What is Stacking Fault Energy (SFE) of a lattice structure?
Answer: SFE is the difference in lattice energy between a faulty (stacking) structure (F) and a perfect structure of the same metal (P).
SFE = F - P.
What is ?
Monday, 13 June 2016
Thursday, 19 May 2016
What is overpotential?
What is overpotential in Electrochemistry? What is overpotential in Electrocrystallization?
Answer: Every pair of electrodes have a threshold potential to be activated, that is, to start the reactions. The overpotential is the extra potential applied on top of the threshold potential. So, the applied potential is always bigger than the overpotential.
Overpotential is usually important for the reactions' thermodynamics as this is the amount of potential reactions really affected.
Answer: Every pair of electrodes have a threshold potential to be activated, that is, to start the reactions. The overpotential is the extra potential applied on top of the threshold potential. So, the applied potential is always bigger than the overpotential.
Overpotential is usually important for the reactions' thermodynamics as this is the amount of potential reactions really affected.
Wednesday, 13 April 2016
What is Scmidt Number?
Schmidt number is a dimentionless number. It is the ratio of Viscosity and Mass Diffusivity. In other words, Schmidt number denotes how many times higher the value of the Momentum diffusivity from Mass diffusivity.
What is Karman Number?
What is Von Karman Number in Fluid Mechanics?
Answer: Von Karman Number is the result of the multiplication of Reynolds Number and square root of Friction Factor.
Answer: Von Karman Number is the result of the multiplication of Reynolds Number and square root of Friction Factor.
Sunday, 22 November 2015
What is Peer Reviewed Article?
A article which has been evaluated by the personnel working or involving in the same field. A peer reviewed article is always expected to be authentic and of high standard.
Reference:
http://www.senseaboutscience.org/pages/peer-review.html
Reference:
http://www.senseaboutscience.org/pages/peer-review.html
Tuesday, 10 November 2015
What is Real Fluid?
The fluid which exhibits viscous effect is called Real Fluid. Real fluid follows 'No slip' policy while flowing. These fluids have shear stress within their body.
References: http://www.efm.leeds.ac.uk/CIVE/CIVE1400/Section4/laminar_turbulent.htm
References: http://www.efm.leeds.ac.uk/CIVE/CIVE1400/Section4/laminar_turbulent.htm
Wednesday, 28 October 2015
What is Patination?
The process in which a piece of metal develops it's metal oxide coating intentionally or naturally is called Patination. The oxide layer is usually termed as Patina.
References: http://www.pbs.org/wgbh/roadshow/fts/lasvegas_200706A35.html
References: http://www.pbs.org/wgbh/roadshow/fts/lasvegas_200706A35.html
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