Open AccessSynthesis of YSZ/TiO 2 core–shell feedstock powders via the air plasma spray method
Author(s) -
Dadfar Mohammad Reza,
Rahimipour Mohammad Reza,
Vaezi Mohammad Reza,
Gholamzadeh Abolfazl
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0751
Subject(s) - materials science , yttria stabilized zirconia , scanning electron microscope , tetragonal crystal system , monoclinic crystal system , cubic zirconia , chemical engineering , raw material , spray drying , phase (matter) , thermal spraying , powder diffraction , composite material , crystal structure , crystallography , ceramic , chemistry , organic chemistry , engineering , coating
The core–shell structures can improve material properties and easier material selections for applications in new purposes. In this study, yttria‐stabilised zirconia (YSZ)/TiO 2 feedstock powders were synthesised via the air plasma spray method to investigate morphology changes, phase transformations and formation of core–shell structure. X‐ray powder diffraction, scanning electron microscope (SEM) and EDS were used for phase analysis, morphology and core‐shell characterisation, respectively. Results revealed that YSZ/TiO 2 core–shell powders can be employed using the plasma spray method. SEM images showed that entire TiO 2 nanoparticles had melted around YSZ powder. The shell thickness was estimated between 1 and 5 μm. In the plasma process the YSZ monoclinic phases transformed to the tetragonal phases, but no changes were observed in the cubic phases.