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

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

Why does martensite transformation in ordered structure (Super lattice) occur easier than disordered structure, for example in ordered Fe-Pt structure (ΔH austenite to martensite = 340 and ΔG=17...

31 December 2015 2,415 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 6,729 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 4,490 1 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 3,866 20 View

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

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

11 December 2013 1,984 0 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 782 3 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 3,121 18 View

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

11 December 2013 5,046 2 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 5,695 1 View

Why do materials have 14 crystallographic lattice?

Each atom, for it to be stable, needs to more atomic bonding and coordination number illustrate the number of atomic bonding. Maximum coordination number is owned Fcc and hcp lattice. According to...

10 November 2013 268 60 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

Who of all of you will help TPEOM to re-originate the Earths atmosphere to it original 5 atmospheric elements/gases?

Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...

06 August 2024 8,716 0 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View

Nor Dalila Abd Rahman

FESEM, Raman, TGA, HR-Tem

Arun Karthick

for basis studies: Raman, AFM & UV-Vis

for Structural analysis: SEM, FE-SEM & TEM

Jana Tittmann-Otto

You should have access to many different laser lines for Raman! One doesn't make much sense. For SWCNT PL is good but it also depends on the dispersing agent you're using.