what are the values of latent heat of melting and boiling points (Lf and Lv) of Hafnium Oxide ? how to calculate ?
Dear Dhananjaya Munthala,
Look the links, may be useful.
http://www.engineeringtoolbox.com/melting-boiling-temperatures-d_390.html
http://www-pub.iaea.org/MTCD/Publications/PDF/IAEA-THPH_web.pdf
Regards, Shafagat
Interesting question. I was a little surprised that data was readily availible. The data I found just googling was all over the place.
As the attached paper points out it is very hard to get good experimental data for very high temperature ceramics. However the paper points out that over the lat 10 years or so people are starting to be able to calculate phase diagrams better. It used to be that you couldn't really rely on first principle calculations that much.
I guess my other recommendation would be to also look at the literature for ZrO2. It is likely close to HfO2 in how it behaves. There is probably more publications. If you calculate one you might want to calculate the other to compare your accuracy with published data.
Dear John Muth, Thank you very much.
from one week i am trying very hard to find out, but i could not. even the attached paper is having entire periodic table except my little brother -HfO2.
i have one more doubt, enthalpy and latent heat are same or different while phase transition ?
Dear Shafagat Mahmudova, these papers are relevant to me, Thank you very much.
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