Open AccessDETERMINATION OF THE SIZES OF PARTICLES OF SUPERCONDUCTING CUPRATE Y3Ba5Cu8OX BY MEANS OF DIFFERENT METHODS
Author(s) -
Анастасія Болотнікова
Publication year - 2020
Publication title -
technology transfer: fundamental principles and innovative technical solutions/technology transfer: fundamental principles and innovative technical solutions.
Language(s) - English
Resource type - Journals
eISSN - 2585-6847
pISSN - 2585-6839
DOI - 10.21303/2585-6847.2020.001504
Subject(s) - scherrer equation , materials science , particle size , superconductivity , precipitation , scanning electron microscope , sample size determination , particle size distribution , analytical chemistry (journal) , diffraction , sample preparation , microstructure , cuprate , mineralogy , chemistry , chromatography , condensed matter physics , physics , statistics , mathematics , metallurgy , composite material , optics , meteorology
The superconducting cuprate Y3Ba5Cu8Ox was obtained with the help of sol-gel technology (sample C), co-precipitation of hydroxocarbonates (sample B) and solid-phase synthesis methods (A). Based on the results of scanning electron microscopy and methods based on the analysis of X-ray diffraction data: the Williamson-Hall construction and the Scherrer formula, features of the microstructure of the synthesized samples are established. The smallest particle size has a sample that has been synthesized by the sol-gel method. The tendency to aggregation and sedimentation for this sample is the smallest. The sample obtained by the co-precipitation method has larger grains and a higher tendency to aggregate. The size of the microparticles and the tendency to aggregate for the sample synthesized by the solid-phase method are greatest. The morphology of particles was studied using three methods: SEM, Scherrer and Williamson-Hall formulas and the following results were found: particle size depends on the synthesis method, but a relatively narrow size distribution within one synthesis method remains, the value of crystal lattice microdeformation for samples increases in a line: C sample– A sample– B sample. Thus, the work was carried out for determining the size, structure and morphology of superconducting phases. It expands knowledge in the field of research of superconducting compounds