- #1
Kmenex
- 28
- 0
I am trying to do a simple calculation to figure out how much of a certain material must be added to another to produce a specific volume and weight.
Sadly, such a simple problem i cannot figure out! Naturally i thought i would ask.
In essence i wanted to know how much single walled carbon nanotubes need to placed into a pure aluminum structure to produce a bulk density of 1.5g/cm^3, where the density of aluminum is 2.7g/cm^3 and the single wall nanotubes are .15g/cm^3. The volume must be 31.4cm^3, and i had done a rough calculation for a theoretical nanotube which was 2nm in diameter and 10cm in length and found it to be 3.14 *10^-13 cm^3 per tube.
Thus, we get close to the needed density when we split the volumes in half (half aluminum, half carbon nanotube). Regardless of the possibility of such a structure i am left speechless in that i cannot figure out how to do this simple calculation to determine what volume % of each is needed to get 47grams, or a density of 1.5g/cm^3
Would anyone mind jumpstarting my brain really quick?
Sadly, such a simple problem i cannot figure out! Naturally i thought i would ask.
In essence i wanted to know how much single walled carbon nanotubes need to placed into a pure aluminum structure to produce a bulk density of 1.5g/cm^3, where the density of aluminum is 2.7g/cm^3 and the single wall nanotubes are .15g/cm^3. The volume must be 31.4cm^3, and i had done a rough calculation for a theoretical nanotube which was 2nm in diameter and 10cm in length and found it to be 3.14 *10^-13 cm^3 per tube.
Thus, we get close to the needed density when we split the volumes in half (half aluminum, half carbon nanotube). Regardless of the possibility of such a structure i am left speechless in that i cannot figure out how to do this simple calculation to determine what volume % of each is needed to get 47grams, or a density of 1.5g/cm^3
Would anyone mind jumpstarting my brain really quick?