Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 286, listelenen: 181-200
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Modifying ultrafast optical response of sputtered VOX nanostructures in a broad spectral range by altering post annealing atmosphere
(IOP Publishing LTD, 2015)Nanostructured VOX thin films were grown in a dc magnetron sputter system under two different Ar:O-2 gas flow ratios. The films were annealed under vacuum and various ratios of O-2/N-2 atmospheres. The insulator-to-metal ... -
The third order nonlinear optical characteristics of amorphous vanadium oxide thin film
(Springer, 2011)We studied the nonlinear absorptive characteristics (saturation intensity threshold and effective nonlinear absorption coefficients) and nonlinear refraction in a 50-nm-thick VO (x) thin amorphous film prepared by pulsed ... -
Spark plasma sintering of Co-WC cubic boron nitride composites
(Elsevier Science BV, 2009)25 vol.% cubic boron nitride (cBN) added tungsten carbide (WC) powders containing 6 wt.% Co (WC-6Co) were densified by spark plasma sintering (SPS) technique under different experimental conditions and the effect of cBN ... -
The effects of sintering temperature on phase and pore evolution in porcelain tiles
(Elsevier Sci LTD, 2017)The phase and pore evolution of porcelain tiling against sintering temperature are investigated in this study. A standard porcelain tile composition was sintered at nine different temperatures between 1150 and 1230 degrees ... -
The effect of the wet-milling process on sintering temperature and the amount of additive of SiAlON ceramics
(Elsevier Sci LTD, 2010)In this study, nano-sized SiAlON powders were produced by wet milling at elevated speeds as a top-to-bottom process. Before the milling process, different milling times and mediums were performed for the determination of ... -
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 ... -
A comparison of sintering techniques using different particle sized beta-SiAlON powders
(Elsevier Sci LTD, 2012)In the present study sintering behavior and mechanical properties of beta-SiAlON ceramics were investigated using different sintering techniques (gas pressured sintering (GPS), pressureless sintering and spark plasma ... -
The Effect of Porosity and Glassy Phase Amount of Porcelain Tiles on Ultrasonic Velocity
(Australian Ceramic Society, 2015)Non-destructive testing (NDT) has been playing critical role in processing, testing and structural evaluation of materials. Ultrasonic testing is a widely used characterization method in non-destructive testing (NDT). The ... -
Design of Alternative Composite Material to Available Tractor Cabins
(Springer, 2016)All mobile machinery is at the risk of rolling over, depending on the machinery characteristics the need to protect operator from the risk of being injured or causing death due to rollover has been of prime importance in ... -
Investigation properties of BaO/RO-Al2O3-R2O3-B2O3-SiO2 glass-ceramic sealants for solid oxide fuel cell
(Australian Ceramic Society, 2017)Glass-ceramics are commonly used as sealing materials for planar solid oxide fuel cells (SOFCs). The major requirements of stack and module builders for these materials are the stability of the coefficient of thermal ... -
Mineralogical technological of underclays and properties in Sile Region, Istanbul, Turkey
(Techna Srl, 2007)Sile Region, northeastern Istanbul, includes the most important underclay deposit of Turkey In the area, Upper Cretaceous calc-alkaline volcanic rocks are the major parent rocks of the Neogene sequence composed of plastic ... -
Wear properties of alpha- and alpha/beta-SiAlON ceramics obtained by gas pressure sintering and spark plasma sintering
(Elsevier Sci LTD, 2011)In this study, alpha- and alpha/beta-SiAlON materials, doped with Y(2)O(3) and Nd(2)O(3), were sintered using two different sintering processes: spark plasma sintering (SPS) and gas pressure sintering (GPS). The wear and ... -
Wear behaviour of alpha- and alpha/beta-SiAlON ceramics stabilized with Nd2O3 and Y2O3
(Elsevier Sci LTD, 2009)alpha- and alpha/beta-SiAlON compositions, doped with Y2O3 or Nd2O3, were densified by gas pressure sintering (GPS). The wear and mechanical properties of the materials were investigated and compared to beta-Si3N4 materials. ... -
The reaction kinetics of rice husk based cordierite ceramics
(Elsevier Sci LTD, 2008)In this study, rice husk ash (RHA) was used as a silica source for cordierite production. Two different groups of samples were prepared in order to achieve the synthesis of cordierite. In the first group (HS-0), kaolinite, ... -
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 ... -
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 ... -
Effect of activators and calcination on luminescence properties of akermanite type phosphors
(Natl Inst Science Communication-Niscair, 2015)Akermanite type Ca2MgSi2O7 phosphors activated with different types of rare earths have been synthesized through a solid state reaction method under weak reducing atmosphere and/or open atmosphere. The phase properties of ... -
Sintering, microstructure, mechanical, and antimicrobial properties of HAp-ZnO biocomposites
(Wiley-Blackwell, 2010)The implant associated infection is widely considered as a major concern in the field of biomedical applications and this has been the driving force for developing HAp-based biomaterials with antibacterial additives for ... -
Hybrid processing and anisotropic sintering shrinkage in textured ZnO ceramics
(Natl Inst Materials Science, 2010)We have studied the combined effects of the templated grain growth and magnetic alignment processes on sintering, anisotropic sintering shrinkage, microstructure development and texture in ZnO ceramics. Suspensions of 0-10 ... -
The use of metarhyolites in porcelain stoneware production, Ilgin-Konya area, Turkey
(Techna Srl, 2010)The aim of this study is to determine the properties of metarhyolites from Konya (Turkey) area and to decide whether or not metarhyolites are suitable as a flux agent for porcelain stoneware tile production For this aim, ...
