نتایج جستجو برای: nanostructured multilayers

تعداد نتایج: 20888  

1999

13. ABSTRACT (Maximum 200 words) Prompted by the prediction of Cohen and coworkers that beta carbon nitride may have properties similar to diamond, there have been many attempts to synthesize this hypothetical metastable material. We successfully synthesized this material via epitaxial stabilization using TiN(lll) and ZrN(lll) as the growth template. The coatings were CN/TiN or CN/ZrN multilaye...

Journal: :Macromolecular bioscience 2007
Lajos P Balogh Shawn M Redmond Peter Balogh Houxiang Tang David C Martin Stephen C Rand

Ultrathin multilayers are important for electrical and optical devices, as well as for immunoassays, artificial organs, and for controlling surface properties. The construction of ultrathin multilayer films by electrostatic layer-by-layer deposition proved to be a popular and successful method to create films with a range of electrical, optical, and biological properties. Dendrimer nanocomposit...

Journal: :Carbohydrate polymers 2012
Marta Westwood Andrew R Kirby Roger Parker Victor J Morris

A quartz crystal microbalance with dissipation monitoring (QCMD) has been used to monitor the adsorption and structure of lysozyme monolayers and multilayers, and poly-L-lysine (PLL)-polygalacturonic acid (PGalA) multilayers at a solid-liquid interface using freshly-cleaved mica as a substrate. QCMD measurements were complemented with atomic force microscopy (AFM). AFM images revealed that lyso...

1999
Gary S. Was L. E. Rehn

Phase formation was studied in ion-irradiated multilayer and coevaporated Ni-20 at. % Al films supported by Cu, MO, and Ni transmission electron microscopy (TEM) grids. Irradiation with either 700-keV Xe or 1.7-MeV Xe, to doses sufficient to homogenize the multilayers 07.5X 1015 cmm2), resulted in the formation of metastable supersaturated y and HCP phases in both film types. Post-irradiation a...

Journal: :Science 2012
Tongjai Chookajorn Heather A Murdoch Christopher A Schuh

Nanostructured metals are generally unstable; their grains grow rapidly even at low temperatures, rendering them difficult to process and often unsuitable for usage. Alloying has been found to improve stability, but only in a few empirically discovered systems. We have developed a theoretical framework with which stable nanostructured alloys can be designed. A nanostructure stability map based ...

Journal: :Applied optics 2004
David L Windt Soizik Donguy John Seely Benjawan Kjornrattanawanich

We compare the reflectance and stability of multilayers comprising either Si/Mo, Si/Mo2C, Si/B4C, Si/C, or Si/SiC bilayers, designed for use as extreme-ultraviolet (EUV) reflective coatings. The films were deposited by using magnetron sputtering and characterized by both x-ray and EUV reflectometry. We find that the new Si/SiC multilayer offers the greatest spectral selectivity at the longer wa...

2012
Chien-Chih Huang Chin-Chung Yu Shih-Yuan Chen Yeong-Der Yao Jun-Yang Lai

By making use of an e-beam deposition system, the [Co(2 Å)/Pd(10 Å)]15 multilayers were prepared on a Si(100) substrate and anodized aluminum oxide [AAO] templates with average pore diameters of around 185, 95, and 40 nm. The mechanism of magnetization reversal of the Co/Pd multilayers was investigated. Wall motion was observed on the Co/Pd multilayers grown on the Si substrate. A combination o...

2013
Roger Kirby Aliekber Aktag Abant Izzet Baysal Steven A. Michalski Lanping Yue Roger D. Kirby Steven Michalski

Formation of an anisotropy lattice in Co/ Pt multilayers by direct laser interference patterning" (2006). Roger Kirby Publications. 2. We report on the use of direct laser interference patterning to form an " anisotropy " lattice in Co/ Pt thin film multilayers. Co/ Pt multilayers have been extensively studied and, for the compositions studied here, are characterized by strong perpendicular mag...

2008
Saban M. HUS

Multilayer thin films have been attracting attention for half-century due to many possible applications ranging from protective coating to Laser Diodes. State of the art production techniques, made it possible to deposit highquality multilayered thin films with atomically precise interfaces between different materials, including complex oxides with large and complicated unit cells [1]. Despite ...

Journal: :The Journal of Cell Biology 1972
Mark Nameroff

Chondrocytes from the vertebral columns of 11-day chick embryos were cultured in the continuous presence of 5-bromodeoxyuridine (BUdR) Under these conditions the cells form multilayers but synthesize little extracellular matrix as determined by toluidine blue metachromasia or sulfate-(35)S incorporation into polysaccharide. Myogenic cells from the breast muscles of 11-day chick embryos formed m...

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