Diffraction Lecture 17: Indexing Diffraction Patterns of Cubic Crystals

In this lecture we look at the X-ray powder diffraction pattern of a cubic material and see how to calculate the 2-theta values of the diffraction peaks. We see that the positions of each and every diffraction peak is determined by the length of the unit cell edge and the X-ray wavelength. We finish by manually indexing the diffraction pattern of MgO.

[@alinuraltuntas2435]

Thanks! This is the best video on XRD peak patterns on TH-cam for sure!

[@alexandrerodriguessimoes8020]

Thank you for your time and dedication to teaching!!!

[@akshaykumar-bb3bf]

This is really going to help me a lot ... in a few minutes you make us understand in the best possible way.

[@azz650]

These lectures are amazing, thank you for creating them.

[@temobadr6827]

Are you studying chemistry?

[@ichu163]

One of the best lecture series on this topic. Thanks a lot.

[@patsperovskites4733]

Thank you. I'm glad you are finding the lectures useful.

[@haidaralolaywi8557]

Thank you very much. You make it very easy.

[@Meow_yj]

Thank you, it's very well explained.

[@viktoriakrol9142]

Thank you! This really helped :)

[@VioleRose100]

Thank you very much, Can you do one for graphite?

[@analist-3000]

Thanks!

[@madikobekotsedi1163]

Thank you for the help. But I am still a bit confused as to how you calculate hkl.

[@DilipChaudhary]

Good lecture

[@gareebmusic2990]

how will you find miller induces by Diffraction angle ?

[@user-iz2et4kj9y]

24:09 why (h^2+k^2+l^2)=(1/d^2)/0.0567 ? Can you please explain how we made that conclusion, please?

[@noureddinebenharkat2476]

Very interesting Professor. Can we talk by email please?

[@user-hm2gb6pm6b]

Rajesh prasad
IIT
Kanpur

[@user-nr1xm1bf5w]

7:59 isn't that math wrong? 1.54 / (2*sin(26.5/2)) = 1.22
Made a table on Excel and most of table values are wrong

[@lifegoalslist]

To calculate the Sin function, we need to feed the value with the radians function or multiply the angle by Pi()/180 to get the actual value.