Microstructure and phase composition of CaO doped zirconia nanofibers

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• 作者：Vyacheslav V. Rodaev ; ^{rodaev1980@mail.ru" class="auth_mail" title="E-mail the corresponding author} ; Andrey O. Zhigachev ; Yuri I. Golovin
• 关键词：A. Electrospinning ; B. Ceramic nanofibers ; B. Phase composition ; D. CaO doped zirconia
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：1200-1204
• 全文大小：553 K

文摘

CaO doped nanofibrous zirconia (ZrO₂) was fabricated by calcination of electrospun zirconium oxychloride (ZrOCl₂)/ calcium nitrate (Ca(NO₃)₂)/polyethylene oxide (PEO) composite fibers. ZrO₂ nanofibers were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffractometry (XRD). It is revealed that CaO content variation in ceramic filaments calcined at 1200 °C allows fabricating fully monoclinic, or fully cubic zirconia nanofibers, or nanofibers containing both tetragonal and cubic phases. CaO stabilized fully tetragonal zirconia nanofibers can be prepared at lower calcination temperature.