How to Calculate and Solve for Diffusion Gradient | Diffusion in Alloying

Last Updated on January 12, 2023

The image above represents diffusion gradient.

To compute for diffusion gradient, four essential parameters are needed and these parameters are Concentration of Metal A (CA), Concentration of Metal B (CB), Points of Metal A (xAand Points of Metal B (xB).

The formula for calculating diffusion gradient:

dC/dx = (CA – CB)/(xA – xB)


dC/dx = Diffusion Gradient
CA = Concentration of Metal A
CB = Concentrations of Metal B
xA = Points of Metal A
xB = Points of Metal B

Let’s solve an example;
Find the diffusion gradient when the concentration of metal A is 2, the concentration of metal B is 3, the points of metal A is 4 and the points of metal B is 6.

This implies that;

CA = Concentration of Metal A = 2
CB = Concentrations of Metal B = 3
xA = Points of Metal A = 4
xB = Points of Metal B = 6

dC/dx = (CA – CB)/(xA – xB)
dC/dx = (2 – 3)/(4 – 6)
dC/dx = (-1)/(-2)
dC/dx = 0.5

Therefore, the diffusion gradient is 0.5

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the diffusion gradient.

To get the answer and workings of the diffusion gradient using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web –

To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via

Android (Paid) –
Android (Free) –

Apple (Paid) –
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Diffusion In Alloying under Materials and Metallurgical

Now, Click on Diffusion Gradient under Diffusion In Alloying

The screenshot below displays the page or activity to enter your values, to get the answer for the Diffusion Gradient according to the respective parameter which is the Concentration of Metal A (CA), Concentration of Metal B (CB), Points of Metal A (xAand Points of Metal B (xB).

Now, enter the values appropriately and accordingly for the parameters as required by the Concentration of Metal A (CA) is 2, Concentration of Metal B (CB) is 3, Points of Metal A (xA) is 4 and Points of Metal B (xB) is 6.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the diffusion gradient and presents the formula, workings and steps too.

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