Articles written in Bulletin of Materials Science
Volume 23 Issue 5 October 2000 pp 413-418
A series of interpenetrating polymer networks (IPNs) of castor oil based polyurethane/polyacrylonitrile (PU/PAN: 80/20, 60/40, 50/50, 40/60 and 20/80) were synthesized by condensation reaction of castor oil with methylene diisocyanate and acrylonitrile, employing benzoyl peroxide (BPO) and ethylene glycol dimethylacrylate (EGDM) as initiator and crosslinkers respectively. The physical, chemical, optical and some of the mechanical properties of PU/PAN were studied. Phase stabilization in IPNs was investigated by wide angle X-ray (WAXS) profile analysis. Variation of crystal size distribution was studied in these polymer networks.
Volume 29 Issue 1 February 2006 pp 29-34 Semiconductors
By using wide angle X-ray scattering (WAXS) technique, we have characterized the epitaxial Al1–𝑥In𝑥N films (thickness, 150 nm) with 0 < 𝑥 < 1 grown by plasma source molecular beam epitaxy on sapphire (0001) at the low substrate temperature of 375°C, by computing the crystallite size in these samples. We observe that the crystallite size decreases with increase in the concentration of indium and that the band gap in these samples has a direct correlation with the crystallite size.
Volume 30 Issue 5 October 2007 pp 503-510 Single Crystals
Wide-angle X-ray scattering (WAXS) recordings were carried out on raw Dharwar cotton fibres available in Karnataka. Using this data and employing linked atom least squares (LALS) method, we report here the molecular and crystal structure of these cotton fibres. Employing structural data, we have computed elastic moduli tensor components of these fibres. From these investigations, it turns out that the intrinsic strains present in the fibre arise due to hydrogen bonds and not covalent bonds, which is a significant result.
Volume 34 Issue 7 December 2011 pp 1583-1590
The present study is concerned with changes of microcrystalline parameters in NB4D2 (
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