Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6
This document reports the synthesis of the materials Sr2GdSbO6(SGSO) and GdBa2Cu3O7 −δ (GBCO), by the reaction method in solid state and GdBa2Cu3O7−δ/Sr2GdSbO6 (GBCO/SGSO) composites in different volumetric proportions. The structural characterization of the synthesized compounds w...
| Main Author: | |
|---|---|
| Format: | Online |
| Language: | spa |
| Published: |
Universidad Pedagógica y Tecnológica de Colombia
2018
|
| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4377 |
| _version_ | 1801706335762382848 |
|---|---|
| author | Montana Quintero, Nilzon |
| author_facet | Montana Quintero, Nilzon |
| author_sort | Montana Quintero, Nilzon |
| collection | OJS |
| description | This document reports the synthesis of the materials Sr2GdSbO6(SGSO) and GdBa2Cu3O7 −δ (GBCO), by
the reaction method in solid state and GdBa2Cu3O7−δ/Sr2GdSbO6 (GBCO/SGSO) composites in different
volumetric proportions. The structural characterization of the synthesized compounds was carried out by
means of X-ray diffraction, using the Rietveld refinement method, performing a quantitative analysis of
phases in volume. The results obtained confirm that the two materials (GBCO / SGSO) are chemically
stable, coexisting in the same volume at 900C. It was also found, by means of magnetization measures,
that the GBCO contained in each one of the different composites, It keeps superconducting properties, as
the transition to the superconducting state was obtained below a temperature of 90K. The morphological
characterization was performed by scanning electron microscopy (SEM) and elemental analysis by means
of dispersive energy spectroscopy (EDX) measurements. The electrical study was performed by means of
voltage measurements as a function of the current at room temperature and subsequent calculation of the
volumetric resistivity. The study of the percolative effect was carried out by calculating the critical volume
and the critical exponents in each one of the insulating and conductive phases, using the Kussy model [1]
and the semi-classical non-linear response model Random Resistor cum Tuning Bond Network (RRTN)[2],
by contrasting critical exponents with those found in the literature |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-4377 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2018 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-43772022-06-15T17:04:54Z Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 Síntesis, análisis estructural, estabilidad química, estudio magnético y efecto percolativo eléctrico del compositor GdBa2Cu3O7−δ /Sr2GdSbO6 Montana Quintero, Nilzon Supercoductividad composito Fisica Supercoductividad Superconductivity Composites This document reports the synthesis of the materials Sr2GdSbO6(SGSO) and GdBa2Cu3O7 −δ (GBCO), by the reaction method in solid state and GdBa2Cu3O7−δ/Sr2GdSbO6 (GBCO/SGSO) composites in different volumetric proportions. The structural characterization of the synthesized compounds was carried out by means of X-ray diffraction, using the Rietveld refinement method, performing a quantitative analysis of phases in volume. The results obtained confirm that the two materials (GBCO / SGSO) are chemically stable, coexisting in the same volume at 900C. It was also found, by means of magnetization measures, that the GBCO contained in each one of the different composites, It keeps superconducting properties, as the transition to the superconducting state was obtained below a temperature of 90K. The morphological characterization was performed by scanning electron microscopy (SEM) and elemental analysis by means of dispersive energy spectroscopy (EDX) measurements. The electrical study was performed by means of voltage measurements as a function of the current at room temperature and subsequent calculation of the volumetric resistivity. The study of the percolative effect was carried out by calculating the critical volume and the critical exponents in each one of the insulating and conductive phases, using the Kussy model [1] and the semi-classical non-linear response model Random Resistor cum Tuning Bond Network (RRTN)[2], by contrasting critical exponents with those found in the literature En este trabajo se reporta la síntesis de los materiales Sr2GdSbO6 (SGSO) y GdBa2Cu3O7−δ (GBCO),por el método de reacción en estado sólido y de compósitos GdBa2Cu3O7−δ /Sr2GdSbO6 (GBCO/SGSO)en diferentes proporciones volumétricas. La caracterización estructural de los compuestos sintetizadosse realizó por medio de difracción de rayos X, usando el método de re namiento Rietveld, realizando un análisis cuantitativo de fases en volumen. Los resultados obtenidos permiten con rmar que los dos materiales (GBCO/SGSO) son estables químicamente, coexistiendo en un mismo volumen a 900 C. También se encontró, mediante medidas de magnetización, que el GBCO contenido en cada uno de los diferentescompósitos, conservó sus propiedades superconductoras, ya que se obtuvo la transición al estado supercon- ductor por debajo de una temperatura de 90 K. La caracterización morfológica se realizó mediante medidas de microscopia electrónica de barrido (SEM) y análisis elemental mediante medidas de espectroscopia de energía dispersiva (EDX). El estudio eléctrico se realizó mediante medidas de voltaje en función de la corriente a temperatura ambiente y posterior cálculo de la resistividad volumétrica. El estudio del efecto percolativo se llevó a cabo mediante el cálculo del volumen crítico y de los exponentes críticos en cada una de las fases aislante y conductora, usando el modelo de Kussy [1] y el modelo de respuesta no lineal semi clásica Random Resitor cum Tunelling bond Network (RRTN) [2] contrastando los exponentes críticos, con los encontrados en la literatura. Universidad Pedagógica y Tecnológica de Colombia 2018-02-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Investigación cientifica application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4377 10.19053/01217488.v9.n1.2018.4377 Ciencia En Desarrollo; Vol. 9 No. 1 (2018): Vol 9, Núm. 1 (2018): Enero - Junio; 33-40 Ciencia en Desarrollo; Vol. 9 Núm. 1 (2018): Vol 9, Núm. 1 (2018): Enero - Junio; 33-40 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4377/pdf Derechos de autor 2018 CIENCIA EN DESARROLLO |
| spellingShingle | Supercoductividad composito Fisica Supercoductividad Superconductivity Composites Montana Quintero, Nilzon Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title | Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_alt | Síntesis, análisis estructural, estabilidad química, estudio magnético y efecto percolativo eléctrico del compositor GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_full | Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_fullStr | Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_full_unstemmed | Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_short | Synthesis, structural analysis, chemical stability, magnetic study and electric percolative effect on composite GdBa2Cu3O7−δ /Sr2GdSbO6 |
| title_sort | synthesis structural analysis chemical stability magnetic study and electric percolative effect on composite gdba2cu3o7 δ sr2gdsbo6 |
| topic | Supercoductividad composito Fisica Supercoductividad Superconductivity Composites |
| topic_facet | Supercoductividad composito Fisica Supercoductividad Superconductivity Composites |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/4377 |
| work_keys_str_mv | AT montanaquinteronilzon synthesisstructuralanalysischemicalstabilitymagneticstudyandelectricpercolativeeffectoncompositegdba2cu3o7dsr2gdsbo6 AT montanaquinteronilzon sintesisanalisisestructuralestabilidadquimicaestudiomagneticoyefectopercolativoelectricodelcompositorgdba2cu3o7dsr2gdsbo6 |
