Solid solutions II

[@rajankandhare2227]

Your teaching has a magic.. It creates intrest in material science.. You are gr8 sir

[@momin665]

Thanks sir really appreciate for your effort and simply explanation

[@cosh__x]

Sir, In substitutional solutions, where do the atoms which are replaced go?

[@MINIAWARFR]

Thanks, very helpful

[@balkrishnajha1524]

Sir the radii of Fe and C atoms are similar then how the solution is forming an interstitial solid soln nit the substitutional one?

[@peiojacob1850]

Excellent video, thanks for your help. Wish me luck for the exam.

[@introductiontomaterialsscience]

Best wishes,

[@yasserpatel3217]

Sir, can you help me. what is meant by homogenization of solid solutions? What is the relationship between solid solution and hardening of aluminum alloy material? I am in need of information about solution heat treatment on aluminum alloys.

[@pankajojha5586]

Sir why C is occupying only some of the Octahedral Voids (OHV) why not it is occupying all the OHVs. And is it really possible that C occupies all the OHVs?

[@introductiontomaterialsscience]

There is not enough carbon in steel to occupy all octahedral voids.

[@urijiron433]

Dear proveedor, what is segregation in alloys?

[@gopushaji1927]

Sir, Do the solute atoms occupy their sites(interstitial/substitution) randomly or do they follow any pattern of themselves(like forming a lattice of the solute) within the solution?

[@introductiontomaterialsscience]

Both possibilities exist. kzbin.info/www/bejne/noGokml6rMihiNU

[@BC-yr6eg]

👍👍👍👍👍

[@mr.kaustubh]

why HCP crystals examples like Cd, Zn, Mg are mostly used as solid lubricants??

[@saibharathmarkondapatnaik6008]

May be, since the atoms of HCP have longer distance between them. So, it make to slide easily.

[@udaykumarkondaveeti7698]

Sir, Why carbon atom occupy Only octa hedral voids in austenite [gama iron + carbon] why not tetra hedral voids ?

[@introductiontomaterialsscience]

Octahedral void is larger.

[@syedsohail2426]

At 10:40 Is it really HCP? (*the base is square and not hexagon) Kindly clarify

[@introductiontomaterialsscience]

This is a primitive unit cell of HCP, so the base is not a hexagon but a rhombus of angle 120 degrees.

[@eylulZZ]

Sir, In BCC Crystal, why C atoms sit on non-regular octahedral voids (which is smaller) than tetrahedral voids (which is larger)?

[@introductiontomaterialsscience]

In irregular Octahedral Void (OV) C atom has to displace only two nearest C atoms. In irregular tetrahedral void (TV) it has to displace all the four atoms. In the end, the resulting strain energy is more for than for OV. Thus OV is preferred.

[@eylulZZ]

@@introductiontomaterialsscience thank you Sir...

[@ravithakur0041]

​​@@introductiontomaterialssciencesir, from where 2 atoms came for OV and 4 atoms for TV ?

[@saicharan9174]

sir i think at 17:18 we should write solvent na?? like solute+solvent = solution but you had written maximum limit of solute in solution which is quite contracting........🤔

[@introductiontomaterialsscience]

It is the maximum limit on solute and not solvent. For solvent, it will be minimum lmit.

[@rajeshprasad101]

It is the maximum limit of solute. For solvent it would be the minimum limit.