Why elastic modulus decrease with increase in force/depth of nanoindentation?

With different forces/depth of nanoindentation, hardness and modulus of elasticity decreases. The question is that how we can be sure that which values of hardness or elasticity of modulus are...

05 June 2018 203 4 View

What is the difference between particle size and grain size?

SEM can be used to estimate the particle sizes of powder but If the powder is sintered then from SEM images of bulk sample, they are not said to be particle size anymore but grain size? Am I...

07 August 2017 6,651 6 View

I am trying to do Rietveld refinement using MAUD for X Ray data, can anyone help me out to fit the Fe80Ni20 nanopowder (after 5 minutes ball milling)?

I have already calibrated the diffraction instrument so I fixed the diffraction instrument and added two phases (Fe and Ni) and refined their volume fractions, cell lengths and isotropic (crystal...

02 March 2016 6,041 9 View

How to determine the crystallinity % using MAUD for rietveld refinement of FeNiTaB powders with different milling times?

01 January 1970 5,312 2 View

Why some Provskite structure ceramics are not piezoelectric?

Piezoelectric effect is caused by non-symmetrical charge in lattice but why some ceramics are piezoelectric but some are not?

01 January 1970 5,383 5 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 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

Does anyone know to clarify these changes?

01 March 2021 1,290 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