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Toplam kayıt 31, listelenen: 1-10
Tailoring the properties of spark plasma sintered SiAlON containing graphene nanoplatelets by using different exfoliation and size reduction techniques: Anisotropic mechanical and thermal properties
(Elsevier Sci LTD, 2018)
SiAlON ceramics are intensively used in different areas but still there is a need to improve the mechanical and thermal properties as well as ease of machinability and reduce the weight. In this study, the effect of graphene ...
Optimization of ?-sialon microstructure by heat treatment
(2008)
Nd-doped ?-SiAlON starting composition (Nd0.33Si 9.38Al2.62O1.62N14.38) was prepared by gas pressure sintering at 1825°C for 3 hrs. In order to explore the effect of post heat treatment on the developments of elongated ...
Effect of SiC addition on the thermal diffusivity of SiAlON ceramics
(Elsevier Sci LTD, 2017)
Despite the fact that thermal conductivity is a crucial parameter for SiAlON ceramics with respect to their suitability in various applications, including high-temperature structural components, wear parts, and cutting ...
An alternative composite approach to tailor the thermoelectric performance in SiAlON and SiC
(Elsevier Sci LTD, 2017)
The thermoelectric properties of SiAlON and SiC based composites prepared by adding TiCN (5 and 10 vol.%) as a particulate or as a segregated three-dimensional network were investigated. Although the volume fraction of the ...
Utilization of a phosphate ester as a dispersant for SiAlON based ceramics
(Trans Tech Publications LTD, 2007)
Aqueous dispersions of SiAION forming powders (Si3N4, AIN and Y2O3) were obtained. Dispersibility of powders was found to be improved by addition of sodium tripolyphosphate. Stable aqueous suspensions of SiAION forming ...
Towards atomic scale engineering of rare-earth-doped SiAlON ceramics through aberration-corrected scanning transmission electron microscopy
(Pergamon-Elsevier Science LTD, 2011)
Direct visualization of rare earths in alpha- and beta-SiAlON unit-cells is performed through Z-contrast imaging technique in an aberration-corrected scanning transmission electron microscope. The preferential occupation ...
Incorporation of the transition metals (Cr and Fe) into beta-SiAlON crystal structure
(Elsevier Sci LTD, 2011)
Outstanding properties for SiAlON ceramics can be obtained by tailoring the microstructure through alpha-SiAlON and beta-SiAlON phase content as well as a type of secondary phases. It is so far well known that while some ...
Identification of Ti incorporation into beta-SiAlON crystal structure through transmission electron microscopy techniques
(Elsevier Sci LTD, 2012)
In this paper, we report the transmission electron microscopy (TEM) observations on the incorporation of Ti transition metal element into beta-SiAlON crystal structure in a bulk beta-SiAlON-TiN composite material. Considering ...
Optimization of the optical properties of alpha-SiAlON through a decrease in starting powder size
(Elsevier Sci LTD, 2015)
In the present work, the effects of initial powder size on the sintering behavior and optical properties of Dy-alpha-SiAlON ceramics produced by the SPS technique are investigated. The powders were prepared using high ...
The production of beta-SiAlON ceramics with low amounts of additive, at low sintering temperature
(Elsevier Sci LTD, 2010)
In the present work nano-sized powder of beta-SiAlON was produced using a wet milling process. Different milling times and mediums (methyl ethyl keton, ethanol and toluene as solvents, polyethyleneglicol, oleic acid, sodium ...