why dose Martensite transformation occur easier in ordered structure rather than disordered structure?

31 December 2015 2,357 3 View

What are driving force and activation energy for below the mechanism in high temperatures?

1- Diffusion 2- Corrosion 3- decrease of dislocation 4- increase of vacancy 5-Phase Transformation 6- precipitation or resolved precipitation 7- Oxidation

02 March 2014 6,666 3 View

Slip systems in body centered cubic?

Show that the body-centered-cubic crystal have three families of slip systems, i.e. twelve slip systems of (110)[111]-type, twelve slip systems of (112)[111]-type and twenty four slip systems of...

31 December 2013 4,441 1 View

Why is the main criterion for nanomaterials is considered for dimensions smaller than 100 nanometers?

Seeking to find out the reasons behind this observation.

11 December 2013 719 3 View

No title

What is the number of carbon atoms in the (0, 3) unit cell of carbon nano tubes?

11 December 2013 1,885 0 View

How can I calculate the surface of nanoparticles?

How can I calculate the surface of nanoparticles? For example: how much is surface of 100 grams gold nano-particle with size of 20 nm? Or how much is surface of 100 grams gold micro-particle with...

11 December 2013 3,777 20 View

What is the natural color of objects related?

What is the natural color of objects related? All materials with change in dimensions (nano size) have changed color?

11 December 2013 5,638 1 View

Why with a decrease in grain size (nanometric size), the width of the X-ray diffraction of them increases?

Seeking to understand this relationship.

11 December 2013 3,047 18 View

How is XRD diffraction pattern of graphene, single-walled carbon nanotubes, and multi-walled carbon nanotube?

How is XRD diffraction pattern of graphene, single-walled carbon nanotubes, and multi-walled carbon nanotube?

11 December 2013 4,949 2 View

which devices we need for establish a laboratory for characterization of carbon nanotubes?

which devices we need for establish a laboratory for characterization of carbon nanotubes?

11 December 2013 8,500 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 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

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

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View