Phase diagrams: Introduction

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  • เผยแพร่เมื่อ 23 ม.ค. 2025

ความคิดเห็น • 142

  • @avinashchaudhary9658
    @avinashchaudhary9658 4 ปีที่แล้ว +135

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

    • @abrarahmadansari8813
      @abrarahmadansari8813 4 ปีที่แล้ว +3

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

  • @JobayerJisan
    @JobayerJisan 3 ปีที่แล้ว +5

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

  • @nitinkotnala5538
    @nitinkotnala5538 3 ปีที่แล้ว +9

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

  • @vijaydeshpande6348
    @vijaydeshpande6348 4 ปีที่แล้ว +38

    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
    @justafriendlyegyptian4019 ปีที่แล้ว +4

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

  • @ItsPouring
    @ItsPouring 3 ปีที่แล้ว +6

    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! 📚🌼

  • @usaamarafiq
    @usaamarafiq 3 ปีที่แล้ว +42

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

    • @_parthopal
      @_parthopal ปีที่แล้ว +7

      I am preparing 2 hours before my exam😢

    • @Bharat_Kumar_o1
      @Bharat_Kumar_o1 ปีที่แล้ว +7

      It's slow in even 2x

    • @rajkale69
      @rajkale69 ปีที่แล้ว +1

      8 hrs before😊

    • @Me__-qn6ww
      @Me__-qn6ww 4 หลายเดือนก่อน

      same here bro paper tomorrow 24/09/24

  • @globulidoktor1733
    @globulidoktor1733 7 หลายเดือนก่อน +1

    truly a gem for any materials science student

  • @engineernitish
    @engineernitish 4 ปีที่แล้ว +4

    Fantastic sir, thanks for sharing your valuable knowledge to us

  • @GATEWaytoESE
    @GATEWaytoESE 3 ปีที่แล้ว +3

    #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
    @EL-vu9tj 5 ปีที่แล้ว +2

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

  • @gorleganesh494
    @gorleganesh494 6 ปีที่แล้ว +6

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

  • @Rajaku57mf
    @Rajaku57mf 5 ปีที่แล้ว +3

    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
      @nicolegiacca 2 ปีที่แล้ว +1

      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.

  • @helloworld12321
    @helloworld12321 2 ปีที่แล้ว +2

    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.

  • @lilitv9723
    @lilitv9723 3 ปีที่แล้ว +3

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

  • @tarahman7
    @tarahman7 5 ปีที่แล้ว +3

    Wow sir your explanation is amazing...😍

  • @naveenvaitheeswaran8537
    @naveenvaitheeswaran8537 3 ปีที่แล้ว +2

    Really your a gem of a person sir

  • @atharvavaidya1433
    @atharvavaidya1433 2 ปีที่แล้ว +1

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

  • @sjrgaming151
    @sjrgaming151 2 ปีที่แล้ว

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

  • @gregagingu7229
    @gregagingu7229 ปีที่แล้ว

    You make complicated things become so easy.

  • @armaneyy
    @armaneyy 4 ปีที่แล้ว +1

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

  • @hemanthkumarkandula563
    @hemanthkumarkandula563 5 ปีที่แล้ว +1

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

  • @OmarioKing_15
    @OmarioKing_15 4 ปีที่แล้ว +2

    The most thorough explanation on the net.

    • @prasanna4418
      @prasanna4418 4 ปีที่แล้ว

      Bro has he completed material science for all competitive exams?

  • @Rajaku57mf
    @Rajaku57mf 5 ปีที่แล้ว +1

    best video to understand phase diagram.thank you.

  • @spurthichadharam9144
    @spurthichadharam9144 3 ปีที่แล้ว +2

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

  • @Albert_11
    @Albert_11 ปีที่แล้ว +1

    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.

  • @akankshaparmar3996
    @akankshaparmar3996 4 ปีที่แล้ว +1

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

  • @dheerajsoni7363
    @dheerajsoni7363 6 ปีที่แล้ว +3

    Best explanation sir
    Thank you so much

  • @y66nick
    @y66nick 3 ปีที่แล้ว +1

    great video very informative but easy to understand thank you !

  • @swethabj9819
    @swethabj9819 4 ปีที่แล้ว

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

  • @damienhanley3525
    @damienhanley3525 4 ปีที่แล้ว +1

    Fantastic resource. Thank you

  • @senthilkumar.m2430
    @senthilkumar.m2430 4 ปีที่แล้ว

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

  • @aniketniranjanmishra6914
    @aniketniranjanmishra6914 6 ปีที่แล้ว +1

    Very helpful sir, keep making more of such course materials

    • @aniketniranjanmishra6914
      @aniketniranjanmishra6914 6 ปีที่แล้ว +1

      @@UtkarshSingh-sp9op TH-cam please block this offensive user

    • @nishantnaman3891
      @nishantnaman3891 6 ปีที่แล้ว +1

      @@aniketniranjanmishra6914
      😁😁😁

    • @johnrebeiro1066
      @johnrebeiro1066 5 ปีที่แล้ว

      why not fine materials instead of course material :p

  • @pr10510
    @pr10510 4 ปีที่แล้ว +4

    I started loving material science.

  • @vaibhav8090
    @vaibhav8090 4 ปีที่แล้ว

    Thank you sir for explaining with such simplicity.

  • @mohitpharal9430
    @mohitpharal9430 ปีที่แล้ว

    Tremendous knowledge sir 🙏🙏🙏🙏🙏

  • @Mrn0
    @Mrn0 6 หลายเดือนก่อน +2

    Greetings from Iraq ☢️

  • @jageshvarpal
    @jageshvarpal 5 ปีที่แล้ว +1

    Superb explanation sir

  • @dhairyajoshi3370
    @dhairyajoshi3370 4 ปีที่แล้ว

    very very superb explanation sir !!

  • @joser5141
    @joser5141 ปีที่แล้ว

    Amazing explanatuon, thanks you

  • @3nadh3llings74
    @3nadh3llings74 5 ปีที่แล้ว +1

    Super explanation on this topic

  • @asthashah13
    @asthashah13 ปีที่แล้ว

    You are amazing sir❤

  • @riyazveersingh8330
    @riyazveersingh8330 5 ปีที่แล้ว +1

    amazing explanation thankyou sir

  • @mamidisssnmsatwick3982
    @mamidisssnmsatwick3982 4 ปีที่แล้ว

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

  • @swapnildahake1389
    @swapnildahake1389 ปีที่แล้ว

    Very nicely explained

  • @siddhimadkaikar1755
    @siddhimadkaikar1755 3 ปีที่แล้ว

    So well explained, thanks sir

  • @paulocesarborges2978
    @paulocesarborges2978 4 ปีที่แล้ว

    Wonderful lectures. Thanks Sir

  • @joelnamabwaza3896
    @joelnamabwaza3896 ปีที่แล้ว

    you are unique sir😍

  • @jagadeeshb5510
    @jagadeeshb5510 4 ปีที่แล้ว

    Thanks for your kind information......

  • @codebits4461
    @codebits4461 3 ปีที่แล้ว

    Amazing 🌟

  • @ABH656
    @ABH656 3 ปีที่แล้ว

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

  • @balachandranpalaniappan7471
    @balachandranpalaniappan7471 3 ปีที่แล้ว

    Beautifully explained.

  • @gangadharsatyanaga
    @gangadharsatyanaga 5 ปีที่แล้ว +1

    Good explanation 🥰🥰

  • @nickosborne5822
    @nickosborne5822 4 ปีที่แล้ว

    Great video - thank you!

  • @mandhalasaketh9833
    @mandhalasaketh9833 4 ปีที่แล้ว

    Excellent teaching......

  • @edeline270
    @edeline270 4 ปีที่แล้ว +1

    king of engineering !!

  • @mwansachikonde4193
    @mwansachikonde4193 3 ปีที่แล้ว +1

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

  • @Sanjiv_Kr.
    @Sanjiv_Kr. ปีที่แล้ว

    great explanation

  • @MohammedNoorani-wi1vt
    @MohammedNoorani-wi1vt 2 ปีที่แล้ว

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

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  2 ปีที่แล้ว +1

      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.

  • @AbdulShakoor-ni9wo
    @AbdulShakoor-ni9wo 4 ปีที่แล้ว

    Plz suggest any best book for material science concepts.

  • @gummidinidesh1372
    @gummidinidesh1372 4 ปีที่แล้ว +1

    Hand writing 🔥🔥

  • @anshammohamed355
    @anshammohamed355 5 ปีที่แล้ว

    Best explanation ever

  • @adiboyinavaraprasad4103
    @adiboyinavaraprasad4103 4 ปีที่แล้ว

    Best explanation sir

  • @saumyakesharwani5949
    @saumyakesharwani5949 ปีที่แล้ว

    Thank thanku so much for this video

  • @akshatgupta1658
    @akshatgupta1658 4 ปีที่แล้ว

    Are these written notes available somewhere in form of slides?

  • @abhijeetkumar1042
    @abhijeetkumar1042 ปีที่แล้ว

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

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  ปีที่แล้ว

      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.

  • @gopalcse1
    @gopalcse1 5 ปีที่แล้ว

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

  • @abhiseknayak6063
    @abhiseknayak6063 3 ปีที่แล้ว

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

  • @15-manikkamv56
    @15-manikkamv56 4 ปีที่แล้ว

    Sir ,what is supercolling?

  • @omkarpotfode
    @omkarpotfode 4 ปีที่แล้ว +1

    Is this a btech lecture for mechanical engeenering

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  4 ปีที่แล้ว

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

  • @sanskarkumar6484
    @sanskarkumar6484 4 ปีที่แล้ว

    Thanks Sir ❤👍✌

  • @vikasraj9451
    @vikasraj9451 3 ปีที่แล้ว +7

    Best with playback speed=1.5*

  • @ujjwalasingh7925
    @ujjwalasingh7925 4 ปีที่แล้ว

    What is beta and gamma phase?

  • @walidsaleh5860
    @walidsaleh5860 4 ปีที่แล้ว +1

    I owe you my life

  • @prakharbhalla9461
    @prakharbhalla9461 3 ปีที่แล้ว

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

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  3 ปีที่แล้ว

      It is disordered

    • @prakharbhalla9461
      @prakharbhalla9461 3 ปีที่แล้ว

      @@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
      @rajeshprasad101 3 ปีที่แล้ว

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

    • @prakharbhalla9461
      @prakharbhalla9461 3 ปีที่แล้ว

      @@rajeshprasad101 thanks sir

  • @monemore-animations.9018
    @monemore-animations.9018 4 ปีที่แล้ว

    You are legend

  • @hamedismail5703
    @hamedismail5703 6 ปีที่แล้ว

    great explanation continue

  • @aishanazir8958
    @aishanazir8958 5 ปีที่แล้ว

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

    • @rajeshprasad101
      @rajeshprasad101 5 ปีที่แล้ว +1

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

    • @aishanazir8958
      @aishanazir8958 4 ปีที่แล้ว

      @@rajeshprasad101... thank u sit

    • @aishanazir8958
      @aishanazir8958 4 ปีที่แล้ว

      Sir

  • @bikashsahoo2063
    @bikashsahoo2063 3 ปีที่แล้ว

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

    • @rajeshprasadlectures
      @rajeshprasadlectures 3 ปีที่แล้ว

      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.

  • @ujjwalasingh7925
    @ujjwalasingh7925 4 ปีที่แล้ว

    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
      @introductiontomaterialsscience  4 ปีที่แล้ว +1

      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
      @ujjwalasingh7925 4 ปีที่แล้ว

      @@introductiontomaterialsscience Ok Sir🙏

  • @ktv648
    @ktv648 5 ปีที่แล้ว

    excellent video

  • @Thewire2468
    @Thewire2468 4 ปีที่แล้ว

    WOW thank you!!

  • @kcvikram2219
    @kcvikram2219 2 ปีที่แล้ว

    Love you sir

  • @technicalgroup6153
    @technicalgroup6153 3 ปีที่แล้ว

    Thank you Sir

  • @BC-yr6eg
    @BC-yr6eg 4 ปีที่แล้ว

    👍👍👍👍👍

  • @prabinkumardeep1916
    @prabinkumardeep1916 4 ปีที่แล้ว

    Nice sir

  • @md.amransarkerpallob2355
    @md.amransarkerpallob2355 5 ปีที่แล้ว

    Please upload video lecture on ternary phase diagram.

  • @gopalmer8304
    @gopalmer8304 6 ปีที่แล้ว +1

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

  • @sahilrajeshgajbhiye4968
    @sahilrajeshgajbhiye4968 3 ปีที่แล้ว

    ty very much sir

  • @sharmaprakash1953
    @sharmaprakash1953 ปีที่แล้ว +1

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

  • @saradaprasannasahoo968
    @saradaprasannasahoo968 5 ปีที่แล้ว

    Thank you sir

  • @sukwoobae4041
    @sukwoobae4041 6 ปีที่แล้ว

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

    • @rajeshprasad101
      @rajeshprasad101 6 ปีที่แล้ว +4

      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
      @gopalcse1 5 ปีที่แล้ว +1

      @@rajeshprasad101 Sir I gone through many NPTEL lectures.Your presentation , delivery keeping in mind targeted audience(students) and finally your response that brought you many fans like me. thank you sir I finished 75 videos of yours. And that topic wise small length videos brought more interest.

    • @staycalmandgetsuccess8743
      @staycalmandgetsuccess8743 4 ปีที่แล้ว

      @@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"😕

  • @deeptikumarroy8630
    @deeptikumarroy8630 4 ปีที่แล้ว

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

    • @mamidisssnmsatwick3982
      @mamidisssnmsatwick3982 4 ปีที่แล้ว

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

  • @Opomasve916
    @Opomasve916 4 ปีที่แล้ว

    Well

  • @luckydewangan5985
    @luckydewangan5985 3 ปีที่แล้ว

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

  • @abhishekshukla2835
    @abhishekshukla2835 11 หลายเดือนก่อน +1

    IIITian here

  • @shivasmart967
    @shivasmart967 3 ปีที่แล้ว

    tq sir

  • @ratuldevel4985
    @ratuldevel4985 4 ปีที่แล้ว

    APL102 waale kitne hai?? xD

  • @SayakSen-hg9xs
    @SayakSen-hg9xs 3 ปีที่แล้ว

    When you notice the equilibrium spelling being editted xD

  • @jeevaraj2327
    @jeevaraj2327 5 ปีที่แล้ว

    Got to see this a little late