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Kinetics of the alpha-beta Phase Transformation in Seeded Si3N4 Ceramics
(Science of Sintering, 2008)
The alpha-beta phase transformation in Si3N4 was studied for seeded samples using all Y2O3-Al2O3 mixture as a sintering aid. The concentration of beta-seeds varied from 0 to 5 wt.%. The results showed that alpha-beta phase ...
Structure and surface composition of NiCr sputtered thin films
(Science of Sintering, 2006)
Thin films of nichrome were deposited by d.c. sputtering of a target (80%Ni - 20%Cr w.t.) by Ar+ ions at a working pressure of 10(-1) Pa and at room temperature. The phase composition and grain size were studied by X-ray ...
Crystal structure analysis of Nd-doped ceria solid solutions
(Science of Sintering, 2008)
This paper deals with Nd-doped ceria solid solutions: Ce(1-x)Nd(x)O(2-delta) with x ranging from 0 to 0.25. Six different powders were synthesized by applying the method based on self-propagating room temperature reaction ...
Preparation of biomorphic SiC ceramics
(Science of Sintering, 2008)
This paper deals with a new method for producing non-oxide ceramic using wood as a template. SiC with a woodlike microstructure has been prepared by carbothermal reduction reactions of Tilia wood/TEOS composite at 1873K. ...
Far-infrared spectroscopy of a nanocomposite of polyvinyl alcohol and lead sulfide nanoparticles
(Science of Sintering, 2006)
A nanocomposite consisting of lead sulfide (PbS) nanoparticles (NPs) with average diameter of 26 angstrom, according to absorption threshold shift, and polyvinyl alcohol (PVA) was characterized using far-infrared absorption ...
Influence of the electron-phonon iinteraction on phonon heat conduction in a molecular nanowire
(Science of Sintering, 2006)
A model for phonon heat conduction in a molecular nanowire is developed. The calculation takes into account modification of the acoustic phonon dispersion relation due to the electron-phonon interaction. The results obtained ...