Peter Davies

18:54

Phase Transformations and TTT Diagrams in Materials Science (Part 2: S-Curves and TTT Diagrams)

4 сағат бұрын

18:54

Phase Transformations and TTT Diagrams in Materials Science (Part 1: Nucleation & Growth; Rates)

4 сағат бұрын

21:07

Crystal Chemistry of Ionic Materials (Part 2: Polyhedral Models)

2 жыл бұрын

14:03

Crystal Chemistry of Ionic Materials (Part 1: Cation Sites in Close Packed Structures)

2 жыл бұрын

21:22

Crystal Chemistry of Ionic Materials (Part 3: Perovskite: Cation-Anion Close Packing)

2 жыл бұрын

17:05

Bonding: Atomic Orbital Overlap and Molecular Orbitals (Part 2: Factors Affecting Orbital Overlap)

2 жыл бұрын

11:42

Bonding: Atomic Orbital Overlap and Molecular Orbitals (Part 1: Overview of MO Formation)

2 жыл бұрын

29:24

Tutorials in Materials Science: Bond Energy and Crystal Energy

2 жыл бұрын

15:02

Electronic Structure of the Atom: (Part 4: Electron Energy States, Periodic Trends)

2 жыл бұрын

10:05

Electronic Structure of the Atom: (Part 3: Angular Nodes, Boundary Surface Diagrams)

2 жыл бұрын

13:19

Electronic Structure of the Atom: (Part 2: Visualizing Orbitals; Radial Nodes)

2 жыл бұрын

12:00

Electronic Structure of the Atom: (Part 1: Quantum Numbers, Wavefunctions, Orbitals)

2 жыл бұрын

16:10

Fe-C Steels: (Part 2: The Formation of Martensite, Shape Memory Alloys)

3 жыл бұрын

12:30

Fe-C Steels: (Part 1: Why is Carbon Unstable in the BCC Form of Iron?)

3 жыл бұрын

20:16

Grain Boundaries in Materials (Low Angle Boundaries, Coincidence Site Lattices)

3 жыл бұрын

32:49

Reading Ternary Phase Diagrams in Materials Science (Part 5: Complex Systems, MgO-Al2O3-SiO2)

3 жыл бұрын

26:51

Reading Ternary Phase Diagrams in Materials Science (Part 4: Intermediate Compounds)

3 жыл бұрын

25:59

Reading Ternary Phase Diagrams in Materials Science (Part 3: Melting, 4-phases, Invariant Reactions)

3 жыл бұрын

29:58

Reading Ternary Phase Diagrams in Materials Science (Part 2: 2 & 3 Phase Solid-Liquid equilibria)

3 жыл бұрын

29:17

Reading Ternary Phase Diagrams in Materials Science (Part 1: Overview; all solid equilibria)

3 жыл бұрын

14:35

Think like a Materials Engineer (The Different Length Scales of Structure in Materials Science)

3 жыл бұрын

12:24

Orbitals and Electronic Band Structures (Part 8, 3D Band Diagrams: Direct and Indirect Band Gaps)

3 жыл бұрын

15:45

Orbitals and Electronic Band Structures (Part 7, 2D Crystal Orbitals: p bands, final band diagram)

3 жыл бұрын

16:39

Orbitals and Electronic Band Structures (Part 6, 2D Crystal Orbitals: the s Band)

3 жыл бұрын

13:25

Orbitals and Electronic Band Structures (Part 5, p Orbital Bands in a 1D System)

3 жыл бұрын

8:36

Orbitals and Electronic Band Structures (Part 4, Polyenes Revisited: k Vectors for MO’s)

3 жыл бұрын

7:16

Orbitals and Electronic Band Structures (Part 3, s Orbital Bands in a 1D System)

3 жыл бұрын

16:49

Orbitals and Electronic Band Structures (Part 2, Crystal Orbitals and the k-vector)

3 жыл бұрын

15:25

Orbitals and Electronic Band Structures (Part 1: Molecular Orbitals in Polyenes, Bands in Metals)

3 жыл бұрын

Пікірлер

@edwardomondi9613 Ай бұрын

Thank you very much for these 2 videos! Very helpful and visual

@peterdavies6179 Ай бұрын

Glad they helped!

@rachidmoustabchir4478 Ай бұрын

Dear Professor Peter Davies ! I would like to thank you so much for this precious and unique course. Chapeau Professor ! Now I got the big picture about band structures and the relation with high symmetry points. I am wandering Professor are these trainings related to some university program? If it is the case could you please share with me the link of the course, or a link where I can download these presentations. Thanks again Professor.

@peterdavies6179 Ай бұрын

Thank you for your comments, I'm delighted this helped you. These videos are not associated with a university program, just my own contributions in an effort to help improve understanding for anyone who is interested.

@maleck25 Ай бұрын

Hi, dear Altruist, would it be possible for you to create a series of videos explaining TTT diagrams? Your videos are exceptionally well-made! The slides you prepare are not only packed with valuable technical insights but are also visually stunning. Your materials science content is undoubtedly among the very best on KZbin!

@peterdavies6179 Ай бұрын

Thank you for your kind comment; I will put TTT diagrams as a top priority for my next set of videos.

@peterdavies6179 2 күн бұрын

I wanted to let you know your comment spurred me to make a series of videos on TTT diagrams and Phase Transformations; i just uploaded them (3 parts) today; I hope you'll like them: part 1, kzbin.info/www/bejne/pIDHk3iKZ7-Alas ; part 2 kzbin.info/www/bejne/e5i4Y3uOp69goqc ; part 3, kzbin.info/www/bejne/joalYqqfgMuVi80

@DamianGeorgel-Cristian 2 ай бұрын

Outstanding

@peterdavies6179 2 ай бұрын

Thank you!

@nirajchawake 2 ай бұрын

This is the best video I've seen on CSL, and the explanation is outstanding.

@peterdavies6179 2 ай бұрын

Thank you!

@TerenceFisher-w2h 2 ай бұрын

underrated video. Still have a lot to understand but this is one of the better videos I found on the subject

@hazy-l7x 3 ай бұрын

Very well explained sir

@peterdavies6179 3 ай бұрын

Thank you!

@mimithebantu 3 ай бұрын

God will bless you on my behalf sir.

@peterdavies6179 3 ай бұрын

Thank you

@sanjeevinamdar5750 4 ай бұрын

Hello Peter, Your videos are simply great. Can you please arrange them in a sequence in a PlayList.

@peterdavies6179 4 ай бұрын

Thank you for the comment and the suggestion; I will work on creating the playlists you suggested

@tt7mm 6 ай бұрын

This is a great tutorial. It helps me a lot. Thank you for sharing.

@peterdavies6179 6 ай бұрын

Thank you glad it helped

@ankitroy9283 7 ай бұрын

Hard to find such a clear explanation even at university lectures.

@peterdavies6179 7 ай бұрын

Thank you

@keremcandizdar9975 8 ай бұрын

Hi, You said that low angle boundaries orientation is below 5degree however in the next slides there is an example that shows it as 10 degree in SrTiO3

@peterdavies6179 8 ай бұрын

Yes the 5 degree quote was an approximation, you can go a little higher.

@Dr_Aj2954 9 ай бұрын

Dear Professor Davies, I am having challenge conducting an isoplethal analysis in CaO-MgO-SiO2 ternary phase system for an overall composition of 49% CaO and 15% MgO. Please can you help on this? Thank you.

@peterdavies6179 8 ай бұрын

Can you tell me more about the issue?

@Ashish-299 9 ай бұрын

Can’t be explained better than this. Thanks a lot.

@peterdavies6179 9 ай бұрын

Thank you!

@ramtrivedi9573 9 ай бұрын

Plz suggest book for this topic

@shreyaghatak7053 10 ай бұрын

This video series is really helpful. Thanks a lot

@peterdavies6179 10 ай бұрын

Thanks for the comment, glad to hear it was helpful

@kritikakhanal3658 10 ай бұрын

Thank you so much ,i needed this ❤

@nomipakistanli 11 ай бұрын

Excellent. finally someone has taken a step and made these videos and made them really simple.

@peterdavies6179 11 ай бұрын

Thank you!

@kagamer21 11 ай бұрын

Thank you so much for your help!

@peterdavies6179 11 ай бұрын

Glad it helped!

@catarinaguerra9407 11 ай бұрын

How can you tell when a binary reaction is either eutectic or peritectic?

@peterdavies6179 11 ай бұрын

Identify the solid phases and liquid involved; if the liquid composition is in between the solids it is a eutectic; if the liquid is outside both of the solid phases, it is a peritectic. Hope this makes sense.

@Younas4286 Жыл бұрын

Thank you Professor Davies, this is one of the best lectures i have ever heard.

@peterdavies6179 Жыл бұрын

Thank you so much

@Cinder83 Жыл бұрын

I watched the entire 8 episodes twice. The narration is graphic and logical, and helped me figure out where I could bring the charts from. Thank you for the sharing!

@peterdavies6179 Жыл бұрын

Thanks for the comment; I'm glad they were useful

@Chao-q5v Жыл бұрын

Thank you, sir

@hopefullysoonaweldingengineer Жыл бұрын

Hello Prof. Thank you for those advanced material science topics. Very informative. Best wishes.

@peterdavies6179 Жыл бұрын

Thank you for your comment, I'm glad you enjoyed the videos

@karemlutf3750 Жыл бұрын

This was really helpful 🤍

@peterdavies6179 Жыл бұрын

Happy to hear it helped

@swahid2010 Жыл бұрын

Thank you professor.

@sanguine627 Жыл бұрын

teacher which app did you use to draw these 🫶🫶 ty for your explaination

@peterdavies6179 Жыл бұрын

These are all powerpoints

@wenyuhou5017 Жыл бұрын

Very helpful. Thank you so much for making the video.

@peterdavies6179 Жыл бұрын

You are welcome, glad you enjoyed it

@JessieAllen-r6m Жыл бұрын

Impressive explanation.

@peterdavies6179 Жыл бұрын

Thank you!

@rohit_rao_98 Жыл бұрын

nice expelention

@peterdavies6179 Жыл бұрын

Thank you!

@85481 Жыл бұрын

Excellent. I worried going in that I was too rusty on binary phase diagrams but your explanation is so clear that I didn't have any issues at all.

@peterdavies6179 Жыл бұрын

Glad you enjoyed it!

@easyvic1803 Жыл бұрын

i should go back and start from the 1st part. I really wished you picked a different composition on the pure MgO field

@peterdavies6179 Жыл бұрын

Thanks for the comment; if you do go back to the earlier videos hopefully you can select a composition near MgO and deduce the path (the primary phase will be MgO). I think you’ll find the paths are more straightforward than the other ones in this video as the only ternary invariant reaction that could be involved is the 1710C ternary eutectic where: L -> MgO + 2MgO.SiO2 + MgO.Al2O3 Let me know if you have any questions

@easyvic1803 Жыл бұрын

Thank you very much for the explanation. The video makes very sense. I am able to understand watching but finding a little difficult reading and working problems. Can you please help me with invariant reaction in 1453,. also finding a composition of 40 Sio2, 15% Al2O3, i know the first solid to crystallize will be fosterite, and the second solid to crystallize is spinel. But i have a question, what will be the composition at when spinel starts to crystallize. and the amount of phase presents. Also what will be the solidification pathway and where the solidification ends, with the 40%Sio2 and 15%Al2O3 .i will be glad if you can help me with this 2 problems.

@balaacharya3941 Жыл бұрын

sir rotation axis 111, 001, 110 ? what doe it means

@peterdavies6179 Жыл бұрын

This is the direction perpendicular to the view on the slide; the grain is rotated around that direction (axis)

@amribrahim7850 Жыл бұрын

Very good explanation. Thank you.

@chaitanyananhore9969 Жыл бұрын

Hello sir Is those space diagrams applied for ortho meta para nitro toluenes?

@peterdavies6179 Жыл бұрын

I'm not sure what information you are looking to learn for those systems; could you clarify?

@chaitanyananhore9969 Жыл бұрын

@@peterdavies6179 ternary diagram for isomers of nitro toluenes

@peterdavies6179 Жыл бұрын

@@chaitanyananhore9969 I think you will find these are not applicable to their mixing

@ichu163 Жыл бұрын

Excellent tutorial. Thank you

@peterdavies6179 Жыл бұрын

Glad you enjoyed it!

@avinashbharti4946 Жыл бұрын

14:37 , sir can you tell me which compounds are incongruent mealting compound

@peterdavies6179 Жыл бұрын

Sure, A2B and AB2 melt incongruently as they yield a solid and liquid with different compositions when they melt. AB melts congruently and forms eutectics with A2B and AB2 (pure A and our B also melt congruently). Hope this makes sense.

@kudakwashehove-db2ww Жыл бұрын

Well explained

@peterdavies6179 Жыл бұрын

Thank You!

@r.w178 2 жыл бұрын

I searched a lot for a explanation how to get from orbitals to bands. Thank you a lot!

@peterdavies6179 2 жыл бұрын

Happy to help!

@간달프-h2d 2 жыл бұрын

I really enjoyed the orbitals and electronic band structures series videos! It was much more helpful than my whole semester of solid state physics. Thank you sir!

@peterdavies6179 2 жыл бұрын

Glad it was helpful!

@간달프-h2d 2 жыл бұрын

Great video! It helped me a lot in understanding the diagrams. I have a question about solid solubility. At 19:22 from the Si, Mo, Re diagram, can we say that the green point is a solid solution of MoSi2/Mo3Si2/ReSi?

@peterdavies6179 2 жыл бұрын

The green point composition is a 3-phase mixture of MoSi2 + Mo3Si2 + ReSi. We would not say it is a "solid solution" of these three as that would imply they are soluble with each other when they are not. So a sample of this composition is inhomogeneous with regions of each of these 3 different phases; if they were soluble (a solid solution) it would be completely homogeneous in composition and structure. The relative amounts of the 3 phases that are present can be calculated from the tie-triangle.