Yazar "Özel, Emel" için Makale 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 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 kaolin type on pyroplastic deformation of sanitaryware porcelain body [Kaolen türünün saglik gereçleri porselen bünyesinin piroplastik deformasyonu üzerine etkisi]
Hopa, Derya Yeşim; Özel, Emel (Gazi Universitesi Muhendislik-Mimarlik, 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 Precursor Type on Zinc Oxide Formation and Morphology Development during Hydrothermal Synthesis
Semiconducting metal oxide sensors have been widely studied due to their small dimensions, low cost and low power consumption. ZnO is a potential material for gas sensor applications because of its high piezoelectric ... -
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, ... -
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 ... -
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 ... -
İnkjet Mürekkepleri İçin Mavi Co- Alüminat Pigmentlerinin Üretilmesi
Akdemir, Sema; Özel, Emel (2015)Seramik endüstrisinde inkjet baskılama tekniği, yüksek kalitede dekorlama ve standart renkte mürekkeplerin kullanımına olanak sağlaması açısından gün geçtikçe yaygınlaşan bir dekorlama tekniğidir. Bu teknikte kullanılan ... -
Kaolen Türünün Sağlık Gereçleri Porselen Bünyesinin Piroplastik Deformasyonu Üzerine Etkisi
Hopa, Derya Yeşim; Özel, Emel (2016)Seramik sağlık gereçleri yüksek sıcaklık pişirimiyle üretilen camsı porselenler olduklarından, piroplastik deformasyon bu ürünlerde sıklıkla karşılaşılan bir problemdir ve söz konusu bu problem mikroyapıdaki kristal ve ... -
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 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 cordierite ceramic by aqueous tape casting process
Özel, Emel; Kurama, Semra (Elsevier Science Sa, 2008)Tape-casting process was used to produce cordierite ceramics in an aqueous system with polyvinylalcohol (PVA), and polyethyleneglicol (PEG), as binder and plasticizer, respectively. Before starting to tape-casting studies, ... -
The production of Ni and co-gahnite pigments using ZnO powder produced from metal slags
Gürbüz, Nail; Coşkun, Emrah; Özel, Emel (Korean Assoc Crystal Growth, Inc, 2010)In this study, Ni and Co-gahnite pigments were produced from Al2O3 powder and ZnO powder obtained from industrial metal slags. Different pigment compositions were prepared by adding metal oxides (NiO or Co3O4) and mineralisers ... -
Pyroplastic deformation behavior of vitreous porcelain bodies in presence of spodumene
Hopa, Derya Yeşim; Özel, Emel (Australian Ceramic Society, 2017)Pyroplastic deformation tendency of vitreous body compositions is a major production problem. In this work, a vitreous sanitaryware body composition (ST) which was developed in a previous work was taken as standard, and ... -
The Role of Cation Concentration on Particle Formation Mechanism during Hydrothermal Synthesis of Nanosized Tin Oxide (SnO2)
Açıksarı, C.; Tuncolu, I. G.; Suvacı, Ender; Özel, Emel; Kaya, P.; Rembeza, S.; Kosheleva, N. (Springer, 2016)Preparation of SnO2 particles via hydrothermal synthesis was investigated as a function of cation concentration and treatment time to develop a fundamental understanding on determination of effective formation and growth ... -
SERT HAMMADDE TANE BOYUTUNUN SAĞLIK GEREÇLERİ PORSELENİNİN FİZİKSEL ÖZELLİKLERİNE ETKİSİ
üretiminde kullanılan hammaddelerden kuvars kumu ve feldispat sert hammaddelerdir. Sert hammaddelerin tane boyut dağılımının seramik bünyelerin sinterlenme davranışını ve fiziksel ve mekanik özelliklerini etkilediği bi ...