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Reduction of the strontium titanate doped by Ytrium ceramics observed by X-ray photoemission spectroscopy method
Description
Ytrium-doped strontium titanate (YSTF) ceramics materials were manufactured by three various methods: 1) standard solid-state reaction method from Y2O3 (Sigma Aldrich, 99,9%), TiO2 (Sigma Aldrich, 99%) and SrCO3 (Sigma Aldrich,98%), 2) Pechini method, 3) wet method.
Both kind of samples were measured, after and before reduction process (in a hydrogen). Reduction of samples carried out at 750 Celsius degree. To observe results of the reduction process, valence states of elements of manufactured samples was measured by XPS method. The Analyses were carried out with X-ray photoelectron spectrometer (Omicron NanoTechnology) with 128-channel collector. XPS measurements were performed at room temperature in a ultra-high vacuum conditions, below 1.1 x10-8 mBar. The photoelectrons were excited by an Mg-Ka X-Ray source. The X-ray anode was operated at 15 keV and 300 W. Omicron Argus hemispherical electron analyser with round aperture of 4 mm was used for analysing of emitted photoelectrons. The binding energies were corrected using the background C1s line (285.0 eV). XPS spectra were analysed with Casa-XPS software using a Shirley background subtraction and Gaussian–Lorentzian curve as a fitting algorithm.
Dataset file
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} where a single part of the file is 512 MB in size.Example script for calculation:
https://github.com/antespi/s3md5
File details
- License:
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CC BYAttribution - Raw data:
- Data contained in dataset was not processed.
- Software:
- origin
Details
- Year of publication:
- 2021
- Verification date:
- 2021-07-15
- Creation date:
- 2019
- Dataset language:
- English
- Fields of science:
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- materials engineering (Engineering and Technology)
- DOI:
- DOI ID 10.34808/qm00-z683 open in new tab
- Verified by:
- Gdańsk University of Technology
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