Crystallization of zeolite X in a continuous stirred tank reactor.

1979
Orbey, Hasan
Show full item record
32
views
0
downloads
https://hdl.handle.net/11511/4158
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Crystallization of amorphous selenium thin films.
Kalebozan, Halit; Department of Metallurgical Engineering (1986)
Crystallization of amorphous selenium thin films
Özenbas, M.; Kalebozan, H. (Elsevier BV, 1986-12)
The crystallization of amorphous Se (a-Se) films prepared by vacuum deposition at <10-5 Torr onto glass substrates at 20°C was examined. The amorphous-to-crystalline transition was obtained by annealing of the films between 40–90°C. The crystalline structures resulting from annealing at different temperatures have been identified by SEM (Scanning Electron Microscope). X-ray and TEM (Transmission Electron Microscopy) studies showed that these structures were hexagonal. The thicknesses of the films used were ...
Crystallization of hydrogenated amorphous silicon thin film on glass by using ns-pulsed fiber laser operating at 1064 nm
Salman, H. S.; BACIOĞLU, AKIN; Eken, S. K. (Elsevier BV, 2019-06-01)
A nanosecond pulsed, Ytterbium doped optical fiber laser, operating at 1064 nm, has been used for laser induced crystallization (LIC) of a standard recipe-hydrogenated amorphous silicon (a-Si: H) thin film, deposited in a radio-frequency plasma enhanced chemical vapor deposition (RF-PECVD) reactor. Despite relatively lower photon energy of 1.165 eV, the crystallization of the a-Si: H sample with the Tauc gap of 1.70 eV was succeeded. The optical energy density impinging on the sample surface was adjusted by...
Crystallization and phase separation mechanism of silicon oxide thin films fabricated via e-beam evaporation of silicon monoxide
Gunduz, Deniz Cihan; Tankut, Aydin; Sedani, Salar; Karaman, Mehmet; Turan, Raşit (2015-04-29)
In this work, silicon oxide thin films were synthesized via e-beam evaporation of silicon monoxide. Subsequent annealing experiments were carried out to induce Si nanocrystals (Si NCs) formation. A broad range of annealing durations and temperatures were studied. Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and Fourier Transform Infrared Spectroscopy (FTIR) were employed to study the mechanism of phase separation in silicon oxide films and crystallization of Si. Raman spectroscopy results show...
Crystallization field study for the formation of single phase sodium clinoptilolite: Batch composition, seed and temperature effects
Guevenir, O.; Kalıpçılar, Halil; Culfaz, A. (Wiley, 2009-03-01)
Although clinoptilolite is the most abundant zeolite mineral in nature, its synthesis under laboratory conditions has been difficult. A partial crystallization field study was done for the synthesis of clinoptilolite based on a nominal batch composition of 2.1Na(2)O:Al2O3:10Si(2)O:110H(2)O to delineate the limits of composition and temperature within which sodium clinoptilolite can be produced as a single phase in high yields. Effects of temperature, SiO2/Al2O3 molar ratio in the batch composition, and the ...
Citation Formats
H. Orbey, “Crystallization of zeolite X in a continuous stirred tank reactor.,” Middle East Technical University, 1979.
METU IIS - Integrated Information Service open@metu.edu.tr