1384-1076/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.newast.2008.03.007 * Tel.: +1 614 292 1888; fax: +1 614 292 2928. E-mail address: [email protected] Results are presented from detailed study of inverse processes of photoionization and electron-ion recombination of (hm + Al XI Al XII + e), (hm + Al XII Al XIII + e), (hm + Si XII Si XIII + e), and (hm + Si XIII Si XIV ...

M–Si–N and M–Si ~M5Mo, Ta, or W! thin films, reactively sputtered from M5Si3 and WSi2 targets, are examined as diffusion barriers for aluminum metallizations of silicon. Methods of analysis include electrical tests of shallow-junction diodes, He backscattering spectrometry, x-ray diffraction, transmission electron microscopy, scanning electron microscopy, and secondary-ion-mass spectrometry. At...

The mechanical properties of Al-7 wt.% Si can be enhanced by structural modifications of its eutectic phase. Addition of low concentrations of certain elements, in this case 150 wt-ppm Sr, is enough to cause a transition from a coarse plate-like Si structure to a finer coralline one. To fully understand the operating mechanism of this modification, the composition of the eutectic Si phase in un...

To discuss the possibility of phosphorus removal from silicon by the solidification refining with Si–Al melts, the distribution of phosphorus between solid silicon and the liquid Si–Al alloy at 1173–1373 K was investigated. In the present study, the distribution of phosphorus was examined by the temperature gradient zone melting method, where a phosphorus containing molten Si–Al zone was passed...

The Me₂Si-bridged ansa-Cp/amido half-metallocene, [Me₂Si(η⁵-Me₄C₅)(NtBu)]TiCl₂, termed a "constrained-geometry catalyst (CGC)", is a representative homogeneous Ziegler catalyst. CGC derivatives with the [1,2]azasilinane framework, in which the amide alkyl substituent is joined by the Si-bridge, were prepared, and the catalytic performances of these species was studied. Me₄C₅HSi(Me)(CH₂CH=CH₂)-N...

Mima, Tatsuya, Takashi Nagamine, Kaori Nakamura, and Hir1990, 1991; Sinclair and Burton 1993) showed that neuronal oshi Shibasaki. Attention modulates both primary and second soactivity in SII shows spatial as well as modality convergence matosensory cortical activities in humans: a magnetoencephaloand greater stimulus specificity dependent on SI activity. This graphic study. J. Neurophysiol. 8...