Combinatorial Materials Development

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September, American Chemical Society Technology Vision The U. Chemical Industry.

Valler and D. Green , Drug Discovery Today 5 Higgs , K.

Bemis , I. Watson and J. Wikel , J. Holzwarth , P. Denton , H. Zanthoff and C. Miradatos , Catal. Today 67 Agrafiotis , R. Bone , F. Salemme and R. Soll US Assigned to 3-Dimensional Pharmaceuticals Inc. Schneemeyer , R. Madsen and C. Snively , G. Oskarsdottir and J. Lauterbach , Catal. Potyrailo and R. May , Rev. Bem , E. Erlandson , R. Gillespie , L.

تفاصيل ال٠نتج

Harmon , S. Schlosser and A. Cawse , Acc. Rose , Drug Discovery Today 7 Cummins , C.

Combinatorial Deposition for Materials Development | Guide

Andrews , J. Bentley and M. Cory , J. Agrafiotis and V. Lobanov , J. Agrafiotis , ibid.

Introductory Chapter: Genome of Material for Combinatorial Design and Prototyping of Alloys

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The results show that this technique is valuable for the quick, reliable and high-throughput determination of the film thickness distribution in combinatorial materials research. Importantly, it can also be applied to thin films that have been structured by shadow masking. Thin films are used in a wide variety of computing and communication applications although their fatigue behavior and its dependence on alloying elements are not very well known. In this paper, we present an experimental implementation of a novel high-throughput fatigue testing method for metallic thin films.

The methodology uses the fact that the surface strain amplitude of a vibrating cantilever decreases linearly from the fixed end to the free end.

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Therefore, a thin film attached to a vibrating cantilever will experience a gradient of strain and corresponding stress amplitudes along the cantilever. Each cantilever can be used to extract a lifetime diagram by measuring the fatigue-induced damage front that progresses along the cantilever during up to 10 8 load cycles.

These results were almost identical to those obtained from a study by combinatorial exploration. We investigated the charge—discharge characteristics of the Li Ni,Co,Ti O 2 powder library in a voltage range from 4. A combinatorial library of binary mixtures of ionic liquids with various mixing ratios was fabricated on a single sapphire substrate using the composition-spread technique combined with a continuous-wave infrared CW-IR laser deposition method; the mixtures were condensed in the form of micro-scale droplets. The mixing ratio within the droplets was examined by Raman spectroscopy. The contact angle of the droplets was found to systematically vary with the mixing ratio.

Their thermal behavior was characterized with an ultrahigh-vacuum laser microscope, revealing the dependence of the evaporation rate on the mixing ratio. We have applied a novel 'melt synthesis technique' rather than a conventional solid-state reaction to rapidly synthesize phosphor materials. Complex phosphor oxides are difficult to produce by conventional solid-state reaction techniques because of the slow reaction rates among solid oxides; as a result, the oxides form homogeneous compounds or solid solutions.

Therefore, melt synthesis techniques are suitable for preparing multi component homogeneous compounds and solid solutions. Versatile high-throughput characterization tools are required for the development of new materials using combinatorial techniques.


As a proof of concept, we measured the temperature-dependent resistance of Fe—Pd—Mn ferromagnetic shape-memory alloy materials libraries, revealing reversible martensitic transformations and the associated transformation temperatures. Magneto-optical screening measurements of a materials library identify ferromagnetic samples, whereas resistivity maps support the discovery of new phases. A distance sensor in the same setup allows stress measurements in materials libraries deposited on cantilever arrays.

A combination of these methods offers a fast and reliable high-throughput characterization technology for searching for new materials. Using this approach, a composition region has been identified in the Fe—Pd—Mn system that combines ferromagnetism and martensitic transformation. Initial identification of promising materials is realized by rapidly screening thin-film composition spread and thickness wedge samples using normalized IR emissivity imaging.

Combinatorial magnetron sputter deposition from elemental targets was used to create Fe—B composition spread type thin film materials libraries on thermally oxidized 4-in. Si wafers. The libraries were characterized by nuclear reaction analysis, Rutherford backscattering, nanoindentation, vibrating sample magnetometry, x-ray diffraction XRD and transmission electron microscopy TEM.

Young's modulus and hardness values were related to the annealing parameters, structure and composition of the films. The magnetic properties of the films were improved by annealing in a H 2 atmosphere, showing a more than tenfold decrease in the coercive field values in comparison to those of the vacuum-annealed films. The lack of a liquid phase in SiC hinders conventional crystal growth from the melt; consequently, SiC wafers still have low quality and are nearly times more expensive than Si wafers. To take advantage of the solution growth for improving the quality and reducing the cost of SiC, Ni addition to Si—Ti flux has been investigated.

A combinatorial approach was employed to accelerate the screening of metal flux for the SiC solution growth. We developed a compact continuous-wave infrared CW-IR laser deposition system for the high-throughput growth of organic single crystals. In this system, two CW-IR lasers are used for the sample heating and thermal evaporation of materials.