Construct Binary Phase Diagram from Ternary Phase Diagram

[dadon]

Hi all,

I need some help on the ternary phase diagram. What I'm trying to do is get a binary phase diagram from the ternary phase diagram, like the one shown in the first picture. I been set a question of getting the phase BO (second picture), not the usual AB, BC etc..

How do I construct a binary phase diagram, like that?

Thanks

 

[Mapes]

Have far have you gotten? If you know the ternary eutectic information, what does that tell you about the horizontal line in your new diagram?

 

[oswaler]

for your question. Constructing a binary phase diagram from a ternary phase diagram can be a bit tricky, but it is definitely doable. First, it's important to understand the basics of a ternary phase diagram. A ternary phase diagram represents the phases that exist at different compositions of three components, usually denoted as A, B, and C. Each point on the diagram represents a specific composition of these three components, and the lines connecting these points represent the boundaries between different phases.

To construct a binary phase diagram from a ternary phase diagram, you will need to select two of the three components and fix their compositions, while varying the composition of the third component. For example, if you want to construct a binary phase diagram for components A and B, you can fix the composition of component C at a certain point and vary the compositions of A and B along the line connecting the points where C is present in the ternary phase diagram.

Once you have selected the two components and their fixed compositions, you can plot the points where the two components are present in the ternary phase diagram on a new graph. These points will represent the boundaries between different phases in the binary system. By connecting these points, you can construct a binary phase diagram for the two selected components.

In the case of your specific question, where you are trying to get the phase BO from the ternary phase diagram, you will need to fix the compositions of components A and C, and vary the composition of component B along the line connecting the points where A and C are present in the ternary phase diagram. The points where B is present will represent the boundaries between the phases B and O, and by connecting these points, you can construct the binary phase diagram for components B and O.

I hope this helps you understand the process of constructing a binary phase diagram from a ternary phase diagram. It may take some practice and experimentation, but with a good understanding of the principles behind it, you should be able to successfully construct a binary phase diagram for any two components of interest. Best of luck!