Determination of the influence of TiO2 on the elastic properties of a mica based glass ceramic by ultrasonic velocity measurements

Date

2005-11-15

Author

Gür, Cemil Hakan
Öztürk, Abdullah

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

237
views

0
downloads

The influence of small amount (1 or 2 wt%) of TiO2 additions and crystallization heat treatment on the elastic properties of a mica based glass ceramic have been investigated by ultrasonic velocity measurements. The mica based glass ceramic was prepared through controlled crystallization of a glass in the SiO2, Al2O3, CaO, MgO, K2O and F system. Evidences of TiO2 acting as a nucleating agent in this system was demonstrated. The longitudinal and transversal wave velocities of the as-prepared glass and the mica based glass ceramic were measured by using 5 MHz probes at room temperature. Elastic properties namely; longitudinal modulus, Young's modulus, bulk modulus, and shear modulus were calculated from the ultrasonic velocity values measured and density values obtained experimentally. It has been observed that small amount of TiO2 additions caused a notable but not significant; however, the crystallization heat treatment had a profound effect on the elastic properties of the glass in the system studied.

Subject Keywords

Materials Chemistry, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Ceramics and Composites

URI

https://hdl.handle.net/11511/39959

Journal

JOURNAL OF NON-CRYSTALLINE SOLIDS

DOI

https://doi.org/10.1016/j.jnoncrysol.2005.09.022

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Investigation of optical parameters of Ag-In-Se thin films deposited by e-beam technique ÇOLAKOĞLU, TAHİR; Parlak, Mehmet; ÖZDER, SERHAT (Elsevier BV, 2008-07-15) The optical properties of the Ag-In-Se (AlS) thin films deposited by e-beam technique were investigated by means of the optical transmittance measurements. The optical absorption coefficients of the films were found to vary from 10(3) to 10(5) cm(-1) over the wavelength range of 300-1100 nm. The real and imaginary parts of the refractive index and dielectric constant for the as-grown and annealed films in between 100 and 400 degrees C were evaluated by means of both envelope method (EM) and continuous wavel...
Characteristics of HfO2 and SiO2 on p-type silicon wafers using terahertz spectroscopy Altan, Hakan; Pham, D.; Grebel, H.; Federici, J. F. (IOP Publishing, 2007-05-01) The effect of high-kappa dielectric HfO2 films on 200 mm diameter p-type silicon substrates was investigated and compared with conventional dielectric material, SiO2. We employed all-optical characterization methods using terahertz (THz) time-domain spectroscopy and visible cw pump/THz probe spectroscopy. Measurements were performed on two sets of samples, each set containing both HfO2 and SiO2 coated wafers with varying thickness of oxide layer. One set had a protective coating of either photoresist or Si3...
Determination of current transport characteristics in Au-Cu/CuO/n-Si Schottky diodes Surucu, O. Bayrakli; Güllü, Hasan Hüseyin; Terlemezoglu, M.; Yildiz, D. E.; Parlak, M. (Elsevier BV, 2019-10-01) In this study, the material properties of CuO thin films fabricated by sputtering technique and electrical properties of CuO/n-Si structure were reported. Temperature-dependent current-voltage (I-V) measurement was carried out to determine the detail electrical characteristics of this structure. The anomaly in thermionic emission (TE) model related to barrier height inhomogeneity at the interface was obtained from the forward bias I-V analysis. The current transport mechanism at the junction was determined ...
Theoretical prediction of bulk glass forming ability (BGFA) of Ti-Cu based multicomponent alloys SUER, Sila; Mehrabov, Amdulla; Akdeniz, Mahmut Vedat (Elsevier BV, 2009-03-01) The bulk glass forming ability (BGFA) of Ti-Cu based multicomponent alloys has been evaluated via theoretical modeling and computer simulation studies based on a combination of electronic theory of alloys in the pseudopotential approximation and the statistical thermodynamical theory of liquid alloys The. magnitude of atomic ordering energies, calculated by means of the electronic theory of alloys in the pseudopotential approximation, was subsequently used for calculation of the key thermodynamic parameters...
Calculation of the C-P-C-V as a function of temperature close to the melting point in benzene Tari, O.; Yurtseven, Hasan Hamit (Informa UK Limited, 2018-01-01) The temperature dependence of the C-P - C-V is calculated at constant pressures using the observed volume data from the literature for solid and liquid benzene near the melting point. Our calculated values are compared with some earlier treatments and we find that they disagree at constant pressures for the solid benzene, whereas for the liquid benzene agreement is reasonable in terms of the order of magnitude between our calculated C-P - C-V and those predicted from the Peng-Robinson equation of state. Our...

Citation Formats

C. H. Gür and A. Öztürk, “Determination of the influence of TiO2 on the elastic properties of a mica based glass ceramic by ultrasonic velocity measurements,” JOURNAL OF NON-CRYSTALLINE SOLIDS, pp. 3655–3662, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39959.