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The influence of zirconia precursor/binding polymer mass ratio in the intermediate electrospun composite fibers on the phase transformation of final zirconia nanofibers
Author(s) -
Rodaev Vyacheslav V.,
Zhigachev Andrey O.,
Korenkov Viktor V.,
Golovin Yuri I.
Publication year - 2016
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201600047
Subject(s) - materials science , nanofiber , cubic zirconia , monoclinic crystal system , scanning electron microscope , chemical engineering , calcination , phase (matter) , composite number , ceramic , mass fraction , fiber , tetragonal crystal system , polymer , electrospinning , composite material , crystallography , crystal structure , chemistry , organic chemistry , catalysis , engineering
Nanofibrous zirconia was fabricated by calcination of electrospun zirconium oxychloride/polyethylene oxide (PEO) composite fibers with different mass fraction of the components. ZrO 2 nanofibers were characterized by scanning electron microscopy (SEM), nitrogen adsorption at 77 K, and X‐ray diffractometry (XRD). It was revealed that increase in ZrOCl 2 /PEO mass ratio above the threshold value significantly decreases tetragonal phase (t‐ZrO 2 ) content and increases monoclinic phase (m‐ZrO 2 ) content in final ceramic nanofibers. Distinct t‐ZrO 2 → m‐ZrO 2 transformation takes place when average ZrO 2 grain size approaches to 30 nm.