Materials Literature
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Silicon-based ceramics undergo severe degradation at temperatures above ~1000 ℃ in the presence of water vapor, which is inevitable in combustion environments. Therefore, Environmental Barrier Coatings (EBCs) are necessary for the protection of Si₃N₄-based ceramic components in the harsh combustion environments. Rare…
Characterization of bio-molecular nano-layers by means of reference-free X-ray Spectrometry An increasing field of application, e.g. in biotechnology is the dedicated adjustment of surface properties by functionalization with organic molecules. For a detailed understanding and further development of such nano-layers,…
Historic measurements of actinide samples in the Dounreay Prototype Fast Reactor (PFR) are of interest for modern nuclear data and simulation validation. Samples of various higher-actinide isotopes were irradiated for 492 effective full-power days and radiochemically assayed at Oak Ridge National Laboratory (ORNL) and…
In Germany the concept of dry interim storage of spent fuel in dual purpose metal casks is implemented, currently for periods of up to 40 years. The casks being used have an approved transport package design in accordance with the international IAEA transport regulations as well. The storage of spent nuclear fuel and…
D e v e l o pme n t o f m u l t i f u n c t i o n a l a n d m u l t imo d a lnanoparticles, oxidative stress-responsive sensors, andnanobioplatforms for drug and gene delivery, as well as formolecular imaging and therapy of “free radical diseases”(cancer, neurodegeneration, atherosclerosis, inflammation,etc.).
The growth of micro-scale wireless electronics is increasing significantly because of their miniaturisation and low power consumption. These devices currently draw power from batteries or chemical fuel cells. Their limited life-spans prompt active research to find an alternative solution by harvesting ambient energy f…
espanolLos polimeros conjugados porosos que comprenden redes completamente p-conjugadas representan una nueva generacion de fotocatalizadores heterogeneos capaces de generar combustibles solares. Estos materiales exhiben un gran numero de interesantes propiedades como son propiedades semiconductoras, altas termo y fot…
Os processos de união por soldagem entre peças e componentes metálicos são indispensáveis para nossa realidade tecnológica. O processo de soldagem por fricção com pino consumível conhecido como FHPP (Friction Hydro Pillar Processing) é um processo desenvolvido recentemente que ocorre no estado sólido através da fricçã…
In the recent years, there has been a growing interest in micro- and nano-structured composite systems due to their wide use in microelectronics, optoelectronics, magneto-optical devices, high-density data storage, sensors, biomedical devices, and many other areas. Of particular interest is application in the integrat…
Pred Vama se nalazi knjiga “Studije o betonu 2015-2016”. U sebi sadrži tri \nstudije iz oblasti betona i betonskih konstrukcija iz naznačenog perioda. Namjera je \nda ovo bude samo prva knjiga iz serije studija o betonu i betonskim konstrukcijama, \nkoje predstavljaju istraživanja koja se trenutno rade ili će se radit…
The development of low carbon cements has gained great importance over the last decades. In the effort to limit the carbon content related to its production, cement is often replaced with supplementary cementitious materials (SCMs). Commonly used SCMs such as fly ash and slag have undergone extensive research, but are…
Mg-Ni nanoparticles were synthesized by a physical vapor condensation method (DC arc-discharge) in a mixture of argon and hydrogen atmosphere, using compressed mixture of micro powders as the raw materials. The crystal phases, morphology, and microstructures of nanoparticles were analyzed by means of X-ray diffraction…
During the last few years, the synthesis of inorganic two dimensional (2D) materials tremendously increased, due to their promising surface area1,2. However, the synthesis of these 2D materials can significantly influence our environment, by the use of harmful chemicals and severe reaction conditions3,4. Herein, we re…
The fullerene is the fourth allotropic modification of carbon and its properties, as volume, gravimetric and electrochemical capacities, are in excess of many similar properties of metal hydrides and hydrocarbons. The solution of the problem of the reversible hydrogenation of each carbon atom in the frame of fullerene…
Redox-based resistive switching memory (ReRAM) is rigorously investigated for nextgeneration non-volatile storage devices, which comprise the new storage class memory(SCM) and realizations of logic in memory functions that aim towards the internet ofthings (IoT) and to neuromorphic computing. These applications requir…
The ductility of Q&P 1180 steel was studied with regard to retained austenite transformation under different strain paths. Specimens were tested in uniaxial tension in a standard test frame as well as in situ in the scanning electron microscope (SEM). Then digital image correlation (DIC) was used to compute the effect…
Modern and future power plants will use more elaborated and complex materials to withstand the higher steam temperatures and pressures as well as thermal cycling. As such, dissimilar metal welds (DMWs) will be much more widespread in new design than before and will need to demonstrate resistance to combinations of sev…
Seven different coating systems were tested regarding their suitability for application on bicycle frames made of wood.Since bicycles are ridden throughout the year, the coating system has to withstand different outdoor climate conditions and, especially in winter, the salt brines from the roads.For this reason, an ar…
Das mikrostrukturelle Verhalten einer AlSi9-Legierung wird experimentell und numerisch untersucht. Anhand unterschiedlich schnell erstarrter Gussproben werden Schliffbilder erstellt sowie der sekundare Dendritenarmabstand (DAS), der Abstand der eutektischen Siliziumkristalle und der Anteil der eutektischen Phase analy…
土壌に生息する真核単細胞生物は，乾燥耐性や紫外線耐性などの環境耐性を有する休眠型細胞（休眠シスト）を形成することにより，陸上環境にうまく適応している。降雨により一時的に水環境が出現すると，休眠型細胞は，あっという間に増殖型細胞（栄養細胞）につくりかえられる。短期間しか存在しない水たまりのなかで栄養細胞は非常に速いスピードで増殖する。そして乾燥が近づくと，水たまりが消失する前に，すばやく休眠シストになる。単細胞生物の休眠シスト形成に関する研究は20世紀初頭より始まったが，そのしくみの一端を分子の言葉で語れるようになったのはごく最近のことである。本稿では，土壌性繊毛虫コルポーダ（Colpoda cucullus Nag-1）の休眠シス…