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Evidence of oxygen content heterogeneity in TSMTG YBa2Cu3O7−δ/Y2BaCuO5 composites by micro-Raman spectrometry
- Source :
- Physica C: Superconductivity and its Applications, Physica C: Superconductivity and its Applications, 2008, 468 (5), pp.388-393. ⟨10.1016/j.physc.2007.12.006⟩, Physica C: Superconductivity and its Applications, Elsevier, 2008, 468 (5), pp.388-393. ⟨10.1016/j.physc.2007.12.006⟩
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- International audience; The homogeneity of the oxygen content of TSMTG-YBa2Cu3O7 − δ/Y2BaCuO5 composites has been investigated by micro-Raman spectrometry. The Y123 compound has been found to be very sensitive to the laser power, but a laser power of 0.04 mW has been shown to not to be harmful for the samples, even after 2 h of irradiation. Raman spectra have shown that the oxygen content of YBa2Cu3O7 − δ/Y2BaCuO5 ceramics is not homogeneous at the micrometer scale. In addition, no monotonic decrease of the oxygen content is observed from the periphery to the core of the sample, confirming that the oxygen uptake is not strictly controlled by a diffusion process.
- Subjects :
- 010302 applied physics
Materials science
Annealing (metallurgy)
Energy Engineering and Power Technology
chemistry.chemical_element
[CHIM.MATE]Chemical Sciences/Material chemistry
Condensed Matter Physics
Mass spectrometry
Microstructure
01 natural sciences
Oxygen
Electronic, Optical and Magnetic Materials
symbols.namesake
chemistry
visual_art
0103 physical sciences
visual_art.visual_art_medium
symbols
Ceramic
Irradiation
Laser power scaling
Electrical and Electronic Engineering
Composite material
010306 general physics
Raman spectroscopy
Subjects
Details
- ISSN :
- 09214534
- Volume :
- 468
- Database :
- OpenAIRE
- Journal :
- Physica C: Superconductivity
- Accession number :
- edsair.doi.dedup.....47aece18a975173fc80ba75f4c3cef8b
- Full Text :
- https://doi.org/10.1016/j.physc.2007.12.006