Yazar "Turan, Servet" için Makale Koleksiyonu listeleme
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An alternative composite approach to tailor the thermoelectric performance in SiAlON and SiC
Kaya, Pınar; Gregori, Giuliano; Yordanov, Petar; Ayas, Erhan; Habermeier, Hanns-Ulrich; Maier, Joachim; Turan, Servet (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 ... -
Analytical transmission electron microscopy observations on the stability of TiCN in electrically conductive alpha-beta SiAlON/TiCN composites
Yurdakul, Hilmi; Turan, Servet; Ayas, Erhan; Tunckan, Orkun; Kara, Alpagut (Elsevier Sci LTD, 2014)Coating of alpha-beta SiAlON granules with TiCN powder led to a continuous 3D electrically conductive network formation. Here, the stability of TiCN grains following gas pressure sintering (GPS) and its effect on the ... -
Black ceramic pigments for porcelain tile bodies produced with chromite ores and iron oxide waste
Tanisan, Belgin; Turan, Servet (Korean Assoc Crystal Growth, Inc, 2011)In this study, two different natural chromite ores and iron oxide waste from the steel rolling industry were used as less expensive alternative raw materials for the synthesis of black ceramic pigments to be used in porcelain ... -
Boro/karbotermik ve karbotermik indirgeme yöntemiyle sentezlenen kalsiyum hekzaborürlerin incelenmesi
Yılmaz, Duygu; Savacı, Umut; Koç, Nurşen (2018)Bu çalışmada, iki farklı yöntemle sentezlenen CaB6 kristal yapısı ve toz morfolojisi incelenmiş ve sentez yönteminin, yapı üzerindeki etkisi Rietveld metodu ve TEM yardımıyla incelenmiştir. CaB6 tozları iki farklı yöntem ... -
Carbothermic reduction synthesis of calcium hexaboride using PVA-calcium hexaborate mixed gels
Yılmaz, Duygu; Savaci, Umut; Koç, Nursen; Turan, Servet (Elsevier Sci LTD, 2018)In this study, PVA-CaB6O10.5H2O precursor mixtures were prepared by coating the ceramic powders with PVA to synthesize CaB6 via carbothermal reduction. Boron loss, the main problem in the synthesis of borides, was reduced ... -
Characterization of lead glazed potteries from Smyrna (Izmir/Turkey) using multiple analytical techniques; Part I: Glaze and engobe
Özçatal, M.; Yaygingol, M.; Issı, Ali; Kara, Alpagut; Turan, Servet; Okyar, Fisun; Minceva-Sukarova, B. (Elsevier Sci LTD, 2014)Eighteen lead glazed potsherds from the Ayasuluk region (Smyrna) were characterized in order to have detailed knowledge of their production technology. Micro-Raman and scanning electron microscopy (SEM) with the combination ... -
Characterization of lead glazed potteries from Smyrna (Izmir/Turkey) using multiple analytical techniques; Part II: Body
Özçatal, M.; Yaygingol, M.; Issı, Ali; Kara, Alpagut; Turan, Servet; Okyar, Fisun; Minceva-Sukarova, B. (Elsevier Sci LTD, 2014)Lead glazed pottery was one of the most important ceramic ware groups for the Late Hellenistic, Roman, Byzantine and Ottoman cultures in Anatolia. They were produced in different places in Anatolia such as Tarsus, Iznik, ... -
Co-doped willemite ceramic pigments: Technological behaviour, crystal structure and optical properties
Özel, Emel; Yurdakul, Hilmi; Turan, Servet; Ardit, Matteo; Cruciani, Giuseppe; Dondi, Michele (Elsevier Sci LTD, 2010)Cobalt-doped willemite is a promising blue ceramic pigment, but some important aspects concerning crystal structure, optical properties and technological behaviour are still undisclosed. In order to get new insight on these ... -
Creep and recovery behaviors of chemically induced grafted low density polyethylene films containing silanized hexagonal boron nitride nanosheets
Seyhan, Abdullah Tuğrul; Tuna, Ayşegül; Durukan, Oya; Göncü, Yapıncak; Turan, Servet; Ay, Nuran (Amer Scientific Publishers, 2018)Few layers boron nitride nanosheets (BNNSs) were derived from precursors of specially synthesized micro-sized hexagonal boron nitrides (h-BNs) of large flakes through microfluidization. They were then considered promising ... -
Decolouration effect of WC addition on gas pressure sintered alpha-beta SiAlON ceramics
Ayas, Erhan; Kara, Alpagut; Mandal, Hasan; Turan, Servet; Kara, Ferhat (Elsevier Science BV, 2004)In this study, an attempt was made to mask an inhomogeneous gray colouration featured on the surfaces of the gas pressure sintered alpha-beta SiAlON ceramics containing 50% alpha and 50% beta SiAlONs in the form of spots. ... -
Effect of calcination on the production of sintered MgAl2O4 by using different local waste Al2O3 powders
Arianpour, Aslı Çakır; Turan, Servet (Springer, 2017)Magnesium aluminate spinel is one of the important synthetic minerals which have lots of applications in ceramic, refractories and chemical industries. In this research, two different types of alumina and magnesia sources ... -
Effect of heat treatment on green machinability of SiAlON compacts
Çelik, Ali; Yaman, Halil; Turan, Servet; Kara, Alpagut; Kara, Ferhat (Elsevier Science Sa, 2014)SiAlON based ceramics are promising materials for wear applications such as wire extrusion dies, pipe bending rollers, etc. due to their outstanding mechanical properties both at high and low temperatures. To be able to ... -
Effect of SiC addition on the thermal diffusivity of SiAlON ceramics
Akın, Seniz Reyhan Kushan; Turan, Servet; Gençoğlu, Pervin; Mandal, Hasan (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 ... -
Electric field effects on CNTs/vinyl ester suspensions and the resulting electrical and thermal composite properties
Yurdakul, Hilmi; Seyhan, Abdullah Tuğrul; Turan, Servet; Tanoğlu, Metin; Bauhofer, Wolfgang; Schulte, Karl (Elsevier Sci LTD, 2010)In this study, electrical conductivity of a vinyl ester based composite containing low content (0.05, 0.1 and 0.3 wt.%) of double and multi-walled carbon nanotubes with and without amine functional groups (DWCNTs, MWCNTs, ... -
An experimental and theoretical examination of the effect of sulfur on the pyrolytically grown carbon nanotubes from sucrose-based solid state precursors
Küçükayan, Gökçe; Ovali, Rasim; Ilday, Serim; Baykal, Beril; Yurdakul, Hilmi; Turan, Servet; Bengü, Erman (Pergamon-Elsevier Science LTD, 2011)Multi-walled carbon nanotubes (MWCNTs) were synthesized through pyrolysis of the sulfuric acid-carbonized byproduct of sucrose. While the presence of sulfur in the reaction media has a key role in the formation and population ... -
Fe-Cr siyah seramik pigment üretiminde ferrokrom kullanımı
Tanışan, Belgin; Turan, Servet (2010)Bu çalışmada, saf oksitlere göre daha ucuz hammaddeler laıllanarak. porselen karo bünyeleri için siyah Fe-Cr hematit pigmentlerin üretimi ve karalüerizasyonu amaçlanmıştır. Hematit ve ferrokrom ile üretilen pigmentlerin ... -
First-principles investigation of titanium doping into beta-SiAlON crystal in TiN-SiAlON composites for EDM applications
Kandemir, Ali; Sevik, Cem; Yurdakul, Hilmi; Turan, Servet (Elsevier Science Sa, 2015)Following the experimental work on the incorporation of titanium into beta-SiAlON crystal in TiN-SiAlON composites for electrical discharge machining (EDM) applications, Ti doping mechanisms in beta-Si6-z AlzOzN8-z have ... -
Hydrothermal synthesis of calcium hexaborate pentahydrate from local boric acid and its photoluminescence characteristic
Yılmaz, D.; Koç, N.; Turan, Servet (Springer, 2018)The aim of the study is to synthesize hydrated calcium hexaborates via a hydrothermal method with the use of local (obtained from Turkish deposits) boric acid. The effects of temperature and boric acid to water and calcium ... -
Identification of Ti incorporation into beta-SiAlON crystal structure through transmission electron microscopy techniques
Yurdakul, Hilmi; Turan, Servet (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 ... -
Incorporation of the transition metals (Cr and Fe) into beta-SiAlON crystal structure
Yurdakul, Hilmi; Turan, Servet (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 ...