Title

Sol-Gel Synthesis Of Sterically Stabilized Zirconia Nanoparticles

Abstract

Submicron-sized, monodispersed zireonia (ZrO2) particles as well as zirconia nanoparticles are synthesized using sol-gel technique involving hydrolysis of zirconium (IV) n-propoxide in anhydrous ethanol solution. ZrO2 nanoparticles synthesized using the present technique are sterically stabilized using hydroxypropyl cellulose (HPC) polymer. The effect of various processing parameters viz. 'R' ([water]:[alkoxide]) and HPC concentration ([HPC]) on the average nanoparticle size, their agglomeration, and phase evolution behavior is investigated. The as-synthesized and calcined zirconia nanoparticles are characterized using transmission electron microscopy (TEM) and x-ray diffraction (XRD). The different mechanisms responsible for stabilizing metastable-tetrâgonal phase in nano-sized ZrO2 particles, under different processing conditions, are discussed.

Publication Date

7-21-2003

Publication Title

TMS Annual Meeting

Number of Pages

31-40

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0038724925 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0038724925

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