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 PHYSICA - Issue no. 2 / 2006  
         
  Article:   LOCAL STRUCTURE OF 3B2O3-PBO-AG2O BASED GLASSES ANALYZED THROUGH RAMAN SPECTROSCOPY.

Authors:  I. ARDELEAN, R. CICEO-LUCACEL, A.O. HULPUS. 		 
       
         
  Abstract:  Glasses from xCuO(1-x)[3B2O3(1-y)PbOyAg2O] (0 x 0.1 and y = 0.1, 0.3) system were prepared and studied by means of Raman scattering. For both systems were found bands characteristic to borate based glasses structure such as: boroxol rings, diborate, pyroborate and metaborate groups. It was evaluated the influence of both Ag2O/PbO ratio and CuO variation on the short-range order (SRO) of the network in order to obtain information concerning the local structure of copper-doped 3B2O3-PbO-Ag2O glass matrices. Increasing the Ag2O/PbO ratio induces a higher degree of glass network disorder. Controlled addition of cooper ions determined a decrease in the intensity of the borate Raman bands for both systems denoting a progressively disorder of their vitreous network.  
         
     
         
         
      Back to previous page