Eutectic point

chound

What is eutectic point?

ccl4

see here:

http://en.wikipedia.org/wiki/Eutectic



ccl4

chound

Actually I read that but couldnt understand what was written that's why I posted here

Astronuc

chound, what is not clear in the wikipedia article.

The key point is:
In the two phase diagram given, the eutectic is found at the "V" of the liquid phase, where the vertex touches the horizontal line. The horizontal line represents a constant temperature, and the vertex represents a specific composition. The eutectic represents the point where that composition goes 'directly' from solid to liquid, i.e. without partially melting to a solid-liquid combination.

The example of the steel (Fe - C) system is perhaps better.
http://en.wikipedia.org/wiki/Eutectic#Eutectoid
This figure shows the eutectic and eutectoid.

Then there is a three-phse reactions diagram below that:
http://en.wikipedia.org/wiki/Image:T...-Reactions.png ,
which should be more clear.

Here is another site which discusses binary phase diagrams.
http://csmres.jmu.edu/geollab/Fichte...x/BinryEu.html

Gokul43201

Look at this post from another forum. It may be helpful.

http://www.scienceforums.net/forums/...6&postcount=20