Melt vol% isopleth

3 posts · Started April 27, 2022 · Original thread

Mohammad_Miri

2022-04-27 05:42 UTC

Dear all

hi,

I want to calculate isolines for vol% of melt component of a system using Domino.

I have used Volume [ccm], Molar volume [g/mol], Volume% (of solids), and Amount [mol] options for SOLUTION PHASES and BULK ROCK in Domino but unfortunately in most cases, all the isolines lie on a single reaction curve (the first melt producing reaction) like the attached Fig.

Would you help me to do it correctly?

Best wishes

Kari

2022-08-04 10:07 UTC

Hello, I suggest you calculate the stability conditions of each phase at a specific point in interest stability field by running “domino choose the database choose the X axis (T) choose the Y axis (P) then choose “POINT” for the “calculation definition”. choose the precise point (x temperature, y pressure) you get the volumes and densities of the stable phase. you can see this in “OUT” file then you can calculate the isolpet according to the results. I hope it is going to work kari.

lotkoopmans

2023-01-11 12:21 UTC

Hi Mohammad,

I don’t know if you’re still working on this, but I think the problem you are running into is that the vol% is actually a percentage. What it seems like you’ve done there is ask it to plot isopleths betwee 0 and 1% melt, which will be why they are so close to each other.

To fix this, try and ask domino to produce isopleths from 0 to 100% at whatever interval you want.

Hope that is still of use!

Lot