Calculate the density of composite materials

[sasan98]

TL;DR

Calculate the density of composite materials

Hello
Please help me. I'm not a chemistry student and I don't have a chemistry-related course, so please explain in a very simple way. Thank you.
I have a composite composition that I only have the weight percentage of atoms and I need to calculate the density so that I can check the properties of the material, for example, Al is 0.6%, O is 0.4%.

 

[DrClaude]

TL;DR Summary: Calculate the density of composite materials

Hello
Please help me. I'm not a chemistry student and I don't have a chemistry-related course, so please explain in a very simple way. Thank you.
I have a composite composition that I only have the weight percentage of atoms and I need to calculate the density so that I can check the properties of the material, for example, Al is 0.6%, O is 0.4%.

If that is the only information you have, then there is not much you can calculate.

(For example, even if you know that your sample is 100% carbon, is it diamond or graphite?)

 

[Borek]

for example, Al is 0.6%, O is 0.4%.

What about remaining 99%?

(Not that it will help much - as @DrClaude already wrote, there is not enough information to proceed.)

 

[Frabjous]

To make what @DrClaude said explicit: The density of graphite is 2.26 g/cc. The density of diamond is 3.51 g/cc. Both graphite and diamond are 100% carbon. Composition is not enough to determine density.

 

[Mayhem]

To make what @DrClaude said explicit: The density of graphite is 2.26 g/cc. The density of diamond is 3.51 g/cc. Both graphite and diamond are 100% carbon. Composition is not enough to determine density.

Interestingly, it's probably easier to make some predictions about the density of composites as the number of ways the material is likely to pack is probably reduced. Still not enough information, though.

 

[Vanadium 50]

I don't think this is easy to predict - look at the phase diagram for alloys. Not at all simple. Heck, look at one for ice.