Browsing by Author "Bahçeci, Ersin"
Now showing items 1-17 of 17
-
Aromatic thermosetting copolyester foam core and aluminum foam face three-layer sandwich composite for impact energy absorption
Bakır, Mete; Bahçeci, Ersin; Meyer, Jacob L.; Economy, James; Jasiuk, Iwona (Elsevier, 2017)In this work, we introduce a three-layer sandwich composite structure having an aromatic thermosetting copolyester (ATSP) foam core with two aluminum foam face layers joined together by an in situ generated foaming mechanism. ... -
Boron nitride nanosheet-reinforced WNiCoFeCr high-entropy alloys: the role of B4C on the structural, physical, mechanical, and radiological shielding properties
Kavaz, Esra; Gül, Ali Oktay; Başgöz, Öyküm; Güler, Ömer; LMisned, Ghada; Bahçeci, Ersin; Güler, Seval Hale; Tekin, Hüseyin Ozan (Springer, 2022)The synthesis and extensive characterization of newly developed boron nitride nanosheet (BNNSs)-reinforced WNiCoFeCr high-entropy alloys (HEAs) are presented. The influence of B4C on the structural, physical, mechanical, ... -
Boron nitride nanosheet-reinforced WNiCoFeCr high-entropy alloys: the role of B4C on the structural, physical, mechanical, and radiological shielding properties
Kavaz, Esra; Gül, Ali Oktay; Başgöz, Öyküm; Güler, Ömer; ALMisned, Ghada; Bahçeci, Ersin; Güler, Seval Hale; Tekin, Hüseyin Ozan (Springer, 2022)The synthesis and extensive characterization of newly developed boron nitride nanosheet (BNNSs)-reinforced WNiCoFeCr high-entropy alloys (HEAs) are presented. The influence of B4C on the structural, physical, mechanical, ... -
Characterization of atomic layer deposition coated cutting tools by X-ray photoelectron spectroscopy and examination of cutting performance
Bahçeci, Ersin (Taylor & Francis Inc, 2019)The performance of cutting tools was examined, involving synthesis of a 10 nm thin film of Aluminum oxide using atomic layer deposition. Characterization of coated and uncoated cutting tools was done by several methods. ... -
Dynamic transition of nanosilicon from indirect to direct-like nature by strain-induced structural relaxation
Mantey, Kevin; Morgan, Huw; Boparai, Jack; Yamani, Zain; Bahçeci, Ersin; Nayfeh, Munir Hasan (AIP Advances, 2021)Silicon nanoclusters exhibit light emission with direct-like ns-mu s time dynamics; however, they show variable synthesis and structure, optical, and electronic characteristics. The widely adopted model is a core-shell in ... -
Experimental and theoretical study of ultraviolet-induced structural/optical instability in nano silicon-based luminescence
Malloy, James; Mantey, Kevin; Maximenko, Yulia; Bahçeci, Ersin; Morgan, Huw; Yamani, Zain; Boparai, Jack; Puthalath, Krithik; Nayfeh, Munir Hasan (American Institute of Physics Inc., 2018)Nano silicon is emerging as an active element for UV applications due to quantum confinement-induced widening of the Si bandgap, amenability to integration on Si, and less sensitivity to temperature. NanoSi-based UV ... -
Experimental Verification of Cell Shape-Collapse Relationships in Metallic Foams by Photoelasticity Method
Bahçeci, Ersin; Özçatalbaş, Yusuf (Gazi University, 2019)In the present study, the effect of cell morphology on mechanical properties in metallic foams with Al based closed cells was examined. AlSi8Mg0.8 alloyed metallic foam materials were produced by the Powder Metallurgy (PM) ... -
Gözenekli ve süzen (filtre) kağıtların birleştirme yöntemlerine göre yapışma performansları
Özdemirden, Hasan (İskenderun Teknik Üniversitesi / Mühendislik ve Fen Bilimleri Enstitüsü / Metalurji ve Malzeme Mühendisliği Anabilim Dalı, 2019)Bu çalışmada yağ, yakıt ve hava filtresi olarak kullanılan süzen kağıtlarının farklı yöntemlerle birleştirilmeler uygulanarak, kaliteli birleştirmelerin belirlenmesi amaçlanmıştır. Birleştirme ile sektördeki kullanım ... -
Iron oxide-Si nanoparticle magnetic core-shell induced by the interaction of d-orbitals of Fe2+ with reconstructed Si dimer-like defects
Elhalawany, Noha; Mantey, Kevin; Hoang, Tuan; Bahçeci, Ersin; Xu, Jiacheng; Ateş, Hakan; Gorin, Dmitry; Yamani, Zain; Nayfeh, Munir H. (American Institute of Physics Inc., 2020)Redox-type charge exchange between Si nanoparticles and aqueous metal ions m(x+) was recently used to synthesize core-shell nanocomposites in which their functionalities have been integrated. The process requires the ... -
Microhydrogen production with water splitting from daily used waste aluminum
Aylıkçı, Nuray Küp; Mert, Suha Orçun; Aylıkçı, Volkan; Bahçeci, Ersin; Depci, Tolga; Oruç, Önder (Elsevier, 2021)In this study, different types of waste aluminum produced in daily life and their pure equivalents were evaluated and compared in terms of their hydrogen generation performance through the water-splitting reaction. An ... -
Polarization-based surface enhanced Raman scattering from single colloidal DNA decorated with 3 nm silicon nanoparticles
Mantey, Kevin; Quagliano, Lucia; Rezk, Ayman; Palleschi, Simonetta; Abuhassan, Laila; Nayfeh, Ammar; Bahçeci, Ersin; Nayfeh, Munir H. (American Institute of Physics Inc., 2021)Surface enhanced Raman scattering (SERS), in which sample molecules are placed in the proximity of conducting nanostructures, subjects the molecules to intense electron oscillation (plasmon) field. The intense field, ... -
Production of new electromagnetic wave shielder mortar using waste mill scales
Öztürk, Murat; Depci, Tolga; Bahçeci, Ersin; Karaaslan, Muharrem; Akgöl, Oğuzhan; Sevim, Umur Korkut (Elsevier, 2020)Electromagnetic (EM) wave shielder mortar can be produced by mixing cement, natural limestone, tap water with mill scale (mill scale-I and mill scale-II) which is one of the biggest disposal area problems of the iron-steel ... -
Proximal probe-like nano structuring in metal-assisted etching of silicon
Bahçeci, Ersin; Enders, Brian; Yamani, Zain Hassan; Tokmoldin, Serekbol; Taukenov, Aman; Abuhassan, Laila; Nayfeh, Munir (American Institute of Physics Inc., 2019)We use silicon having multiple crystalline orientation domains and high metal doping in metal assisted chemical etching (MACEtch) in HF/H2O2. In device-quality silicon, MACEtch produces high-aspect ratio anisotropic (1-D) ... -
Thermoluminescence properties of strontium doped magnesium tetraborate
Nur, Necmettin; Evis, Dündar; Bahçeci, Ersin; Depci, Tolga; Yıldırım, Rabia Güler; Kafadar, Vural Emir (Elsevier, 2019)It is worth to continuous and systematic investigations related with magnesium tetraborate (MBO) due to its attractive candidate for dosimetric application. The study was done to develop new phosphor with adding strontium ... -
Time-thermo-dynamics of anti-Stokes and Stokes scattering and luminescence in 1-nm silicon nanoparticles: Toward an optical nanorefrigerator
Nayfeh, Munir H.; Morgan, Huw; Nayfeh, Ammar; Bahçeci, Ersin; Abuhassan, Laila (American Institute of Physics Inc., 2022)The thermodynamics of nanosystems is interesting, as they constitute the transition between the atomistic and solid states. This is empowered by the development of tools to manipulate individual atoms and perform atomistic ... -
Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics
Enders, Brian; Koçyiğit, Adem; Bahçeci, Ersin; Elhalawany, Noha; Nayfeh, Ammar; Alshammari, Owrad; Alsalhi, Mohamad; Nayfeh, Munir (Amer Inst Physics, 2019)We report on a wet none thermal integration of the binary silicon-gold nano system. Instead of thermally based gas-solid procedures, we use charge exchange/injection-based procedures in a chemical wet environment. SEM and ... -
Wideband luminescence from bandgap-matched Mg-based Si core-shell geometry nanocomposite
Kocyiğit, Adem; Elhalawany, Noha; Bahçeci, Ersin; Enders, Brian; Puthalath, Krithik; Abuhassan, Laila; Yamani, Zain; Nayfeh, Munir (American Institute of Physics Inc., 2018)We use wet treatment to integrate red-luminescent Si nanoparticles with Mg-based wide-bandgap insulators Mg(OH) and MgO (5.7 and 7.3 eV respectively). In the process, Mg2+ is reduced on Si nanoparticle clusters, while ...
