Yazar "Özel, Emel" için WoS İndeksli Yayınlar Koleksiyonu listeleme
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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 ... -
Effect of electrolytes on sanitaryware slip
Özel, Emel; Ay, Nuran; Pütün, Ersan (Amer Ceramic Soc, 1999)Slip viscosity is used widely in controlling ceramic casting slip. The viscosity of slip changes with the amount and type of electrolyte. -
Effect of Kaolin Type on Pyroplastic Deformation of Sanitaryware Porcelain Body
Hopa, Derya Yeşim; Özel, Emel (Gazi University, Fac Engineering Architecture, 2016)Pyroplastic deformation is one of the major problems of sanitaryware production, because of high temperature firing and high amount of glassy phase and this problem can be reduced by controlling of amount of glassy and ... -
Effect of the Chemical Composition on The Pyroplastic Deformation of Sanitaryware Porcelain Body
Tuncel, Derya Yeşim; Kara, Mustafa Kerim; Özel, Emel (IOP Publishing LTD, 2011)Pyroplastic deformation is the bending of a ceramic specimen caused by gravity during heat treatment. It can be defined as the loss of shape of product during its firing. Pyroplastic deformation is related to properties ... -
Effect of the milling process on the properties of CoFe2O4 pigment
Yungevis, Hasan; Özel, Emel (Elsevier Sci LTD, 2013)In this study, CoFe2O4 pigments were synthesised using both co-precipitation and conventional ceramic methods. Pigment particles prepared using the conventional ceramic method were subsequently milled to submicron size. ... -
Effect of the Particle Size of Hard Raw Materials on Physical Properties of Sanitaryware Porcalain
Özel, Emel; Tuncel, Derya Yeşim; Kara, Mustafa Kerim (Gazi University, Fac Engineering Architecture, 2011)Sanitaryware porcelain is a kind of a group of glassy porcelains called "vitreous china". The raw materials quartz sand and feldispar used for production of these porcelains are hard materials. It is well known that particle ... -
Effect of the processing on the production of cordierite-mullite composite
Özel, Emel; Kurama, Semra (Elsevier Sci LTD, 2010)In this study, effect of process on the production of cordierite mullite composite was studied. For this reason two different processing methods were used in the production of cordierite mullite composites. In first process, ... -
Effects of waste glass or boric acid addition on the stain resistance of polished porcelain stoneware
Ünlüer, A.; Özel, Emel (Techna Srl, 2011)This study evaluates the effects of adding waste bottle glass or boric acid as fluxing agents on the stain resistance of a porcelain stoneware tile body Different amounts of waste bottle glass, 5, 10 and 15 wt. %, were ... -
Electrocoagulation of yogurt industry wastewater and the production of ceramic pigments from the sludge
Un, Umran Tezcan; Özel, Emel (Elsevier Science BV, 2013)In this study, the treatment of strained (condensed) yogurt wastewater using a uniquely designed iron reactor with electrocoagulation and the sludge produced during the electrocoagulation as a raw material in the production ... -
Electrodialysis for the removal of copper ions from wastewater
Öğütveren, Ülker Bakır; Koparal, Ali Savaş; Özel, Emel (Taylor & Francis Inc, 1997)In this work,the feasibility of the removal of Cu2+ ions in a model solution and a sample of rinse water have been studied using a recirculating electrodialysis system. Full removal of Cu2+ has been achieved from its dilute ... -
Evaluation of pyroplastic deformation in sanitaryware porcelain bodies
Tuncel, Derya Yeşim; Özel, Emel (Elsevier Sci LTD, 2012)In this study, the effect of composition on the pyroplastic deformation of a sanitaryware porcelain bodies was investigated. Systematic compositional arrangements were made to combine different amounts of SiO2/Al2O3 and ... -
How active silica affects slip properties of sanitaryware
Özel, Emel; Kurama, S; Ay, Nuran (Amer Ceramic Soc, 2002)… -
The influence of different CaO source in the production of anorthite ceramics
Kurama, Semra; Özel, Emel (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 ... -
The mechanism for the colour change of iron chromium black pigments in glazes through transmission electron microscopy techniques
Yurdakul, Hilmi; Turan, Servet; Özel, Emel (Elsevier Sci LTD, 2011)Black iron chromium (Fe-Cr) bearing oxide pigments are generally utilised as effective colourants in a wide variety of applications. However, in the case of their use within ZnO-containing glazes, they yield an undesirable ... -
Production and characterisation of granulated frit to achieve anorthite based glass-ceramic glaze
Tunalı, A.; Özel, Emel; Turan, Servet (Elsevier Sci LTD, 2015)For the development of matt-transparent glass ceramic coating applied on the porcelain tile, the CaO-Al2O3-SiO2 system was studied. Sinterization and devitrification behavior of granulated frits and viscosity change with ... -
Production and characterisation of iron-chromium pigments and their interactions with transparent glazes
Özel, Emel; Turan, Servet (Elsevier Sci LTD, 2003)In this study, production and characterisation of pigments by using less expensive raw materials such as limonite and chromite was undertaken. The resulting pigments were characterised by using X-ray diffraction (XRD) and ... -
Production and characterisation of pigments produced using grinding waste from cast iron foundry
Turan, Servet; Inceefe, Y; Özel, Emel (Trans Tech Publications LTD, 2004)The brown and black pigments are generally synthesised from different powders such as iron (111) and chromium (111) oxide powders. In this study, iron-chromium pigments by using grinding waste from cast iron foundry as ... -
Production of blue willemite based pigments by using ZnO powder produced from metal slags
Özel, Emel; Turan, Servet (Trans Tech Publications LTD, 2004)In this study, production of pigments by adding different amount of Co and calcination at different temperatures were under-taken. Co-willemite blue pigments were produced by using ZnO powders produced from metal slags. ... -
Production of brown and black pigments by using flotation waste from copper slag
Özel, Emel; Turan, Servet; Coruh, S; Ergün, ON (SAGE Publications LTD, 2006)One of the major problems in copper-producing Countries is the treatment of the large amount of copper slag or copper flotation waste generated from copper slag which contains significant amounts of heavy metals Such as ... -
Production of brown pigments for porcelain insulator applications
Özel, Emel; Ünlütürk, G; Turan, Servet (Elsevier Sci LTD, 2006)In this study, production of brown pigment for the ceramic insulator applications by using inexpensive natural raw materials or waste materials was undertaken. Different pigment compositions were designed, synthesised and ...