Thermo-kinetik investigation of crystallizing process of chromium vanadium white irons

The refinement of the structure of chromium- vanadium cast irons, as well as of other alloys, appreciably increases their operation characteristics. One of the methods of favorable structure receiving is high freezing rate of alloy, what is shown in the work

Automated scanning probe microscopy for combinatorial polymer research

With the development of combinatorial material research (CMR) methods and high throughput experimentation (HTE) workflows for polymer research applications, the increasing demand for automated, high throughput characterization methods is evident. Soln.-based characterization methods like NMR, GPC, DSC, viscosimetry and UV-Vis as well as fluorescence plate readers are already available. Here we report on the incorporation of automated scanning probe microscopy in the HTE-workflow by demonstrating the evaluation of surface properties and topogs. for thin polymer film libraries

Application of (automated) atomic force microscopy to combinatorial polymer materials research

Scanning probe microscopy was combined with combinatorial techniques to study of the morphol. of polymer blends and metallo-supramol. block copolymer libraries. Morphol. and cond. measurements of carbon black / poly(dimethylsiloxane) composites demonstrated the relation between sample prepn., morphol., and material properties. Phase sepn. was studied of a metallo-supramol. block copolymer library based on terpyridine-functionalized polystyrene - Ru terpyridine - poly(ethylene oxide) block copolymer. By varying the block length of the polyoxyalkylene blocks and their vol. ratio, the whole range of thin film morphologies were obsd., from lamellar to spherical phase sepn

Automated scanning probe microscopy as a new tool for combinatorial polymer research: Conductive carbon black/poly(dimethylsiloxane) composites

A systematic investigation into the surface properties of siloxane rubber/carbon black (CB) nanocomposites has been performed, using an automated scanning probe microscope. In this way the influence of CB concentration and curing rate of the siloxane rubber matrix on roughness and conductivity of the composites was studied. Decreasing the curing rate while keeping the CB concentration resulted in a decrease in both roughness and surface conductivity, which can be explained by an additional siloxane-rubber layer formed during curing