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Browsing Malzeme Bilimi ve Mühendisliği Bölümü Yayın Koleksiyonu by Issue Date

Browsing Malzeme Bilimi ve Mühendisliği Bölümü Yayın Koleksiyonu by Issue Date

Now showing items 21-40 of 50

Characterization of Ti6Al7Nb alloy foams surface treated in aqueous NaOH and CaCl2 solutions

Bütev, Ezgi; Esen, Ziya; Bor, Şakir (Elsevier Science BV, 2016-07)

Ti6Al7Nb alloy foams having 53-73% porosity were manufactured via evaporation of magnesium space holders. A bioactive 1 mu m thick sodium hydrogel titanate layer, NaxH2-xTiyO2y+1., formed after 5 M NaOH treatment, was ...
Effect of SiC addition on the thermal diffusivity of SiAlON ceramics

Kuşhan Akın, Şeniz Reyhan; Turan, Servet; Gençoğlu, Pervin; Mandal, Hasan (2017)

Despite the fact that thermal conductivity is a crucial parameter for SiAlON ceramics with respect to their suitability in various applications, including high-temperature structural components, wear parts, and cutting ...
Surface characteristics and in-vitro behavior of chemically treated bulk Ti6Al7Nb alloys

Esen, Ziya; Öcal, Ezgi Bütev (Elsevier Science SA, 2017-01-15)

The effect of various treatments on surface chemical composition and structure, and bioactivity of Ti6Al7Nb bulk alloys has been investigated. The alloys were treated employing aqueous solutions of NaOH and CaCl2 separately, ...
Investigation of the Erosive Wear Resistance of Boronized Ash-Blowing Nozzles

Çalık, A.; Özbakır, O.; Karakaş, S.; Uçar, N. (Polish Acad Sciences Inst Physics, 2017-02)

In this study, pack boronizing was applied to ash-blowing nozzles manufactured from AISI 1040 steels using Ekabor II powders as the boronizing source at a temperature of 1273 K for a duration of 8 h. Erosive wear tests of ...
Effect of borotitanizing on microstructure and wear behavior of Inconel 625

Kanca, Erdoğan; Günen, Ali; Çakır, Hüseyin; Karakaş, Mustafa Serdar; Gök, Mustafa Sabri; Küçük, Yılmaz; Demir, Mehmet (Elsevier Science BV, 2017-02-15)

nconel 625, a nickel-based superalloy, is used in a wide range of applications including the marine and petroleum industries under where it is subjected to harsh conditions such as high temperatures and highly corrosive ...
Clinoptilolite/PCL-PEG-PCL composite scaffolds for bone tissue engineering applications

Pazarçeviren, Engin; Erdemli, Özge; Keskin, Dilek; Tezcaner, Ayşen (Sage Publications LTD, 2017-03)

The aim of this study was to prepare and characterize highly porous clinoptilolite/poly(epsilon-caprolactone)-poly(ethylene glycol)-poly(epsilon-caprolactone) composite scaffolds. Scaffolds with different clinoptilolite ...
Effect of electrical discharge machining on dental Y-TZP ceramic-resin bonding

Rona, Nergiz; Yenisey, Murat; Küçüktürk, Gökhan; Gürün, Hakan; Çoğun, Can; Esen, Ziya (Elsevier Ireland LTD, 2017-04)

Purpose: The study determined (i) the effects of electrical discharge machining (EDM) on the shear-bond strength (SBS) of the bond between luting resin and zirconia ceramic and (ii) zirconia ceramic's flexural strength ...
Effect of sn alloying on the diffusion bonding behavior of al-mg-si alloys

Atabay, Sıla Ece; Esen, Ziya; Dericioğlu, Arcan F. (Springer, 2017-07)

Effect of Sn as an alloying element on the diffusion-bonding behavior of Al-Mg-Si alloy has been studied by means of differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM) and ...
Optimization of the mechanical properties of Ti-6Al-4V alloy fabricated by selective laser melting using thermohydrogen processes

Bilgin, Güney Mert; Esen, Ziya; Kuşhan Akın, Seniz Reyhan; Dericioğlu, Arcan F. (Elsevier Science SA, 2017-07-17)

2-step Thermo Hydrogen Process (THP) including hydrogenation and dehydrogenation steps was applied to Ti-6Al-4V alloy fabricated by selective laser melting (SLM) process to refine the microstructure and to increase the ...
Diffusion Kinetics of Binary Ti-Ni Shape Memory Alloys

Uçar, Nazım; Doğan, Şule; Özdemir, Ahmet Faruk; Karakaş, Mustafa Serdar; Çalık, A. (Polish Acad Sciences Inst Physics, 2017-09)

In this work, the boriding of binary Ti-Ni shape memory alloys was carried out in a solid medium at 1173 and 1273 K for 2, 4, and 8 h using the powder pack method with Ekabor-Ni powders. The boride layer was characterized ...
Boriding kinetics and mechanical properties of borided commercial-purity nickel

Çalık, A.; Uçar, Nebahattin; Delikanlı, K.; Çarkçı, M.; Karakaş, S. (Natl Inst Science Communication-Niscair, 2017-10)

Kinetics of boride layer growth and tensile behaviour in bonded commercial-purity nickel was investigated. Bonding was carried out in a solid medium consisting of Ekabor-II powders at 1173, 1223 and 1273 K for periods of ...
Effect of SiC addition on the thermal diffusivity of SiAlON ceramics

Kuşhan Akın, Seniz Reyhan; Turan, Servet; Gençoğlu, Pervin; Mandal, Hasan (Elsevier SCI LTD, 2017-11)

Despite the fact that thermal conductivity is a crucial parameter for SiAlON ceramics with respect to their suitability in various applications, including high-temperature structural components, wear parts, and cutting ...
A novel approach for synthesis of monticellite based bioactive ceramic powders from boron derivative waste

Köroğlu, Levent; Bütev, Ezgi; Esen, Ziya; Ayaş, Erhan (Elsevier Science BV, 2017-12-15)

Monticellite bioactive ceramics have a high usage potential as bone graft substitutes due to their superior mechanical properties compared to hydroxyapatite and excellent bioactivity. Turkey has almost 72% of the global ...
Nanocrystallization In Cu-Zr-Al-Sm Bulk Metallic Glasses

Sıkan, Fatih; Yaşar, Bengisu; Kalay, İlkay (Springer, 2018-04)

The effect of rare-earth element (Sm) microalloying on the thermal stability and crystallization kinetics of melt-spun ribbons and suction-cast rods of Zr48Cu38.4Al9.6Sm4 alloy were investigated using differential scanning ...
Designing thermochemical processes for ti-alloys produced by additive manufacturing techniques

Esen, Ziya; Doğu, Merve Nur; Bilgin, Güney Mert; Tan, Evren; Berkay Gümüş, Berkay; Dericioğlu, Arcan F. (2019)

Ti-6Al-4V alloys are extensively used in biomedical, aerospace and petro-chemical applications mainly due to their high specific strength, excellent corrosion resistance and high fatigue strength. In contrast to conventional ...
Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses

Sıkan, F.; Atabay, Sıla Ece; Motallebzadeh, A.; Özerinç, S.; Kalay, I.; Kalay, Y. E. (Elsevier Science SA, 2019-01-16)

The effect of rare-earth (Sm) microalloying on the thermal stability and phase selection along with the effect of nanocrystallization on the mechanical properties of amorphous melt-spun ribbons of Zr50Cu40Al10, Zr49Cu39.2Al9.8Sm2 ...
Fabrication, Morphology Analysis, and Mechanical Properties of Ti Foams Manufactured Using the Space Holder Method for Bone Substitute Materials

Çetinel, Oktay; Esen, Ziya; Yıldırım, Bora (MDPI, 2019-03-17)

Porous titanium (Ti) offers several key attributes as a biomedical material. Among the known characteristics of Ti relevant to biomedical applications, the mechanical performance and effects of a pore structure on the ...
Investigation of phase selection hierarchy in Mn-Al alloys

Genç, Ayşe Merve; Acar, Özgün; Turan, Servet; Kalay, İlkay; Savacı, Umut; Kalay, Yunus Eren (2019-12)

Primarily attributed to the formation of the ferromagnetic tau-phase, near equiatomic composition of Mn-Al have recently received much attention in permanent magnet industry. Several mechanisms have been proposed in ...
Microstructure and Mechanical Properties of CoCrFeNi(TiAl) High Entropy Alloys

Kalay, İlkay (2020)

The structure and mechanical properties of CoCrFeNi and CoCrFeNiTi0.5Al0.5 (in molar ratio) high entropy alloys were investigated using X-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM), ...
Effects of Process Parameters on Fe2O3/α-Al2O3 Luster Pigments Produced By Precipitation Method

Günhan, Büşra; Kaya, Güray; Kök, Mesut; Weinekotter, Çiğdem; Poyraz, H. Bogaç; Ceylantekin, Rasim; Kuşhan Akın, Şeniz Reyhan (2020)

Common known examples of substrate-based pigments are mica/TiO2 and mica/Fe2O3 luster pigments produced using wet chemical methods and gas-phase reaction techniques. Luster coatings, in particular those prepared using ...

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