Eutectic system

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  • Опубліковано 30 жов 2024

КОМЕНТАРІ • 61

  • @ابوعثمان-ع2ه
    @ابوعثمان-ع2ه 6 років тому +29

    you teaching is extremely helpful as you are explaining things slowly and simply

  • @afiqsafwan4714
    @afiqsafwan4714 6 років тому +10

    OMG.....thank you so much for making me finally understand this. I will be recommending this to my friends if they have any problem with eutectic system.

  • @njghtcrawler7899
    @njghtcrawler7899 6 років тому +6

    Very helpful video. Thank you for the clear handwriting and the different colors are a nice touch.

  • @ahmedreshi5697
    @ahmedreshi5697 Рік тому +5

    My Chinese, barely any English speaking lecturer explained this whole playlist in one 40 min lecture... AND he's teaching at one of the biggest UK universities, which Im paying way too much for. This is how you teach. FREE. on UA-cam.

  • @jahidhassan9344
    @jahidhassan9344 2 роки тому +1

    I am from Bangladesh.. Glad to learning from you Sir💚

  • @zaidpatel7312
    @zaidpatel7312 5 років тому +4

    Extremely helpful lecture.
    Thank you so much!

  • @shamikumar3474
    @shamikumar3474 5 років тому +2

    You r magic sir...
    Love u ...
    Hope I could meet u...
    Thanks for explanation

  • @umararshad481
    @umararshad481 11 місяців тому

    You are amzing sir, I didn't find explanation like this, thank you so much sir.

  • @TrainPlaneBoat
    @TrainPlaneBoat 3 роки тому

    Thank you from Canada!! Very well explained I appreciate it

  • @azadarhussain301
    @azadarhussain301 6 місяців тому

    Thank you so much Sir❤ you made it easy 😊

  • @olusolapelumi6660
    @olusolapelumi6660 Рік тому +2

    I wish I could make donations to support sir 🙏

  • @anuragdatta3403
    @anuragdatta3403 4 роки тому +4

    Sir, can a reverse graph exist (with x axis being wt% of Pb)? Does the graph strictly have to be in this format?

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  4 роки тому +6

      That is possible. Whether you draw the diagram with wt%Sn or Wt%Pb as your composition axis is your choice.

  • @Rajesh-yx2wl
    @Rajesh-yx2wl 2 роки тому

    Thank you sir, nice explanation

  • @parthaaec07
    @parthaaec07 Рік тому

    Excellent teaching 👏

  • @335_mdfaizan6
    @335_mdfaizan6 2 роки тому

    Fabulous😋✨

  • @rockinzzzup97
    @rockinzzzup97 4 роки тому +1

    very nicely explained. thanks

  • @KingKong-tt1wq
    @KingKong-tt1wq Рік тому

    thankyou sir really very useful

  • @TamilArasan-hb9gm
    @TamilArasan-hb9gm 3 роки тому

    Very nice explained

  • @anandhanagarajan9995
    @anandhanagarajan9995 4 місяці тому +1

    No one in the world they never teach like you

  • @raghavadutt1483
    @raghavadutt1483 4 роки тому +1

    Sir, why the Eutectic horizontal line is not called as isomorphous line? ( as this line even defines at one temperature at 183 C ).

    • @rajeshprasad101
      @rajeshprasad101 4 роки тому +3

      It is an isothermal line. Since the line is associated with the eutectic reaction it is called a eutectic horizontal. We could have called it 'eutectic isothermal', but it is not standard.

    • @raghavadutt1483
      @raghavadutt1483 4 роки тому

      Thank you ,sir.

  • @d_gamer_r
    @d_gamer_r 2 роки тому

    made it look very easy...

  • @kaviyakaviya8830
    @kaviyakaviya8830 3 роки тому

    Nice hand writing sir

  • @सागरबड़थ्वाल
    @सागरबड़थ्वाल 11 місяців тому +1

    gyanganga

  • @monishreddy1797
    @monishreddy1797 4 роки тому +1

    Sir Is 100% soluility possible in Sn + Pb.. is it possible to draw phase diagrams if the components are not 100% soluble

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  4 роки тому +1

      One requirement of 100% solubility in a solid state is that the two elements should have the crystal structure. This is not satisfied in this case as Pb is based on FCC lattice whereas Sn is based on BCT lattice. The phase diagram is still possible. The solvus lines will show limited solubility.

  • @kartiknk4917
    @kartiknk4917 6 років тому +1

    Is there liquidus and solidus curve occur change only by 62% eutectic composition? What happens when we use other %?

    • @CantizeSay
      @CantizeSay 9 місяців тому

      No, there's a liquidus-solidus curve change at different composition. Example at 50% eutectic composition which affects the eutectic temperature which may drop

  • @kartiknk4917
    @kartiknk4917 6 років тому

    Sir, why liquidus and solidus curve get change?...... We have only alloy of sn and pb so, why two solid occur by solidify?

  • @madhuyadav4992
    @madhuyadav4992 5 років тому

    Thanks sir for helpful videos

  • @rohitpardeshi1907
    @rohitpardeshi1907 5 років тому +1

    Sir, please explain us why Pb-Sn alloy shows different phase diagram?Why there occurs a different alpha n beta solids?

    • @annisahayyaarundati25
      @annisahayyaarundati25 Рік тому

      because Pb and Sn have different crystal structure. Different crystal structure didn't allow complete solid solution. So, both alpha and beta has solubility limit represent as the solvus line. Isomorphous diagram, like we see from Cu-Sn, is only for components with same crystal structure, so there's complete solid solution.

  • @zaidansari3728
    @zaidansari3728 2 роки тому

    It is type 2 or type 3 diagram l...?

  • @manishjena9649
    @manishjena9649 4 роки тому

    Sir which engineering chemistry book should I refer as there are lots of books giving their own definition of eutectic system.

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  4 роки тому

      In fact, there is no confusion regarding the definition of the eutectic. The definition given here is correct. If you have come across an alternative definition please let me know.

  • @johnwilliamsgt
    @johnwilliamsgt 5 років тому

    Will there be a eutectic point in an isomorphous system. Just to clarify

    • @rajeshprasad101
      @rajeshprasad101 5 років тому +3

      No, isomorphous system does not have any invariant reaction.

  • @vishaln8598
    @vishaln8598 11 місяців тому

    thankyou so much sir

  • @nadimk9952
    @nadimk9952 5 років тому +1

    Sir how can seprate pb from sn by chemical method

  • @harikrishnan3112
    @harikrishnan3112 4 роки тому

    Hi sir. What is the difference between alfa and beta alloy. If alfa is of one crystal structure and beta is of different crystal structure how can both alfa and beta exist as a single crystal. what is the actual difference between alfa and beta sir??
    Surface defects - Can we say that alfa and beta in lead tin eutectic alloy at low temperature forms a heterogeneous surface defect. assuming alfa is of one crystal structure and beta is of different crystal structure?

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  4 роки тому +1

      Alpha and beta have different crystal structures and different compositions. In sample both can be present but they occupy different volume elements of the sample. They meet at a surface which we call the the apha/beta phase boundary.

    • @harikrishnan3112
      @harikrishnan3112 4 роки тому +1

      @@introductiontomaterialsscience Thank you sir. Since this is a substitutonal solid solution of 100% solubility how can we have different crystal structure. if it is a interstitial solid solution like we can have two different solid structure like alfa + Fe3C in Iron carbon diagram.

  • @clearheartboy777
    @clearheartboy777 2 роки тому

    sir why you didn't explain what is solvus line?

  • @sanskarkumar6484
    @sanskarkumar6484 4 роки тому

    Thanks Sir ❤✌

  • @priyanshubariar3317
    @priyanshubariar3317 3 роки тому

    Isn't eutectic horizontal also a solidus line?

    • @rajeshprasadlectures
      @rajeshprasadlectures 3 роки тому

      No. By definition, a solidus line separates a single phase solid region from a two phase solid+liquid region. This is not true for the eutectic horizontal.

  • @BC-yr6eg
    @BC-yr6eg 4 роки тому

    👍👍👍👍👍👍

  • @RAHUL__07S
    @RAHUL__07S 3 роки тому

    Sir I really need theory of this topic eutectic system...can you help me 🙏🙏

  • @manojvelishala8633
    @manojvelishala8633 5 років тому

    sir why eutectic composition has lowest melting point?

    • @rajeshprasad101
      @rajeshprasad101 5 років тому +7

      Like all 'Why' questions this one is difficult to answer. We just accept the phase diagrams as experimentally determined diagrams. Of course, since they are equilibrium diagrams, they represent the phases or mixtures of phases in thermodynamic equilibrium. So one can say that we have these phases because they result in the minimum free energy of the system. But then the question remains why the particular combination of phases have minimum free energy? Difficult to answer!

    • @manojvelishala8633
      @manojvelishala8633 5 років тому

      @@rajeshprasad101 thank you sir

    • @mohitjoshi9629
      @mohitjoshi9629 3 роки тому

      @@rajeshprasad101 sir aap to shayar bhi ho 😅🙏🙏 dhanya ho gurudev 🙏🙏

  • @parthdevbundela6744
    @parthdevbundela6744 5 років тому

    Sir bita hai kya?

  • @rixz
    @rixz 2 роки тому

    🙏🥺

  • @armanhussain7369
    @armanhussain7369 6 місяців тому

    13:56

  • @CymplexSimbarrrrr
    @CymplexSimbarrrrr 2 місяці тому

    SIR ISN'T PB-SN SYSTEM A PARTIALLY EUTECTIC SYSTEM

  • @bhaskarmahanthi6868
    @bhaskarmahanthi6868 3 роки тому +1

    sir why the horizontal line is at 183 degrees

    • @introductiontomaterialsscience
      @introductiontomaterialsscience  3 роки тому +1

      I can't really answer this question. I will face the same difficulty if one asked why does Pb melts at 327 degree C.