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    STUDIA GEOLOGIA - Issue no. 1 / 2001  
         
  Article:   DURITATEA PRODUSELOR OBŢINUTE DIN TOPITURI BAZALTICE RĂCITE ŞI CRISTALIZATE.

Authors:  DANIELA OGREAN.
 
       
         
  Abstract:  The Hardness of Synthetic Products Obtained from Cooled and Crystallized Basaltic Melts. Hardness is one of the main properties of the products obtained from cooled and crystallized basaltic melts under a controlled thermal regime. It influences the abrasion tear resistance of the resulted material. The microhardness measurements on the samples (bricks, boards, gutters, armour plates, tubes) indicated Vickers hardness value between 757ľ926 for the materials obtained from Şanovita basalts (Timiş district) and between 539ľ958 respectively, in case of the Racoş basalts (Braşov district). There is a certain variation of the hardness within the same sample, in various measurement points, within the theoretical limits of the hardnesses of the pyroxenes and that of the spinels.  
         
     
         
         
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