Yazar "Bağcı, Cengiz" için listeleme
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Abrasive wear, structure, and mechanical aspects of Al–Al2O3 composites fabricated using various mixing media during P/M routes
Kurt, Halil İbrahim; Arık, Halil; Bağcı, Cengiz (Springer New York LLC, 2016)The effects of mixing method during powder metallurgy (PM) routes on the abrasive wear behavior of Al–Al2O3p composite materials is investigated. For this purpose, starting Al powders with a constant volume fraction of 10% ... -
Alümina silikat kaynakları kullanarak geopolimerizasyon yöntemi ile yapısal seramik üretiminin araştırılması
Kafkas, Doğan (Hitit Üniversitesi Lisansüstü Eğitim Enstitüsü, 2022)Son zamanlarda, geopolimer sentezinde metekaolin ve füme silika yerine farklı tipte alüminosilikatlar kullanılmaktadır. Bu çalışmanın amacı geopolimerik yöntem ile yapısal malzeme sentezinde metakaolin yerine bir alüminasilikat ... -
Effects of nitridation time and precursor particle size on yield of β-SiAlON synthesized from calcined kaolinite
Arık, Halil; Bağcı, Cengiz (Springer New York LLC, 2019)Carbothermal reduction and simultaneous nitriding (CTRN) of natural aluminosilicates is a method used to obtain phases of Si–Al–O–N system. SiAlON phases have important applications, such as high technology ceramics, for ... -
Formation of alpha/beta-Si(3)N(4 )nanoparticles by carbothermal reduction and nitridation of geopolymers
Bağcı, Cengiz; Yang, Qun; Kriven, Waltraud M. (Wiley, 2019)Silicon nitride (Si3N4) particles with various alpha/beta-Si(3)N(4 )ratios were fabricated from geopolymer (GP)-carbon compositions (M2O center dot Al2O3 center dot 4.5SiO(2)center dot 12H(2)O+18C), where M is an alkali ... -
Fully reacted high strength geopolymer made with diatomite as a fumed silica alternative
Bağcı, Cengiz; Kutyla, Gregory P.; Kriven, Waltraud M. (Elsevier Ltd, 2017)Geopolymers are formed by mixing of aluminosilicate sources with alkaline meta-silicate solution at room temperature. In the current study, diatomite of Turkish origin was fully utilized as a fumed silica alternative for ... -
Geopolimerlerden mekanokimyasal aktivasyon ile silisyum karbür tip nano parçacıkların üretilebilirliğinin araştırılması
Bağcı, Cengiz (Gazi Üniversitesi, 2017)Mekanokimyasal olarak 6, 12, 24, 48 saat süreyle aktive edilen ve M= (Na+ veya K+) olmak üzere, sodyum veya potasyum alkali metal içeren (M2OoAl2O3o4.5SiO2o12H2O+18C) geopolimer karbon kompozisyonlarının karbotermal ... -
In situ carbothermal reduction/nitridation carbon-nano powder added geopolymer composites
Bağcı, Cengiz; Kutyla, Gregory P.; Kriven, Waltraud M. (American Ceramic Society, 2014)Geopolymer was prepared by mixing metakaolin (Al2O3 center dot SiO2) with sodium water glass solution and then the activated carbon nano powder was added the geopolymer. To determine the best composition for carbothermal ... -
Mechanochemical activation of sodium geopolymers containing carbon-nano powder
Bağcı, Cengiz; Düzgün, Zehra (Gazi Üniversitesi, 2017)Mekanokimyasal aktivasyon için 9 veya 18 mol karbon nano-tozlar içeren iki farklı sodyum geopolymer iyi bilinen geopolymer yöntemi ile hazırlanmıştır. 9 mol karbon, geopolimer üretimi aşamasında geopolimer reçineye dahil ... -
Synthesis and characterization of silicon carbide powders converted from metakaolin-based geopolymer
Bağcı, Cengiz; Kutyla, Gregory P.; Seymour, Kevin C.; Kriven, Waltraud M. (Blackwell Publishing Inc., 2016)Silicon carbide (SiC) ceramic powders were synthesized by carbothermal reduction in specific geopolymers containing carbon nanopowders. Geopolymers containing carbon and having a composition M2O·Al2O3·4.5SiO2·12H2O+18C, ... -
Synthesis, characterization and electrochemical performance of Nb doped LiFePO4/C cathodes by mechanochemical activation
Bağcı, Cengiz; Akyıldız, Öncü (Hitit University, 2018)We synthesized Nb-doped LiFePO4/C nano composite cathode materials by mechanochemical activation followed by a single step calcination. The starting chemicals of Li2CO3, FeC2O4.2H2O, NH4H2.PO4 and C6H8O7 as lithium, iron, ...
