Defects in Crystals

[@MrArthurUZ]

Great job. I think you have proved to teach effectively using a paper and felt tip pens.

[@ghoomophiryokoreawithtaswa732]

You are a living legend Sir... salute

[@bathroomsinger2328]

Thank you so much sir , I am MSc ( Physics ) student and watching this video for my paper (condensed matter ) having topic Lattice defect 🙏 Lots of respect from Ayodhya 🙏💝

[@rainasajid6678]

This is what real teaching looks like. A competent teacher doesn't rely on slides! Reading from slides only shows the incompetence of a teacher.

[@haris5311]

Your hand writing is outstanding sir.looks like a computer typing.

[@learnvfxart1244]

sahi keh rha bhai

[@mafiadon7533]

R8😂

[@medhawinikapoor4735]

you have very nice handwriting.

[@Its_shubhamaws]

Right

[@sarojinisahu6654]

Sir which crystal structure has greater strength and hardness- single crystal structure or polycrystalline structure? If polycrystalline structure has greater strength then why turbine blade are preferred to be made single crystalline structure?

[@introductiontomaterialsscience]

At low tempeartures grain boundaries contribute to strength as they impede the dislocation motion. So fine grains having more grain boundaries are preferred. At high tempeartures the grain boundaries actually assist the deformation through grain boundary diffusion and grain boundary sliding. So for high tempearture applications, say turbine blades, coarse grains are better. Single crystals the best.

[@binance941]

Great job sir. Hats off!!!

[@vidyvlog5249]

Thank u sir, its so help ful,,,

[@yigitcan824]

Hi professor, I have a question here. Why doesn't _interstitial effect_ exist for anions but just for cations?

[@introductiontomaterialsscience]

Cations are small, so can be easily accommodated in the interstitials.

[@magicianssciencelabandindu606]

Thank you ❤

[@Motivationalkahaniya123]

Thank you so much Sir 😊

[@AnanyaShukla89]

Thanku sir ❤️🙏

[@ibrahimnazemqader9153]

Thanks sir دەستت خۆش بێت

[@sexychantu5066]

LOTS OF LOVE FROM IIT ROORKEE SIRJI!! THANKS AND REGARDS SEXY CHANTU

[@bangthien6410]

Thanks sir

[@bestcakesdesign]

Is there any chance of using machine learning in material science?

[@introductiontomaterialsscience]

It is being used by many. Just google.

[@princexxfiddu6557]

Nice explanation but so slow

[@ashokchoudhary5519]

Tnx sir

[@GauravGupta-pb8mk]

Thank you sir

[@emirbfitness]

goat

[@brahmpreetsingh1939]

so boring