Hello everyone! What is the dielectric constant for solvent blend of ethylene carbonate (EC) and diethyl carbonate (DEC) ?

11 December 2017 7,066 3 View

Can someone help me in analysing this HRTEM image?

10 November 2014 8,579 1 View

What could be the reason for this kind of pattern?

Actually, the sample quantity is less for taking XRD. I don't think that is the reason for this kind of pattern. How to solve this? Is there a method to get a neat pattern?

02 March 2014 8,024 29 View

Does any one have articles which has the FT-IR spectrum of CuLaO2, CuO, AgGaO2?

Ft-ir

01 February 2014 9,034 6 View

Does anyone know how to calculate the particle sizes from band gap values which are obtained from the optical absorption studies?

I read journals but still I have some doubts. So I felt discussion would give me the better idea. ( They said EMA calculations).

01 February 2014 5,643 3 View

Is there any free software for finding out the lattice parameters of a XRD powder pattern? Could some one help me out how to calculate them?

I would like to calculate the lattice parameters of my XRD powder pattern.

31 December 2013 365 22 View

Can someone help me out with converting files in PowDLL?

I have downloaded PowDLL converter, but I could not convert files at all. I have xrd data in .uxd format and I just want to convert it to .raw format..

10 November 2013 1,485 17 View

What happens when we add surfactant to the material?

09 October 2013 388 13 View

Can someone please explain me the direct bandgap and indirect bandgap in semiconducting materials?

http://en.wikipedia.org/wiki/Direct_and_indirect_band_gaps

07 August 2013 4,810 10 View

Is there some concept like specific surface area to determine a nano material when the size of a material exceeds 100 nm s? Can someone help me out?

I have prepared a material which is having dimension less than 100 nm s. After a few days, there was an agglomeration and it formed grains and the size exceeded 100 nm s. Will that not be...

07 August 2013 7,292 12 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

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 is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View