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

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

Why does the strength of Ni3Al compound increase with increasing temperature?

We know that the strength of materials decreases with increasing temperature. Why unlike the other materials does the strength of Ni3Al compound increase with increasing temperature?

10 November 2013 2,628 3 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

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

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View