to assess development of fragipans formed in acidic and calcareous glacial drift. To accom…
The rapid diffusion of H in metals permits an easy segregation to the grain boundary and an easy trapping to the vacancy. H-induced intergranular embrittlement in metals such as Fe and Ni is generally a result of coalition of segregated H and other embrittling impurities at the grain boundary. Ab initio total energy c…
A series of two-dimensional (2D) oxalate-based compounds, namely [N(n-C4H9)4][M(II)Cr(III)(ox)3] (M(II) = Mn, Fe; ox = C2O4(2-)) and [N(C2H5)(n-C3H7)(n-C4H9)(n-C5H11)][M(II)M(III)(ox)(3)] ((M(II), M(III)) =(Mn, Cr), (Fe, Cr), (Mn, Fe)) were synthesised starting from racemic tris(oxalato)metalate: rac-[M(III)(ox)3]3- (…
A low-temperature chemical bath deposition (CBD) technique has been used for the preparation of Mn 3 O 4 thin films on glass substrates. The kinetic behavior and the formation mechanism of the solid thin films from the aqueous solution have been investigated. Structure (X-ray diffraction and Raman), morphological (ato…
Crystallized B13C2 thin films were fabricated by intense pulsed-ion beam evaporation (IBE) method. Electrical conductivity and Seebeck coefficients of the obtained films were 1×10—4 l/Ωm and 200 μV/K at 1000 K, respectively. These values were comparable to those of bulks. For the application of the thin films, since r…
Highly organized mesoporous titania and silica thin films were synthesized using a triblock copolymer-templated sol-gel method via an evaporation-induced self-assembly (EISA) process. For the first time, we have found that the mesophase of these metal oxides can be selectively controlled by varying the spin-coating co…
Silica becomes increasingly used in chemical, pharmaceutical, and (nano)technological processes, resulting in an increased demand for well-defined silicas and silica-based materials. The production of highly structured silica from cheap starting materials and under ambient conditions, which is a target for many resear…
Performance of porous zinc electrode in alkaline secondary battery systems suffers mainly from shape change and dendrite growth. Polyaniline coating in direct contact with porous zinc electrode was found to restrict zincate movement away from the test electrode, which otherwise may lead to a decrease in electrode surf…
Benthic diatoms, which often dominate marine biofilms are mostly pennate along with a few centric species that have an attached mode of life. Even though the range of diatoms in biofilms is diverse, their ecology is poorly understood because of the difficulty in sampling and enumeration. Scraping or brushing are the t…
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Unit-cell parameters, Raman scattering profiles and DTA curves were measured on monoclinic tridymite from fired silica brick. Ten peaks appear in the Raman measurements from 100 to 1250 cm−1 at 25°C, and their positions and widths show no significant change up to 110°C. The monoclinic unit-cell parameters, a, b, c and…
ABSTRACT Fractions from the sorghum dry milling industry, including bran, are a potential source of kafirin. Free‐standing plasticized cast films were prepared from defatted kafirin preparations from red and white sorghum flour and bran fractions, and from commercial zein. All the kafirin preparations were able to for…
Many highway agencies have been using Geographic Information System (GIS) for analyzing accident data. Identification of problematic locations is one of the most important aspects in accident studies. The GIS based application combines the information collection capabilities with the visualization. The GIS and Road Ac…
New correlations between various CPTU factors, undrained shear strength and overconsolidation ratio have been developed for soft to medium stiff clays. The correlations are based on comparing the CPTU results against undrained traxial compression strength and preconsolidation pressure determined on block samples of ve…
Disc-shaped clay particles (Laponite) with a thickness of 1 nm and a diameter of 25 nm were bridged into a physical gel (shake gel) by poly(ethylene oxide) (PEO) chains under shear. The shake gels formed transformed again into a liquid when the shear stopped. The critical concentrations of Laponite and PEO required fo…
Transparent monoliths made of new interpenetrating networks based on titanium-oxo-poly(hydroxyethyl methacrylate) (PHEMA) nanocomposites are obtained through one pot synthesis with low shrinking and show a strong laser-induced darkening activity.
This work was carried out to investigate the effect of welding variables (includes wire feeding techniques, wire feeding rates and heat inputs) on the cooling rate, Δt8⁄5 (cooling time from 800 to 500°C), in the weld and heat affected zone (HAZ) areas of multi-pass weldments in a super duplex stainless steel. Furtherm…
The crystal structure of a new monoclinic polymorph of 2,2′ : 6′,2″ terpyridine (terpy) that contains two independent but structurally similar molecules, and crystallises in a space group P21/c, is reported. Variable-temperature single-crystal X-ray diffraction studies at 100, 150, 200 and 250 K show that the b-axis l…
Raman spectra of amorphous hydrated ruthenium oxide ( RuO 2 ∙ x H 2 O ) thin films were measured in situ during electrochemical charging/discharging cycles. As hydrogen was intercalated into the films, a peak at 590 cm − 1 emerged. The emergence of this peak was accompanied by a decrease of a peak at 700 cm − 1 . To i…
Recently, there have been significant experimental advances in cancer treatment using metallic nanoshells, which are silica spheres coated with gold. Nanoshells posses an excellent tunability of their resonance frequency as a function of the relative sizes of the core and the thickness of the shell, consequently offer…