The image of critical radius for heterogenous nucleation. To calculate critical radius for heterogeneous nucleation, two essential parameters are needed and these parameters are **Solid – Liquid Interface (Î³ _{SL})Â **andÂ

**Volume Free Energy (Î”G**

_{v}).**The formula for calculating critical radius for heterogeneous nucleation:**

r* =Â ^{2Î³SL}/_{Î”Gv}

Where:

r* = Critical Radius for Heterogeneous Nucleation

Î³_{SL}Â = Solid – Liquid Interface

Î”G_{v}Â = Volume Free Energy

Let’s solve an example;

Find the critical radius for heterogenous nucleation when the solid – liquid interface is 24 and the volume free energy is 3.

This implies that;

Î³_{SL} = Solid – Liquid Interface = 24

Î”G_{v} = Volume Free Energy = 3

r* =Â ^{2Î³SL}/_{Î”Gv}

So, r* = ^{2(24)}/_{3}

r* =Â ^{48}/_{3}

r* = 16

Therefore, theÂ **critical radius for heterogenous nucleationÂ **isÂ **16 mm.**

**Calculating the Solid-Liquid Interface when the Critical Radius for Heterogenous Nucleation and the Volume Free Energy are Given**

Î³_{SL} = ^{r*Î”Gv} / _{2}

Where:

Î³_{SL}Â = Solid – Liquid Interface

r* = Critical Radius for Heterogeneous Nucleation

Î”G_{v}Â = Volume Free Energy

Let’s solve an example;

Find the solid – liquid interface when the critical radius for heterogenous nucleation is 15 and the volume free energy is 4.

This implies that;

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r* = Critical Radius for Heterogeneous Nucleation = 15

Î”G_{v} = Volume Free Energy = 4

Î³_{SL} = ^{r*Î”Gv} / _{2}

Then, Î³_{SL} = ^{(15)(4)} / _{2}

Î³_{SL} = ^{60} / _{2}

Î³_{SL} = 30

Therefore, theÂ **solid-liquid interface **isÂ **30.**

**Calculating the Volume Free Energy when the Critical Radius for Heterogenous Nucleation and the Solid – Liquid Interface are Given**

Î”G_{v} = ^{2Î³SL} / _{r*}

Where:

Î”G_{v}Â = Volume Free Energy

r* = Critical Radius for Heterogeneous Nucleation

Î³_{SL} = Solid – Liquid Interface

Given an example;

Find the volume free energy when the critical radius for heterogenous nucleation is 10 and the solid – liquid interface is 30.

This implies that;

r* = Critical Radius for Heterogeneous Nucleation = 10

Î³_{SL} = Solid – Liquid Interface = 30

Î”G_{v} = ^{2Î³SL} / _{r*}

So, Î”G_{v} = ^{2(30)} / _{10}

Î”G_{v} = ^{60} / _{10}

Î”G_{v} = 6

Therefore, theÂ **volume free energyÂ **isÂ **6.**

**How to CalculateÂ Critical Radius for Heterogeneous Nucleation Using Nickzom Calculator**

Nickzom Calculator â€“Â **The Calculator Encyclopedia** is capable of calculating the critical radius of heterogenous nucleation.

To get the answer and workings of the critical radius of heterogenous nucleation using the **Nickzom Calculator â€“ The Calculator Encyclopedia.Â **First, you need to obtain the app.

You can get this app via any of these means:

**Web**Â â€“Â https://www.nickzom.org/calculator-plus

To get access to theÂ **professionalÂ **version via web, you need toÂ **register**Â andÂ **subscribeÂ **to have utter access to all functionalities.

You can also try theÂ **demoÂ **version viaÂ https://www.nickzom.org/calculator

**Android (Paid)**Â â€“Â https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)**Â â€“Â https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)**Â â€“Â https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to theÂ **Calculator Map,Â **then click onÂ **Materials and MetallurgicalÂ **underÂ **Engineering****.**

Now, Click onÂ **Phase Transformation****Â **underÂ **Materials and Metallurgical**

Now, Click on **Critical Radius of Heterogenous Nucleation****Â **underÂ **Phase Transformation**

The screenshot below displays the page or activity to enter your values, to get the answer for the critical radius of heterogenous nucleation according to the respective parameter which is the **Solid – Liquid Interface (Î³ _{SL})Â **andÂ

**Volume Free Energy (Î”G**

_{v}).Now, enter the values appropriately and accordingly for the parameters as required by the **Solid – Liquid Interface (Î³ _{SL})** is

**24**and

**Volume Free Energy (Î”G**is

_{v})**3**.

Finally, Click on Calculate

As you can see fromÂ the screenshot above,Â **Nickzom Calculator**â€“ The Calculator Encyclopedia can calculate the critical radius of heterogenous nucleation and presents the formula, workings and steps too.