Materials Literature
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Abstract A novel cobalt complex, (L1)2Co2(hfac)4, (1), where L1 is (2E, 5E)-2, 5-bis(pyridin-3-ylmethylene)cyclopentan-1-one, has been synthesized and characterized by infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The crystal of 1 is monoclinic, sp. gr. P21/c with the unit cell param…
Abstract A gradient‐extended damage theory is shortly presented. The focus is on the internal thermodynamic forces and their extension to gradient‐extended models. This continuum mechanical framework is used for an application to an anisotropic damage model with a 2nd order damage tensor.
Scrapie is the transmissible spongiform encephalopathy (TSE) of sheep and goats, and it can be transmitted in both directions between these species. Scrapie eradication programs worldwide have utilized strong genetic resistance to classical scrapie in sheep, but such resistance has not been available for goats until r…
Abstract The mechanical behavior of polymers and other glass forming materials is strongly time‐ and temperature‐dependent. Based on the rheological Poynting‐Thomson Model and the Adam‐Gibbs equation, a shift function is developed which relates the time constants of a material to temperature. The behavior of this func…
In this work, CuOx/SnO 2 nanostructures were synthesized by a microwave-assisted thermal oxidation. Mixture of Sn and Cu 2 O was loaded into a cylindrical quartz tube and further radiated in a microwave oven under atmospheric ambient for two minute. Ratio of the mixture was varied. The as-synthesized products were cha…
Bu çalışmada, düzlem dalga hesaplamaları ve yoğunluk fonksiyon teorisi kullanılarak zinc-blende faza sahip BBi kristalinin yapısal, elastik ve elektronik özellikleri incelenmiştir. Değiş-tokuş ve karşılıklı etkileşme enerjileri ise yoğunluk fonksiyon teorisi ile hesaplamalara dahil edilmiştir. BBi için hesaplanan örgü…
Abstract Based on tricalcium phosphate, new high-strength composite materials were synthesized, in which the strengthening phase was ZrO2. To reduce the sintering temperature and obtain a fine crystalline structure, a special additive based on sodium silicate was developed, which favored the formation of low-temperatu…
Abstract The thermodynamical consistent combination of classical non‐coherent cohesive zone models with surface elasticity theory is relatively new, cf. [1]. Relying on the variational structure of the underlying problem, a compact and direct derivation of the framework [1] is presented. By embedding the framework int…
The reliability and service life of gas pumping units (GPU) are largely determined by the presence, composition and quality of protective coat- ings created on the surface of the parts, especially on the most loaded ones - turbine blades. However, the service life of coatings containing mainly a complex of components…
Abstract Collagen is the main structural protein in various biological tissues and of high interest for microstructural multi‐scale models due to its load bearing functionality. The worm‐like chain (WLC) model [4] with its approximation [6] is a widely used approach for the modeling of DNA, which has a helical structu…
Abstract In this contribution the flow inside a simplified device for profile extrusion is investigated. Focus of this work is the cooling rate dependent crystallization model describing the latent heat release and state of solidification. The flow behavior is described using the exponential form of the Phan‐Thien Tan…
Variations in the amount and maturity of intramuscular connective tissue (IMCT) have long been recognised as a source of variations in tenderness between different muscles, animal ages and breeds. Meat becomes tougher as cooking temperatures are increased, and the heat-driven denaturation and shrinkage of IMCT has pre…
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The precise polymerization is essential method to make polymer materials with high performance and functionality. Recently, the precise polymerization such as radical, cationic, anionic, and coordination polymerization, which enables control of molecular weight and stereoselectivity, has been much attractive. This min…
Unter dem Begriff Hygiene verstehen wir einerseits “Reinlichkeit” und “Gesundheitspflege”, aber er ist auch Teil des Ausdrucks „medizinische Strahlenhygiene“, wobei Hygiene im Sinne von Reduktion der Strahlenexposition zu verstehen ist – sowohl für Patient als auch für medizinisches Personal. Hygiene – sei es nun Rein…
Abstract The corrosion behavior of a low carbon steel in simulated high temperature naphthenic acid environment has been investigated by the measurements of electrolyte conductivity, potentiodynamic polarization, and galvanic corrosion behavior test. The results indicate that the conductivity of naphthenic acid oil so…
Fabricating plasmonic structures with gaps approaching nanometer (nm) or even Ångstrom scales is still challenging but essential to exploit the full potential of plasmonics-based devices.Nevertheless, the efforts of multiple research groups in physics, chemistry and biology have promoted exciting new research in the f…
Abstract Hydrogen can substantially increase the material degradation under cyclic loading. During short fatigue crack growth, which is often the dominating stage during crack propagation, the crack growth rate is highly influenced by microstructural characteristics such as grain boundaries, the formation of slip band…
The synthesis and X-ray diffraction study of the ruthenium(II) complex, [{trans-(dppe)2(Cl) Ru–C≡C–H} · 0.5CDCl3] (trans-Ru · 0.5CDCl3), are presented. The molecule of trans-Ru · 0.5CDCl3 crystallizes in the triclinic sp. gr. $$P\bar {1}$$ with two chemically equivalent but crystallographic independent molecules. The…
In article number 1703481, Hyungsang Kim, Hyunsik Im, and co-workers fabricate Ni(OH)2 two dimensional (2D) nanosheets pillared with zero-dimensional (0D) polyoxovanadate (POV) nanoclusters as an oxygen-evolution reaction (OER) catalyst that can operate in alkaline media. The intercalation of POV nanoclusters into Ni(…