Phase diagrams: Introduction

Phase diagrams: Introduction

[@avinashchaudhary9658]

Feel proud .... Completed my degree under his guidance.....A true gem of IITD

[@abrarahmadansari8813]

Yes bro..he is really nice teacher, explain very well.

[@vijaydeshpande6348]

Sir, how can I express my gratitude n respect towards you... Honerable sir, please accept my Namashkaram for increasing our knowledge with such a simple n excellent lectures

[@justafriendlyegyptian4019]

I am in Alexandria university Egypt and despite the distance between Egypt and india he really helped me

[@nitinkotnala5538]

After watching this, the concept of PHASE DIAGRAM is crystal clear......

[@usaamarafiq]

If you are preparing for exam one night before like me. I’ll suggest you to increase playback speed to 1.5x. 😇

[@_parthopal]

I am preparing 2 hours before my exam😢

[@Bharat_Kumar_o1]

It's slow in even 2x

[@rajkale69]

8 hrs before😊

[@JobayerJisan]

The best teacher in this area. I am doing PhD in Shanghai and my Chinese labmates also watch these videos.

[@globulidoktor1733]

truly a gem for any materials science student

[@ItsPouring]

Wow! This is an _AMAAAAAZING_ description of the phase diagram. Your calm and thorough explanation of each detail made it much more understandable for me than the wild and frenetic pace at which my physics class is ordinarily taught that usually makes my brain whirl. I was absorbing the material rather than watching it whiz by as a flurry of color, points and random lines on a chart. 😰 Thank you for taking your time to share your knowledge! You are a _blessing!_ 🌟Thank you so much! 📚🌼

[@Albert_11]

Sir, your explanation is very good throughout the video, but I would like to add a point to this, these all things are true if we assume pressure remains constant. Though in your definition of equilibrium phase diagram you gave a clue that we can see variation with pressure as well, indicating you assumed it constant in temperature and composition phase diagram.

[@introductiontomaterialsscience]

Yes, you are right. We are discussing constant pressure diagrams with P=1 atm.

[@GATEWaytoESE]

#GATEWaytoESE learned a lot from you Sir , After watching your video and by reading W.D.Callister , i started teaching material science . Thank you so much Sir

[@EL-vu9tj]

u can feel that this teacher is not just a teacher but a scientific

[@gorleganesh494]

Best explanations sir thaq u very much for guidance sir....

[@helloworld12321]

Maximum time I feel boared and sleepy by listening the lectures given by our professor But your is awesome 👌 I am laying down bed but still awake ⏰️ Sorry for bad English.

[@engineernitish]

Fantastic sir, thanks for sharing your valuable knowledge to us

[@diplomatutorial3256]

on viewing this video,now i will understand the concept behind the phase diagram(specially iron-carbon diagram).thank you for such a enlightening video

[@nicolegiacca]

in iron-carbon diagram you will not find substition, bcs. Fe and C has another structures (here have Ni and Cu both CCP structures, that why is substititon possible). In Fe and C diagram you will find interstitials - basicaly explaind: In each structure, there are free spaces, vacancies or cavities, so-called interstitials, between individual atoms and ions. If an ion or atom is placed in such a vacancy, we speak of interstitial substitution or interstitial solid solution. Electrical neutrality must also be maintained with this type of substitution.

[@lilitv9723]

i don't know what to say i can't believe i finally understood thnkuu so much

[@atharvavaidya1433]

if this man would be my professor, i'd be a scholar no joke.

[@naveenvaitheeswaran8537]

Really your a gem of a person sir

[@spurthichadharam9144]

Thank you..I think we can maintain safety warnings against sudden change of transition in phases

[@tarahman7]

Wow sir your explanation is amazing...😍

[@gregagingu7229]

You make complicated things become so easy.

[@OmarioKing_15]

The most thorough explanation on the net.

[@prasanna4418]

Bro has he completed material science for all competitive exams?

[@hemanthkumarkandula563]

Tq sir I got it yesterday in exam It helps me allot Tq so much sir

[@sjrgaming151]

Wonderful teaching experience,, I am very very thankful to you sir

[@y66nick]

great video very informative but easy to understand thank you !

[@Mrn0]

Greetings from Iraq ☢️

[@vikasraj9451]

Best with playback speed=1.5*

[@armaneyy]

Thanks this was explained in a very simple and beautiful way ❤️❤️

[@akankshaparmar3996]

What an explanation sir ! ...thank u so much 🙏

[@diplomatutorial3256]

best video to understand phase diagram.thank you.

[@dheerajsoni7363]

Best explanation sir Thank you so much

[@swapnildahake1389]

Very nicely explained

[@jageshvarpal]

Superb explanation sir

[@pr10510]

I started loving material science.

[@aniketniranjanmishra6914]

Very helpful sir, keep making more of such course materials

[@aniketniranjanmishra6914]

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[@nishantnaman3891]

@@aniketniranjanmishra6914 😁😁😁

[@johnrebeiro1066]

why not fine materials instead of course material :p

[@damienhanley3525]

Fantastic resource. Thank you

[@swethabj9819]

Thank you so much sir for grabbing these info in a clear cut way

[@Sanjiv_Kr.]

great explanation

[@joser5141]

Amazing explanatuon, thanks you

[@senthilkumar.m2430]

Very clean and super explanation sir,,,,,,👏👏👏

[@saumyakesharwani5949]

Thank thanku so much for this video

[@mohitpharal9430]

Tremendous knowledge sir 🙏🙏🙏🙏🙏

[@vaibhav8090]

Thank you sir for explaining with such simplicity.

[@3nadh3llings74]

Super explanation on this topic

[@mwansachikonde4193]

Thank you sir. What book is recommended for this course?

[@riyazveersingh8330]

amazing explanation thankyou sir

[@dhairyajoshi3370]

very very superb explanation sir !!

[@ABH656]

Itna accha koi kaise padha sakta hai....!!!!

[@gangadharsatyanaga]

Good explanation 🥰🥰

[@MohammedNoorani-wi1vt]

Cubic close packed is also termed as FCC (Face centered cubic)

[@introductiontomaterialsscience]

It is quite common to consider CCP and FCC as synonyms. However, I wish to distinguish between them. I consider FCC as one of the 14 Bravais lattices and CCP as a crystal structure with FCC as its lattice and a single atom motif located at 0,0,0. Thus CCP is only one of the structures which can be based on an FCC lattice, Other examples of structures with FCC lattice are Diamond Cubic and NaCl.

[@siddhimadkaikar1755]

So well explained, thanks sir

[@balachandranpalaniappan7471]

Beautifully explained.

[@asthashah13]

You are amazing sir❤

[@mandhalasaketh9833]

Excellent teaching......

[@codebits4461]

Amazing 🌟

[@jagadeeshb5510]

Thanks for your kind information......

[@walidsaleh5860]

I owe you my life

[@mamidisssnmsatwick3982]

Wonderful but a bit slow explanation ..so watching it in 1.25x 😉..thank you sir

[@paulocesarborges2978]

Wonderful lectures. Thanks Sir

[@abhiseknayak6063]

Sir is there any difference between phase diagram and equilibrium diagram ?

[@sharmaprakash1953]

But i suggest that this subject is not for 1 day... It requires a full time...

[@joelnamabwaza3896]

you are unique sir😍

[@abhijeetkumar1042]

Hello sir I have a doubt : Why do alloys melt over a range of temperatures?

[@introductiontomaterialsscience]

This can be explained using free-energy composition curves. I have not discussed this concept in this series, but you can check books or website.

[@gummidinidesh1372]

Hand writing 🔥🔥

[@nickosborne5822]

Great video - thank you!

[@adiboyinavaraprasad4103]

Best explanation sir

[@edeline270]

king of engineering !!

[@gopalcse1]

hi sir, can the alpha, beta phases separable in solid state. As you said mechanically separable.

[@bikashsahoo2063]

sir is there any difference between phase diagram and equilibrium diagram ?

[@rajeshprasadlectures]

No, they can be considered synonymous in most cases. But sometimes you may represent metastable phases in the diagram. Then it is not really an equilibrium diagram.

[@AbdulShakoor-ni9wo]

Plz suggest any best book for material science concepts.

[@akshatgupta1658]

Are these written notes available somewhere in form of slides?

[@omkarpotfode]

Is this a btech lecture for mechanical engeenering

[@introductiontomaterialsscience]

At our institute B.Tech students of Materials, Mechanical, Chemical, Biotechnology take this course,

[@anshammohamed355]

Best explanation ever

[@hamedismail5703]

great explanation continue

[@15-manikkamv56]

Sir ,what is supercolling?

[@md.amransarkerpallob2355]

Please upload video lecture on ternary phase diagram.

[@vikramkc2219]

Love you sir

[@ktv648]

excellent video

[@monemore-animations.9018]

You are legend

[@technicalgroup6153]

Thank you Sir

[@ujjwalasingh7925]

What is beta and gamma phase?

[@ujjwalasingh7925]

Respected Sir , I am a dental student and I have a Equilibrium phase diagram of Silver -tin system in my Dental Materials Subject. I hardly understand anything in that diagram.. kindly help me with that 🙏

[@introductiontomaterialsscience]

It appears complicated, but not more so than the Fe-C diagram discussed later in this course. The three horizontals correspond to three invariant reactions. The lowest temperature one is a eutectic and the other two are peritectic. If you complete all the videos in the phase diagram playlist it will help.

[@ujjwalasingh7925]

@@introductiontomaterialsscience Ok Sir🙏

[@sanskarkumar6484]

Thanks Sir ❤👍✌

[@deeptikumarroy8630]

Why is it significant to mention CCP structure of in both?

[@mamidisssnmsatwick3982]

So that we can say it is substitutional solid solution acc to humerothery rules

[@sahilrajeshgajbhiye4968]

ty very much sir

[@aishanazir8958]

Sir why we considered Ni presentation in this...mean why not cu?...kindly give me ans

[@rajeshprasad101]

I have taken %Ni as the concentration. You can take %Cu as well. Two are related %Cu=100-%Ni and both are correct.

[@aishanazir8958]

@@rajeshprasad101... thank u sit

[@aishanazir8958]

Sir

[@prabinkumardeep1916]

Nice sir

[@BC-yr6eg]

👍👍👍👍👍

[@Thewire2468]

WOW thank you!!

[@Opomasve916]

Well

[@prakharbhalla9461]

Sir is Cu Ni alloy a disordered solid solution or ordered solid solution?

[@introductiontomaterialsscience]

It is disordered

[@prakharbhalla9461]

@@introductiontomaterialsscience sir even for compositions such as AB, A2B or A3B also will it be disordered? Because in phase diagram we get a single phase solid CCP for all compositions. which will not be the case if it becomes ordered for compositions like A2B or A3B.

[@rajeshprasad101]

@@prakharbhalla9461 You are right. Cu-Ni alloy is disordered at all compositions.

[@prakharbhalla9461]

@@rajeshprasad101 thanks sir

[@sukwoobae4041]

As far as i know, Ni alloy is FCC, isn't it?

[@rajeshprasad101]

I am calling it Cubic Close Packed (CCP) which describes the crystal structure. CCP crystal structure is FCC lattice with one atom basis. If you call it FCC you are giving only the lattice. Basis information is missing. Often by saying FCC we assume a single atom basis. But consider NaCl which also has FCC lattice but has two atom basis and is thus not CCP.

[@gopalcse1]

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[@staycalmandgetsuccess8743]

@@rajeshprasad101 every time i understand everything and in interview i explain everything to them but i dont know why they say everytime "we are not satisfied by your answer"😕

[@gopalmer8304]

it will be very appreciated if it's was ppt presentation, by the way video was nice sir

[@saradaprasannasahoo968]

Thank you sir

[@god-gifted1816]

Thanks sir

[@shivasmart967]

tq sir

[@abhishekshukla2835]

IIITian here

[@ratuldevel4985]

APL102 waale kitne hai?? xD

[@luckydewangan5985]

Thankyou sir you are saving me from getting 0 in viva ☺️

[@jeevaraj2327]

Got to see this a little late