A5057475663- Advanced materials and composites
- Organic Electronics and Photovoltaics
- Advanced ceramic materials synthesis
- Luminescence and Fluorescent Materials
- Powder Metallurgy Techniques and Materials
- Injection Molding Process and Properties
- Metal and Thin Film Mechanics
- Advanced Materials Characterization Techniques
- Photochemistry and Electron Transfer Studies
- Adhesion, Friction, and Surface Interactions
- Diamond and Carbon-based Materials Research
- Conducting polymers and applications
- Hydrogen Storage and Materials
- Electron and X-Ray Spectroscopy Techniques
- Molten salt chemistry and electrochemical processes
- Tribology and Lubrication Engineering
- Porphyrin and Phthalocyanine Chemistry
- Catalysis and Hydrodesulfurization Studies
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Nuclear Materials and Properties
- Molecular Junctions and Nanostructures
- Chemical synthesis and alkaloids
- Cultural Heritage Materials Analysis
- Gear and Bearing Dynamics Analysis
- Photochromic and Fluorescence Chemistry
University of Wuppertal
2015-2021
Polymer Institute of the Slovak Academy of Sciences
2017
Universidad Autónoma de Madrid
2006
Bayer (Germany)
1991
Globe University
1969
Abstract Hard metals are in great demand areas that require high hardness and wear resistance. Tungsten carbide excels this area, especially with cobalt as a binder phase [1, 2]. For microstructural characterization, choosing an applicable preparation method is the most essential step. Publications concerning WC-Co materials were published by National Physical Laboratory Teddington, England, notably Prof. B. Roebuck, though influence of methods was not entirely explored. Electron backscatter...
Synthesis and photophysical characterization of alternating indigo–fluorene copolymers.
In this work, we present a novel small molecule based on dithienylthienothiadiazole units (named SM1) acting as an efficient component in ternary blend organic solar cells to modify the hole extraction at interface. Our findings show that SM1 suppresses surface recombination and enhances open-circuit voltage (Voc). By introducing host system composed of poly(3-hexylthiophene) (P3HT) [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), obtained Voc values up 0.75 V fill factors larger than 70%...
In (<italic>cis</italic>) cyclopentadithiophene, the large Stokes shift is due to a bond length change whereas with α2 (<italic>trans</italic>) it involves in dihedral angle.
This paper presents the influence of milling media on structure and morphology WC–Co powders for sintered tools. have been milled in two different organic media, acetone isohexane. The characterisation as-milled samples has done by X-ray diffraction, scanning electron microscopy (SEM) differential calorimetry. mean crystallite size decreases with time processed acetone, while case isohexane, stays at a relatively constant value when increasing duration. calculated is below 50 nm any...
In a copolymer with indigo and CPDT, fast ESPT and/or intrachain energy transfer are observed whereas conformational relaxation is absent.
Abstract This article introduces various aspects of a diploma thesis on the theme ‘tin pest in organ pipes’ submitted to Fachhochschule Cologne. One aspect concerns difference between corrosion and tin pipes, another explains polymorphous property tin. is followed by report research documentation 12 suspected cases pest. A case an alloy lead Estonian receives particular attention, not least because hitherto it has often been assumed that could only occur pure Finally, necessary conditions...
Savings in man-hours of approximately 50% were gained with even greater reduction elapsed time when fluorescent x-ray emission replaced classical wet methods to determine Sb (2%–7%), Sn (0.15%–0.75%) and As (0.05%–0.60%). No statistically significant differences found results, scatter was less the method. The problem segregation sample eliminated, a surface required quality obtained by special method preparation which 5–20 ml molten lead poured into 1 liter water, resulting granules pressed...
Copolymers alternating the BAI with thiophene-based moieties showed absorption and fluorescence in NIR were found to prevent ACQ.
Abstract Additive in Polyamiden wie Nukleierungsmittel oder Verstärkungsmittel beeinflussen das Kristallisations‐ und Erstarrungsverhalten. Während der Herstellung von Probekörpern bilden sich morphologische Strukturen, die Verarbeitungsschwindung, den linearen Ausdehnungskoeffizienten Dimensionsänderung während Wasseraufnahme beeinflussen. Anhand Volumenänderungen wird Zusammenhang zwischen allen drei Raumrichtungen verständlich dargestellt.
Abstract not Available.