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Material Codex is run by current students of CUET MME (est.2019), dedicated to make both Materials Science Engineering & Metallurgy related education easier and more accessible for everyone through visual storytelling

26/08/2026

https://youtu.be/fLNMLlrPH_Q

In this lecture, we derive the reciprocal lattice of a Face-Centered Cubic (FCC) crystal step by step and demonstrate one of the fundamental results in crystallography ; that the reciprocal lattice of an FCC crystal is a Body-Centered Cubic (BCC) lattice.

Topics Covered:

✔ Face-Centered Cubic (FCC) crystal structure
✔ Primitive translational vectors of FCC
✔ Step-by-step reciprocal lattice derivation
✔ Why the reciprocal lattice of FCC is BCC
✔ Cubic F and Cubic I notation

This video was covered by:
Musthafijur Rahman Thanim

15/08/2026

https://youtu.be/Dc-5gwDY1X0
In this lecture, we derive the reciprocal lattice of a Body-Centered Cubic (BCC) crystal.

Topics Covered:
✔ Body-Centered Cubic (BCC) crystal structure
✔ Primitive translational vectors of BCC
✔ Step-by-step reciprocal lattice derivation
✔ Why the reciprocal lattice of BCC is FCC

This video was covered by:
Musthafijur Rahman Thanim

08/08/2026

𝐓𝐡𝐞 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 𝐁𝐞𝐡𝐢𝐧𝐝 𝐌𝐞𝐝𝐢𝐧𝐚'𝐬 𝐆𝐢𝐚𝐧𝐭 𝐔𝐦𝐛𝐫𝐞𝐥𝐥𝐚𝐬!!!!

At first glance, they look like giant umbrellas.
In reality, they are remarkable feats of engineering, designed to provide shade and comfort to thousands of visitors in Medina's extreme desert climate.

Using advanced PTFE-coated fiberglass, these structures combine materials science, architecture, and automation to create one of the world's most beautiful examples of functional design.

Concept: Inspired by RUET Materials Club
Design: Musthafijur Rahman Thanim

30/07/2026

🏎️ When the Halo was introduced in Formula 1, many criticized it for ruining the sport's iconic look. Today, it stands as one of the most important safety innovations in motorsport history.

Made from Ti-6Al-4V titanium alloy, the Halo redirects enormous impact forces away from the driver's head, helping protect drivers during some of the sport's most devastating crashes.Who would have thought the most controversial design would become the most life-saving one!

Concept: Tamjidur Rahman
Design: Musthafijur Rahman Thanim

28/07/2026

https://youtu.be/5BAPhEtHfIs
In this lecture, we determine the reciprocal lattice of a simple cubic (SC) crystal step by step and understand why it is one of the most important concepts in crystallography.

Topics Covered:
✔ Simple cubic (SC) crystal structure
✔ Primitive translational vectors of SC
✔ Determination of the reciprocal lattice
✔ Geometry of the reciprocal lattice
✔ Why the reciprocal lattice of SC is also simple cubic
✔ Experimental verification using X-ray diffraction
✔ Physical interpretation of diffraction spots

This video was covered by:
Musthafijur Rahman Thanim

24/07/2026

In this lecture, we derive the primitive translational vectors of the reciprocal lattice step by step and understand their physical meaning in crystallography.
https://youtu.be/F1UOFN6zcw8

Topics Covered:
✔ Primitive translational vectors
✔ Reciprocal lattice vectors
✔ Step-by-step derivation
✔ Physical meaning of reciprocal vectors
✔ Relation between direct and reciprocal lattice

This video was covered by:
Musthafijur Rahman Thanim

14/07/2026

◼️ 𝐍𝐞𝐰 𝐋𝐞𝐜𝐭𝐮𝐫𝐞 𝐑𝐞𝐥𝐞𝐚𝐬𝐞𝐝! "𝐈𝐧𝐭𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐭𝐨 𝐑𝐞𝐜𝐢𝐩𝐫𝐨𝐜𝐚𝐥 𝐋𝐚𝐭𝐭𝐢𝐜𝐞"
https://youtu.be/NpJtDZJbYH8?si=fX_QHTyMUvH4udJb

Reciprocal lattice is one of the most fundamental concepts in crystallography, yet it's often one of the most confusing for students.

In this lecture, we'll start from the very beginning:
✔ What is a reciprocal lattice?
✔ Why do we need it?
✔ How is it constructed?
✔ What is its connection to X-ray diffraction?
Conducted by: Musthafijur Rahman Thanim

12/07/2026

𝐀𝐧𝐨𝐭𝐡𝐞𝐫 𝐜𝐮𝐫𝐬𝐞 𝐡𝐚𝐬 𝐛𝐞𝐞𝐧 𝐥𝐢𝐟𝐭𝐞𝐝 𝐟𝐨𝐫 𝐌𝐌𝐄-24!

Today, we're proud to announce the completion of our "Reciprocal Lattice" playlist: one of the core concepts in crystallography and, without a doubt, one of the hardest topics for students to truly understand.

And we're not releasing it after the exams; we're releasing it 7 days before the MSE exam, when it can make the biggest difference.

The entire playlist is just 33 minutes long, carefully designed so that by completing it, students can confidently answer Reciprocal Lattice questions in the exam.

For now, the playlist is available exclusively to MME-24. We'll gradually release the videos to the public to better align with the YouTube algorithm. With this, Material Codex is on track to cross 30+ educational videos, with many more to come.

We may not be the biggest organization. We may not even be the most productive one. But if there's one thing we strive to be, it's the most helpful.

One chapter down. One less nightmare for MME-24. Many more to go.

— Team Material Codex

10/07/2026

✈️ Have you ever wondered why airplane windows are always round?

It isn't just for aesthetics; it's a brilliant engineering decision that has made modern air travel significantly safer. A simple change in shape helps prevent dangerous stress concentrations and fatigue cracks in an aircraft's fuselage.

Concept & Design: Musthafijur Rahman Thanim

08/05/2026

𝐕𝐢𝐝𝐞𝐨 𝐥𝐢𝐧𝐤:https://youtu.be/qC19P-kV4hE

In this episode, we explore one of the most important concepts in materials science and failure analysis — the Ductile-to-Brittle Transition (DBTT)
In this video, we explore:
- Why temperature changes fracture behavior
-Why some steels become brittle in cold weather
-How alloying and carbon content affect transition temperature
-Why structural steels are kept low in carbon
Covered by:
Musthafijur Rahman Thanim

Address

CUET, Pahartoli, Raozan
Chittagong
4349

Website

https://cuet.ac.bd/department/MME

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