The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA CHEMIA - Issue no. 2 / 2020  
         
  Article:   HIGH-TEMPERATURE SOLID-STATE SYNTHESIS OF Mg-DOPED ZrO2: STRUCTURAL, OPTICAL AND MORPHOLOGICAL CHARACTERIZATION.

Authors:  ANTONELA BERAR, MARIETA MUREȘAN-POP, LUCIAN BARBU-TUDORAN, RÉKA BARABÁS, LILIANA BIZO.
 
       
         
  Abstract:  
DOI: 10.24193/subbchem.2020.2.18

Published Online: 2020-06-30
Published Print: 2020-06-30
pp. 221-232
VIEW PDF: FULL PDF

ABSTRACT: 15 at% Mg-doped ZrO2 ceramic material was synthesized by solid-state reaction at 1600 ºC. Particle size analysis of raw materials mixture depicts the formation of a narrow particle size distribution (PSD) with a mean particle size of about 56 nm. The structural analysis confirms that the as-synthesized Mg-doped ZrO2 product is of pure tetragonal phase (t- ZrO2) with a crystallite size of 55.76 nm. The UV–VIS diffuse reflectance spectrum (DRS) showed a maximum %R at 550 nm and the estimated optical bandgap was about 3.83 eV. The morphology of the sample examined by scanning electron microscopy (SEM) shows interconnected grains in the sintered ceramics. Moreover, EDX analyses confirm the presence of Mg, Zr, and O, with a homogenous distribution throughout the sample.

Key words: Mg-doped ZrO2, solid-state reactions, XRPD, UV-VIS spectroscopy, SEM/EDX
 
         
     
         
         
      Back to previous page