A5050294332- Advanced ceramic materials synthesis
- Ferroelectric and Piezoelectric Materials
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Nuclear materials and radiation effects
- High-pressure geophysics and materials
- Advancements in Solid Oxide Fuel Cells
- Boron and Carbon Nanomaterials Research
- Fusion materials and technologies
- Magnesium Alloys: Properties and Applications
- MXene and MAX Phase Materials
- Microwave Dielectric Ceramics Synthesis
- Radiation Shielding Materials Analysis
- X-ray Diffraction in Crystallography
- Nuclear Materials and Properties
- Thermal Expansion and Ionic Conductivity
- Advanced Battery Technologies Research
- Advanced Condensed Matter Physics
- Antimicrobial agents and applications
- Electrospun Nanofibers in Biomedical Applications
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Inorganic Chemistry and Materials
- Material Dynamics and Properties
- Electron and X-Ray Spectroscopy Techniques
Konya Technical University
2020-2023
Rutgers, The State University of New Jersey
2011-2020
Selçuk University
2016-2020
Nonisothermal densification in 8% yttria doped zirconia (8YSZ) particulate matter of 250 nm median particle size was studied under 215 V/cm dc electric field and 9 °C/min heating rate, using time-resolved in-situ high temperature energy dispersive x-ray diffractometry with a polychromatic 200 keV synchrotron probe. Densification occurred the 876–905 °C range, which resulted 97% theoretical density. No local melting at particle-particle contacts observed scanning electron micrographs,...
In this study, the nature of ball-milling mechanism in a ternary materials system (Mg-6Sn-1Na) is investigated for proper mechanical alloying. An identical powder mixture material exposed to different milling durations suitable mixture. First, platelet structure formation observed on particles with increasing duration, mainly formed <200> direction hexagonal crystal Mg matrix. Then, flake texture broken into smaller spherical further ball up 12 h. According EDS analysis, secondary...
Abstract K 0.5 Na NbO 3 (KNN) of 4‐μm average particle size was flash sintered in parallel plate capacitor configuration (PPCC) under 100 V/mm (0.8 mA/mm 2 cut‐off) with 10°C/min heating rate air. Precipitous densification occurred from T f = 662–670°C ( –furnace temperature) 60 s 55 mW/mm peak power absorption at 667°C, resulting 98% dense ceramic < 5‐μm grains size. No grain growth observed. A cubic morphology inherited the starting KNN powder. sign liquid phase formation on boundaries...
Zirconium diboride (ZrB 2 ) is an attractive material due to its thermal and electrical properties. In recent years, ZrB has been investigated as a superior replacement for sapphire when used substrate gallium nitride devices. Like sapphire, anisotropic hexagonal structure which defines directionally dependent However, the behavior of not well understood. this paper, we use energy-dispersive synchrotron X-ray diffraction measure expansion polycrystalline powder from 300 1150 K. Nine Bragg...
We study the temperature and pressure dependence of phase evolution in 0.5MgO-0.5Y2O3 nanocomposite system using a diamond anvil apparatus conjunction with situ synchrotron energy dispersive x-ray diffraction at 7 GPa hydrostatic pressure. At (298 K, 7.0 GPa), structural transformations Y2O3 are observed, giving rise to co-existence its cubic, hexagonal, monoclinic polymorphs together cubic MgO. An increase 1273 K causes crystallinity hexagonal phases increase. Isothermal isobaric hold (1273...
Temperature and pressure dependence of phase evolution in 0.5 MgO-0.5 Y2O3 is studied using the diamond anvil method. At 300 K 5.5 GPa, transformations are observed, resulting co-existence cubic, hexagonal, monoclinic phases. Heating to 1293 results increased crystallinity increase hexagonal content. Isothermal isobaric hold at 1273 GPa for 120 min yttrium dissolution cubic MgO, causing 0.83% volumetric strain. Cooling 0 yields a four among MgO Y2O3. The residual unit cell volume expansion...
Hypereutectic 0.8MgO-0.2Y2O3 nanocomposites were studied using high pressure and temperature in situ synchrotron energy dispersive x-ray diffractometry at 5.5 GPa 1273 K. Polymorphic transformations the Y2O3 phase, which resulted a quadruple phase equilibria among cubic, hexagonal, monoclinic phases with cubic MgO, observed 298 K under GPa—a much smaller than pressures polymorphic transitions macroscopic Y2O3. Time-resolved (1273 K, GPa, 120 min) revealed 0.87% expansive volumetric lattice...
Pressure and temperature dependences of the unit cell volumes Y2O3’s three polymorphs (cubic, monoclinic, hexagonal) have been measured by synchrotron energy dispersive x-ray diffraction in conjunction with a cubic anvil technique to pressures temperatures up 7.5 GPa 1073 K, respectively. The pressure–volume–temperature (P–V–T) data were used obtain thermoelastic parameters fitting modified high third-order Birch–Murnaghan equation state thermal pressure approach. properties that determined...
In recent years, amorphous metals in the form of nanostructured protective coatings on steel substrates have received substantial consideration for applications extreme environments comprised neutron fluxes, temperature and aggressively corrosive environments. Such are postulated to exhibit superior resistance radiation damage because microstructure offers a plethora sites which radiation-induced defects can migrate where they ultimately stopped.
Abstract In this study, the effects of different sintering methodology on grain formation, density, and hardness blended leach residue (B‐LR) pellets is investigated. For first time, flash (FS) method, an environmentally friendly process, used to make multiphase ceramic composites using B‐LR under 100 V/mm at 675C. The outcomes study revealed that FS process faster more energy‐efficient than conventional (CS) methods performed 800°C for 4 h. formation abnormal growth prevented by in material...
Densification of PMN-PT piezoelectric ceramic powder is carried out by electric field assisted/flash sintering method. The composition selected in materials system 0.67[Pb(Mg1/3Nb2/3)O3]−0.33(PbTiO3). During flash experiment, 200 V/mm applied on sample with 0.1 amp current cutoff value. Flash accomplished less than 90 sec at ~700 °C. Relative density for sintered measured approximately 94 % which reasonable value comparing literature. SEM microstructure illustration exhibits proper...
In this study, compressive and tensile strain in Al7075 plate have been measured by synchrotron energy-dispersive X-ray diffraction (EDXRD) conjunction with 4-point bending test under various load up to 1000 lbs(453.6 kg). The are determined stress related interplanar spacing variation at 111 peak reflection which is considered atomic level measurement. specimen initially shows elastic behavior 400 lbs (181.4 kg) load. However, further increment applied on sample causes plastic deformation...