How do I solve this numerical on Vacancy concentration?

07 August 2019 5,879 5 View

What is the physical meaning of "critical crack length"?

There are two equations that are primarily used in context of the facture stress one with sqrt(2 *gamma*E/a0) and the other with sqrt(2*gamma*E/pi*C).I do not understand which one to use while...

07 August 2019 2,471 4 View

What is the significance of h^2+k^2+l^2?

What is the significance of h^2+k^2+l^2 values in BCC and FCC?I have seen how h,k,l values are the ones which are relatable to the structure factor theorem and why all odd or all even and sum...

06 July 2019 4,508 4 View

Why are they applying the shell equation to find the desired objectives in a Stagnant Air film diffusion Problem?

I do not understand why the shell equation is being applied and most importantly there is nothing spherical here so why should the shell equation even be pondered about?Please refer to the...

06 July 2019 3,508 4 View

How are drawing common tangents to get diffusion different for concave and convex phase fields?

Whenever there is a concept of diffusion involved and we need to decipher what is going to happen we tend to draw common tangent s in the phase field diagrams and decide which direction the...

06 July 2019 9,575 1 View

What is the plastic deformation process and the related phenomena involved in FCC single crystal?

Please answer this in detail as much as possible.

06 July 2019 7,417 1 View

Does Ferrite and Austenite exist without any carbon soluble in it?

It seems that we have a perennial notion of relation Austentite and Ferrite in Fe-C phase diagram however we refer to them as gamma or alpha iron.Is having a minimal carbon content necessary for...

06 July 2019 1,298 8 View

How are the two Stacking Faults namely intrinsic(formed by vacancy agglomeration) and extrinsic(formed by interstitial agglomeration) different?

Stacking Faults and its association with partial dislocations seem to bother me day in and day out.With regard to this I do not understand how Partial dislocations lead to stacking faults and not...

06 July 2019 7,319 1 View

Why does carbon atoms occupy the octahedral void?

Why does carbon atoms occupy the octahedral void in BCC atoms even though they are smaller than the tetrahedral voids? If the reason is because of less distortion I would be very pleased to see...

06 July 2019 1,031 1 View

How do I solve such questions on paramagnetism and ferromagnetism?

The property of whether a substance is paramagnetic or antiferromagnetic is something that is bothering me.I know that for sure what the things are in terms of magnetic domains and stuff.However...

06 July 2019 2,114 1 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View