Yazar "Doğan, A" için listeleme
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Applications of calcium phosphate based antibacterial ceramics on sanitary and tile wares
Özgür, E; Bayrakci, F; Koparal, Ali Savaş; Doğan, A (Trans Tech Publications LTD, 2004)In this study, metal cation consisting calcium phosphate based antibacterial ceramic powders were synthesized with wet chemical technique. The developed antibacterial powder was added to the glaze composition of the ceramic ... -
Computational analysis on cymbal transducer
Özgür, AE; Doğan, A; Suvacı, Ender; Newnham, RE (Taylor & Francis Inc, 2003)Finite Element Analysis in collaboration with experimental studies was conducted to investigate the effects of dimensional parameters on the performance of the cymbal transducer. ANSYS 5.5 FEM code was used for computational ... -
Design optimization of piezoelectric composite transducer using finite element method
Özgür, AE; Doğan, A; Newnham, RE (Trans Tech Publications LTD, 2002)The effect of size on the performance of the cymbal transducer was investigated by using experimental and computational methods. Cymbal transducers were fabricated with steel endcap materials and piezoelectric ceramic, ... -
Disinfection of water with antibacterial ceramic filled columns
Koparal, Ali Savaş; Doğan, A; Bayrakci, F; Özgür, E; Öğütveren, Ülker Bakır (Trans Tech Publications LTD, 2004)Because of disadvantages of classical disinfection systems, alternative methods to prevent the harmful effects of bacteria are investigated by increasingly demand. Most common system among them is usage of antibacterial ... -
Displacement amplification of electroactive materials using the cymbal flextensional transducer
Meyer, RJ; Doğan, A; Yoon, C; Pilgrim, SM; Newnham, RE (Elsevier Science Sa, 2001)High performance electroactive materials were studied as the driver element for the "cymbal" flextensional transducer. The compositions included were commercially available Navy Type I and PKT552 lead zirconate titanate ... -
Effect of ceramic processing methods on photostrictive ceramics
Poosanaas, P; Doğan, A; Prasadarao, AV; Komarneni, S; Uchino, K (Kluwer Academic Publ, 1999)Lanthanum-modified lead zirconate titanate (PLZT) ceramics (3/52/48) doped with 0.5 at.% WO3 were prepared by three different processing methods, coprecipitation, sol-gel and conventional oxide mixing techniques, to ... -
Frequency-tunable microwave dielectric resonator
Poplavko, YM; Prokopenko, YV; Molchanov, VI; Doğan, A (IEEE-Inst Electrical Electronics Engineers Inc, 2001)A new type of tunable composite dielectric resonator (DR) has been designed. In the structure of this DR, a controllable insert was used to change the resonance frequency (f(0)) in a wide spectral range, while preserving ... -
Functional composites for sensors, actuators and transducers
Tressler, JF; Alkoy, S; Doğan, A; Newnham, RE (Elsevier Sci LTD, 1999)Following the trend in structural applications, composite structures are being used more commonly in transducer applications to improve acoustic, mechanical and electrical performance of piezoelectric devices. Functional ... -
Hydrothermal synthesis of lead titanate and lead zirconate titanate electroceramic particles
Suvacı, Ender; Doğan, A; Anderwson, J; Adair, JH (Taylor & Francis LTD, 2003)Hydrothermal synthesis of two lead-based perovskite powder systems, lead titanate and lead zirconate titanate, was investigated. Phase-pure perovskite lead titanate and lead zirconate titanate with various morphologies ... -
Influence of sample thickness on the performance of photostrictive ceramics
Poosanaas, P; Doğan, A; Thakoor, S; Uchino, K (Amer Inst Physics, 1998)Ferroelectric materials with high photovoltaic properties are of interest for new optical devices such as photostrictive ceramic actuators. However, fabrication of these devices requires development of materials exhibiting ... -
Inhibitory and Stimulatory Effects of Cumin, Oregano and Their Essential Oils on Growth and Acid Production of Lactobacillus-Plantarum and Leuconostoc-Mesenteroides
Kıvanç, Merih; Akgül, A; Doğan, A (Elsevier Science BV, 1991)Cumin at concentrations of 0.5, 1.0 and 2.0 % (w/w) stimulated growth and acid production of Lactobacillus plantarum and Leuconostoc mesenteroides in a liquid medium. Essential oil from cumin at high concentrations (300 ... -
Piezoelectric hollow spheres for microprobe hydrophones
Alkoy, S; Hladky, AC; Doğan, A; Cochran, JK; Newnham, RE (Taylor & Francis LTD, 1999)Miniature hollow spheres of lead zirconate titanate have been prepared with a coaxial nozzle process using fine grain slurry of PZT-5. Following the binder burnout and sintering, the spheres were poled radially and ... -
Textured ZnO-Based varistors via templated grain growth
Suvacı, Ender; Özer, IO; Doğan, A (Trans Tech Publications LTD, 2004)Textured ZnO-based varistors were produced by using templated grain growth technique (TGG). Rod-like ZnO particles which used as templates in TGG were synthesized by homogeneous precipitation method from the 0.01 M zinc ... -
An ultrasonic motor using a metal-ceramic composite actuator generating torsional displacement
Koç, B; Doğan, A; Xu, Y; Newnham, RE; Uchino, K (Japan J Applied Physics, 1998)An ultrasonic motor composed of three components; a stator, a rotor and a ball bearing is proposed. The stator is made of an active piezoelectric ring, poled in the thickness direction and bonded with two windmill-like ...
