Güncel Gönderiler: Malzeme Bilimi ve Mühendisliği Bölümü
Toplam kayıt 444, listelenen: 121-140
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Utilisation of concentrator wastes of etibor Kirka Borax Company in the recipe of an opaque frit used for wall tile glazes as an acid boric replacement
(Trans Tech Publications LTD, 2004)Turkey holds similar to63% of total boron deposition shares of the world with 803 million tons. Eti Holding, being the most important producer, possesses 31% of total world production on the B2O3 basis. Like every other ... -
Glass-ceramic glazes in the CaO-SiO2 system
(Trans Tech Publications LTD, 2004)Glass ceramic glazes were developed in the system of CaO-SiO2 system. Compositions containing B2O3 and K2O as fluxing agent were melted at 1450degreesC and fritted. Glazes for porcelain tiles were formulated by using these ... -
Production of blue willemite based pigments by using ZnO powder produced from metal slags
(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. ... -
Reaction model for the boron carbide/aluminium system
(Trans Tech Publications LTD, 2004)An attempt has been made to shed light on the reaction mechanism during the production of B4C/Al composites by making use of the measured phase contents of the phases B4C, Al, Al3BC and AlB2. It was found that the agreement ... -
Synthesis of the CeO2 based pigments by using enriched rare-earth oxides located at Eskisehir Kizilcaoren region
(Trans Tech Publications LTD, 2004)Pigments based on CeO2 structure are known to give various pink-orange and red brown colour in ceramic glazes. This type of pigments is prepared by high temperature calcination Of CeO2 and Pr6O11 with admixed rare-earth ... -
Processing of textured zinc oxide varistors via templated grain growth
(Elsevier Sci LTD, 2005)Textured, dense zinc oxide varistors were successfully fabricated by Templated Grain Growth (TGG) technique. Rod-like, anisotropic ZnO particles (templates) were synthesized by homogeneous precipitation method. The templates ... -
The effects of processing on the alpha <-> beta SiAlON transformation during cycling heat treatments
(Elsevier Science Sa, 2008)Typical alpha/beta-SiAlON starting composition of formula Nd(0.33)Si(9.38)Al(2.62)O(1.62)N(14.38) was densified by two different sintering processes, hot pressing (HP) and gas pressure sintering (GPS), using Nd(2)O(3) as ... -
Production of brown and black pigments by using flotation waste from copper slag
(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 coloured zircon pigments from zircon
(Elsevier Sci LTD, 2007)Zircon (ZrSiO4) pigments are commonly used in the ceramic industry for glazes due to their high chemical stability and superior resistance to the dissolution during firing in glazes. These pigments are made by calcining a ... -
Production of brown pigments for porcelain insulator applications
(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 ... -
Optimization of alpha-sialon microstructure by heat treatment
(Trans Tech Publications LTD, 2008)Nd-doped alpha-SiAlON starting composition (Nd(0.33)Si(9.38)Al(2.62)O(1.62)N(14.38)) was prepared by gas pressure sintering at 1825 degrees C for 3 hrs. In order to explore the effect of post heat treatment on the developments ... -
Anisotropic sintering shrinkage in alumina ceramics containing oriented platelets
(Wiley, 2006)The effect of oriented alpha-Al2O3 platelets on densification and shrinkage behavior of tape-cast alpha-Al2O3 during solid-state sintering was studied using dilatometric sintering shrinkage experiments and microstructural ... -
Experimental and finite element study of the thermal conductivity of alpha-SiAlON ceramics
(Blackwell Publishing, 2007)The thermal conductivity of monolithic Y-Sm/alpha-SiAlON was evaluated using experimental data and finite element analysis. The thermal diffusivities of Y, Y-Dy, and Y-Ce/alpha-SiAlON ceramics were also investigated ... -
Fabrication of functionally graded SiAlON ceramics by tape casting
(Blackwell Publishing, 2006)Functionally graded SiAlON ceramics (FG-SiAlONs) were successfully prepared by the tape casting and lamination approach. Non-aqueous SiAlON slurries with five different alpha to beta-SiAlON ratios (85 alpha:15 beta, 70 ... -
Preparation of nanosized tin oxide (SnO2) powder by homogeneous precipitation
(Elsevier Sci LTD, 2007)Synthesis of nanosized SnO2 ceramic particles via homogeneous precipitation was investigated as a function of processing parameters such as initial concentration and calcination temperature. Hydrous tin oxide was precipitated ... -
Synthesis of nanosized tin oxide (SnO2) particles via homogeneous precipitation
(Trans Tech Publications LTD, 2004)Synthesis of nanosized SnO2 ceramic particles via homogeneous precipitation was investigated as a function of processing parameters such as initial concentration and calcination temperature. Hydrous tin oxide was precipitated ... -
Effect of different nucleation temperatures on the microstructural development of alpha-SiAlON ceramics
(Trans Tech Publications LTD, 2004)alpha-SiAlON ceramics with elongated grains were previously observed in different studies. Sintering conditions are known to have a significant role on the microstructural development. By the nucleation treatment application ... -
Effect of the particle size distribution of spinel on the mechanical properties and thermal shock performance of MgO-spinel composites
(Elsevier Sci LTD, 2003)The influence of varying the amounts of spinel with a similar median particle size, but with different distribution, on the mechanical properties and thermal shock performance of MgO-spinel composites was investigated. ...
