Diagram Example : 3D Chemical Potential Diagram 4b

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Related Example 4a   to Description   to Detailed

Making (La, Mn, Zr, ZrO₂) Transparent

The chemical potential diagram for the La-Mn-Zr-O system at 1273 K.

1. Diagram : The three dimensional diagram in the μ(La)-μ(Mn)-μ(Zr) plot.
   
   
   

   Description of Diagram Example : 3 D Chemical Potential Diagram (4b)
   Making (La, Mn, Zr, ZrO₂) Transparent
   to Top to Description to Detailed
   

   • This diagram should be compared with Example 4a which shows the diagram in the same system but without any making transparent.
     
   • This should be also compared with Example 3b which shows the diagram in the same system under the condition of a (ZrO₂) = 1.0.
     
   • Since the ZrO₂ phase is made transparent, the appearing phases, MnO, Mn₃O₄, Mn₂O₃, MnO₂, LaMnO₃, La₂Zr₂O₇, are in equilibrium with ZrO₂. In this sense, the phase arrangement is similar to those in Example 3b.
     
   
   
2. Detailed procedure for reproducing Diagram Example 3D Chemical Potential Diagram (4b)
   Making (La, Mn, Zr, ZrO₂) Transparent
   to Top to Description to Detailed
   

   1. [System] MALT

      Search Compounds

   Selection of <La,Mn,Zr,O> system

   2. Project > Chemical System

   3. [Chemical System] dialog
      
      • [Select Compound] page
        
        Selection by Default
        
        x Condensed phases
        o Respective Gaseous Species
        o Gaseous mixture
        

   4. Project > Specify Diagram

   5. [Diagram Specification]Dialog Main part
      
      • (1) Dimension SelectionPage
        
        Temperature
        
        x Fixed at 1273 K
        o Not Fixed
        
        Pressure
        
        x Fixed at 1 atm
        o Not Fixed
        
      • (3) Diagram Selection page
        
        {Diagram Selection}
        
        3D Chemical Potential Diagram
        Coordinates
        
        (La)
        (Mn)
        (Zr)
        

   6. Run > Calculation

   7. Diagram > Color Details

   8. [Diagram Action Form]
      
      (3) Polygon Color
      
      (1)Tricolors based on the Space Dimensions
      
      (LA) red
      (Mn) yellow
      (O) Blue
      
      ! NO specification is made on (Zr) so thatn Zr phase will appear as white.
      (3){Colors based on Given Colors} Page
      
      1) Select first "Current TriColor" button
      
      29 Then, Select "LaMnO3" phase and
      Change Color to red
      

   9. View > Graph Inspector

   10. [Graph Inspector]
       
       {Compounds} Page
       
       Click "La", "Mn", "Zr" and "ZrO₂"