Al and Ti Alloy Formation with Flux

[physicist888]

Al and Si?? flux??

to creat a film of alloy Al and Ti we use to flux of each element and a substrat.
if the flux of Al is double of that of Ti, then we obtain an alloy on the substrat AlTi or what?

 

[Astronuc]

What is the substrate?

I believe the goal is something like TiAl (titanium aluminide), although Ti₃Al is apparently of interest as well.

See - http://www.azom.com/details.asp?ArticleID=1548

Aluminides are intermetallic compounds. A wide range of potentially useful alloys of these have been investigated with attention now concentrated on gamma (Ti-Al) and orthorhombic alloys. Alpha and super-alpha compositions (TiAl₃ based) are no longer of significant interest.

http://www.ms.ornl.gov/researchgroups/process/craigblue/HTML2/HDI%20PROCESSHE%20HTML/HDI%20HTML/index.htm

This might be of interest - http://gltrs.grc.nasa.gov/reports/1999/TM-1999-209071.pdf

 

[physicist888]

its not about the type of substrat. its about a pulverisation of two source Al and Ti do depose an alloy on the substrat. if the flux of Al pulverized equal = 2* flux of Ti, so which alloy we obtain??

 

[Astronuc]

its not about the type of substrat. its about a pulverisation of two source Al and Ti do depose an alloy on the substrat. if the flux of Al pulverized equal = 2* flux of Ti, so which alloy we obtain??

Is that on an atomic basis? or mass, which would be different.

With Al = 2*Ti, I would imagine a mix of Ti-Al, and Ti-Al₃, not knowing anything other information.

Is this a plasma spray, vapor deposition, or sputtered coating?

 

[physicist888]

its sputtering

 

[f95toli]

Again, you can't calculate it. If it is done usings sputtering (what kind?) you have a few process parameters to play around with; mainly temperature.
For practical film depostion it will also -to some extent- be specific to the equipment you are using.
The only way to do this properly is to deposit a lot of films under different conditions and analyze them (using XRD and some type of surface spectroscopy, e.g. Auger): this will give you a "map".