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Bor ve Stronsiyum Eş-Katkılı Hidroksiapatitlerin Sentezi veMikroyapı Analizi
Date
2019-04-19
Author
Yedekçi, Buşra
Yılmaz, Bengi
Demir, Teyfik
Alshemary, Ammar Zeıdan Ghaılan
Evis, Zafer
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https://hdl.handle.net/11511/71921
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Ağartan, Lütfi; Öztürk, Abdullah; Park, Jongee; Department of Metallurgical and Materials Engineering (2014)
Effects of water/Ti precursor molar ratio (R ratio) and calcination regime on the photocatalytic properties of undoped, boron (B) doped, zirconium (Zr) doped, and B and Zr co-doped TiO2 powders synthesized by sol-gel process were researched. Undoped powders were synthesized for R ratio of 1, 3, 5, 10, 30, and 50 while doped and co-doped powders were synthesized for R ratio of 50. Undoped powders were calcined at 300, 400, and 500oC for 1, 2, and 3 h while doped and co-doped powders were calcined at 300 and ...
Robust design of lithium extraction from boron clays by statistical design and analysis of experiments
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In this thesis, it is aimed to design lithium extraction from boron clays using statistical design of experiments and robust design methodologies. There are several factors affecting extraction of lithium from clays. The most important of these factors have been limited to a number of six which have been gypsum to clay ratio, roasting temperature, roasting time, leaching solid to liquid ratio, leaching time and limestone to clay ratio. For every factor, three levels have been chosen and an experiment has be...
Bor ve/veya Zirkonyum katkılı TiO2 nano parçacıklarının Sol-Jel ve Solvotermal Teknikleriyle Üretimi
Öztürk, Abdullah; Timuçin, Muharrem; Ağartan, Lütfi(2013-12-31)
Projenin genel amacı başta B ve Zr olmak üzere iyon katkılı TiO2 fotokatalizörlerini üretmektir. Sol-Jel/kalsinasyon ve solvotermal metotları kullanılarak farklı çeşit ve miktarda iyonik katkıların TiO2 malzemesinin başta fotokatalitik aktivite olmak üzere yapısal ve fonksiyonel özelliklerine etkileri incelenecektir. Sol-Jel tekniği ile nano boyutta TiO2 üretimi için 30 ml etanol’ün içerisine TEOT (Tetraethilortotitanat) ve gerekli Ti/B ve Ti/Zr katılarak oluşturulan suspansiyona su, alkol ve asetik asitle...
Bor Nitür Nanotüplerin Üretimi Ve Polimer Kompozitlerde Kullanmı
Sezgi, Naime Aslı(2011-12-31)
Bor ve demir oksit toz karışımı ile amonyak gazının yüksek sıcaklıkta tepkimeye sokulmasıyla bor nitrür nanotüpler elde etmek, elde edilen nanotüplerin karakterizasyonunu yapmak, ektrüzyon yöntemiyle farklı ağırlık yüzdelerinde bor nitrür nanotüp içeren polipropilen kompozitler üretmek ve bu kompozitlerin mekanik ve ısısal özelliklerini ölçerek saf polipropilen ile karşılaştırmaktır. Bu sayede bor nitrür nanotüplerin saf polipropilen üzerindeki geliştirici etkisi ölçülecektir.
Preparation of boron-zirconium co-doped photocatalytic titanium dioxide powder
Tokmakçı, Tolga; Öztürk, Abdullah; Jongee, Park; Department of Metallurgical and Materials Engineering (2013)
A titanium dioxide powder co-doped with boron and zirconium was prepared by mechanical ball milling. Photocatalytic performance of the powder was evaluated by degradation of methylene blue (MB) solution under UV illumination. XRD patterns were refined by Rietveld analysis method to obtain accurate lattice parameters and position of the atoms in the crystal structure of TiO2. XRD analysis indicated that the B and/or Zr doped TiO2 powders composed of anatase and did not exhibit any additional phase. Rietveld ...
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B. Yedekçi, B. Yılmaz, T. Demir, A. Z. G. Alshemary, and Z. Evis, “Bor ve Stronsiyum Eş-Katkılı Hidroksiapatitlerin Sentezi veMikroyapı Analizi,” 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71921.