Akeshwar Singh Yadav

6 Questions 161 Answers 0 Followers

Questions related from Akeshwar Singh Yadav

Is it possible to determine the small amount of lighter elements (with location) present in ferrite matrix by XRD or TEM or SEM-EBSD etc?

Lighter alloying elements like N and C are present (or added) in the ferrite matrix at various locations like at interstitial voids, dislocations and also at the interfaces and GB. Is there a...

09 September 2018 2,153 23 View

Why the Fe powder heated at high temperature stick together (sintered) and form a solid mass?

I tried to heat (oxidise) the Fe powder at 500C and it got sintered (bonded) together. The bonding is so strong that its not easy to manually grind it to get back the iron oxide powder. XRD shows...

09 September 2018 8,899 12 View

How to detect Hydrogen gas leakage?

I oftenly have to deal with the flamable gases like hydrogen. As we are well aware of its improper handling consequences, I want to know is there a cheaper, faster and simpler method to detect...

09 September 2018 6,215 1 View

Which method is better for calculating the dislocation density by XRD?

Researchers often calculate the dislocation density from XRD by using the Warren-Averbach method or by using the outputs of Williamson-Hall method . I want to know which is better and why? and...

08 August 2018 5,142 5 View

What are the advantages of doing Rietveld refinement of XRD pattern?

I want to know what are the advantages of performing Rietveld refinement of XRD pattern? What are the things we can calculate from this? There are few other techniques also from which one can...

08 August 2018 8,001 2 View

While analysing EBSD, why <15 deg misorientation is consider as low angle grain boundary?

In a large number of the research papers, 15 deg misorientation is consider as a transition from low angle GB to high angle GB. Why this particlar value of 15% and what are the assumptions for...

08 August 2018 7,578 24 View