Day 3 -- Master Eqns

Ok, so I've decided that I will put all the equations in the PP before breaking them down physically.

It seems in the Deschamps's paper some equations are changed/altered from other equations from cited works. Therefore, I think it's best to put the lay of the land first (the eqns) then go back and break them down physically and by each component.

A downside about the Deschamps's paper(s) is there is NOT a nomenclature section in either parts of the papers, which is rather frustrating because I have no idea what things are before i read the papers. Meaning I have to search between both papers to figure out what each variable means, and most of the time it is not clearly stated, causing me to then search for the  cited material. Then once I find (if i can find) the cited material I can figure what Deschamp'ss means, but sometimes variables/equations are different. For example, there is an equation in Deschamps's paper, which is from a different paper (the original paper). The original paper's equation is different from Deschamps's equation...NOW i have to figure out how Deschamp's got his equation, what his symbols mean, how they differ from the original paper's equation. It's a mess.

Case in point I will insert all of the equations into the PP first, then I will hash out physical meanings, variables, equations etc, which takes up most of my time...trying to figure out what things mean. Essentially, I'm learning, which is the ultimate goal of all this education right. However, I never realized how long it takes to put equations into PP, and my PP is going to be the longest PP in Microsoft PP history :)

Until next time. 

Day 2--Master Eqns

I stated in my previous post that homogeneous precipitation is half way done, which is incorrect. I meant to say thermodynamics is halfway done. At the moment, thermodynamics and nucleation & growth are done. I decided to focus on getting the eqns into the PP and adding the physical meaning to each equation after all have been inserted into the PP. Or maybe not...I'm not sure how I should do this yet. But the PP is progressing.

That is all for today.

Day 1--Master Eqns

I started a power point (PP) presentation gathering all the equations of the Dechamps et al. Precipitation Kinetics Model. The PP is separated 3 main sections: homogeneous precipitation, precipitation on dislocations and precipitation hardening. Each section has its own set of governing equations. Each governing equations has certain variables and describes a specific process in the model. Therefore, it is my job for this presentation to figure out the knowns and unknowns of each equation, while describing what the equations mean physically.

I'm having a little bit of difficulty with the thermodynamics, but I am searching for the root paper and have found it at school. So, I will find that tomorrow morning.

There are 3 different books I am using to help me learn the physical meaning of all these equations.

1. The Science and Engineering of Materials by Donald R. Askeland. 2nd Edition

2.Growth and Coarsening: Ripening in Material Processing by L. Ratke & P.W. Voorhees

3. Kinetics of Materials by R. Balluffi, S. Allen, & W. Carter.

First section of homogeneous precipitation is half way done, but i need to understand what is physically happening. Hence I need to find the Aaronson article.