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Toplam kayıt 286, listelenen: 119-138
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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 ... -
Image analysis of sulfate attack on hardened cement paste
(Elsevier Sci LTD, 2008)This paper presents an investigation conducted on the sodium sulfate resistance of Portland cements with various C(3)A contents, and on two blended cements produced by replacing 40% Of low C3A cement with fly ashes having ... -
Improvement in the Oxidation Resistance of beta-SiAlON Ceramics Produced from Mechanically Milled Powders
(Trans Tech Publications LTD, 2012)In the present study the oxidation behavior of beta-SiAlON ceramics, which were produced from conventional and high energy mechanical milled powders, was investigated. High energy mechanically milled powders have lower ... -
Improvements on corrosion behaviours of MgO-spinel composite refractories by addition of ZrSiO4
(Elsevier Sci LTD, 2012)Corrosion behaviours of MgO-spinel-ZrSiO4 compositions were investigated. The influence of corrosion resistance based on the microstructural changes occurred due to the solubilities of constituents in corroded regions was ... -
Improvements on the mechanical properties and thermal shock behaviours of MgO-spinel composite refractories by ZrO2 incorporation
(Elsevier Sci LTD, 2012)Microstructural features and improvements on the mechanical properties and thermal shock behaviours of MgO-spinel composite refractories with ZrO2 addition were examined. ZrO2 incorporation into MgO-spinel led to improvements ... -
Improvements on the thermal shock behaviour of MgO-spinel composite refractories by incorporation of zircon-3 mol% Y2O3
(Elsevier Sci LTD, 2012)The effects of incorporations of zircon-3 mol% Y2O3 (Y) into MgO-spinel (M S) compositions to improve mechanical properties and thermal shock behaviour were investigated. Mechanical properties were measured, R R parameters ... -
In-situ synthesis and densification of HfB2 ceramics by the spark plasma sintering technique
(Elsevier Sci LTD, 2017)Hafnium diboride (HfB2) ceramics were in-situ synthesized and densified by the spark plasma sintering (SPS) method using HfO2 and amorphous boron (B) as starting powders. Both synthesis and densification processes were ... -
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 ... -
Influence of beta-Si3N4 particle size and heat treatment on microstructural evolution of alpha:beta-SiAlON ceramics
(Elsevier Sci LTD, 2011)In the present study, we report the effects of starting beta-Si3N4 particle sizes and post-sintering heat treatment on microstructure evolution and mechanical properties of prepared alpha-beta SiAlON ceramics. Three different ... -
Influence of cell aspect ratio on architecture and compressive strength of titanium foams
(Elsevier Science Sa, 2011)Titanium foams have been of interest in dental and orthopedic implants over the past few decades on account of their excellent mechanical properties, chemical stability, and biocompatibility. A powerful tool, X-ray computed ... -
The influence of different CaO source in the production of anorthite ceramics
(Elsevier Sci LTD, 2009)The effects of starting raw materials and firing conditions oil anorthite (CaAl2Si2O8) phase formation are investigated by differential thermal analysis (DTA)-thermogravimetry (TG) and X-ray powder diffraction (XRD). Four ... -
Influence of post-annealing on electrical, structural and optical properties of vanadium oxide thin films
(2013)Vanadium oxide thin films were grown onto quartz substrates using the pulsed DC reactive magnetron sputtering technique at room temperature and afterwards post annealed under vacuum conditions in the temperature range from ... -
Influence of SiC addition on tribological properties of SiAlON
(Elsevier Sci LTD, 2011)The tribological properties of gas pressure sintered SiAlON and its composite with 18 wt% silicon carbide (SiC) against two different mating materials, i.e., alumina and SiAlON are evaluated. SiAlON and SiAlON-18%SiC ... -
The influence of zircon in a model aluminosilicate glass tank forehearth refractory
(Elsevier Sci LTD, 2003)Standard aluminosilicate forehearth refractories are normally fabricated with a small proportion of zircon to improve their performance. To identify possible bases for the action of the zircon, fine-grain aluminosilicate ... -
Interactions between a leadless glaze and a biscuit fired bone China body during glost firing - part III: effect of glassy matrix phase
(Elsevier Sci LTD, 2003)As the final part of the study, the interactions between a commercial leadless glaze and a simulated bone china body glass during glost firing at different temperatures have been investigated. Advanced techniques such as ... -
Interface roughness and exchange bias - Coercivity ratio in Pulsed-DC magnetron sputtered NiFe/IrMn/CoFe exchange bias trilayers
(2013)Ta/Ru/Ta/Ni81Fe19/Ir20Mn 80/Co90Fe10 exchange bias multilayer was grown by using pulsed DC unbalanced magnetron sputtering technique. The deposition pulse frequency of the NiFe seed layer has been varied between 10 - 50 ... -
An investigation of Hellenistic period pottery production technology from Harabebezikan/Turkey
(Elsevier Sci LTD, 2011)Upper ancient Mesopotamia is a part of Southeastern Anatolia and irrigated by the Euphrates and Tigris rivers. It has several sites, ruins and monuments belonging to ancient civilizations. Among these, an ancient site ... -
Investigation of parameters affecting grain growth of sintered magnesite refractories
(Elsevier Sci LTD, 2005)The parameters influencing grain size of sintered magnesite such as temperature (1700 and 1800degreesC), time (19 and 50 min), cooling rate (5, 10 and 25degreesC min(-1)) and various particle size (-3; +3,-5; +5,-8; +8,-10 ... -
Investigation of porosity of ceramic tiles by means of image analysis method
(Korean Assoc Crystal Growth, Inc, 2014)Amount, size and distribution of porosity are among the important factors which affect physical and mechanical properties of ceramic tiles. In this study, the effect of flux variation in porcelain tile recipes and different ... -
An investigation of pottery production technology for the West Slope wares from Dorylaion (Eskisehir/Turkey)
(Soc Espanola Ceramica Vidrio, 2013)Researches in the field of pottery production technology in ancient times, done in different settlements during the same period, may contribute to know relationships established within the different cultural communities. ...