Jitendar kumar Tiwari

4 Questions 3 Answers 0 Followers

Questions related from Jitendar kumar Tiwari

Why D band of graphene shift towards higher frequency in raman spectra during straining ?

G band shift towards higher frequency and 2D band shift towards lower frequency as explained in literature DOI: 10.1021/nn800459e DOI: 10.1021/nl102123c

03 March 2019 3,788 3 View

Is is possible to measure lateral size of graphene on the basis of intensity ratios of D, G and 2D band?

I have found the formula for measuring the defect free length on graphene layers but is it possible to measure the lateral size also. I think there is negligible relation between lateral size of...

03 March 2019 8,156 1 View

What is the compressive strength of PLA ?

I have made micro lattice structure of PLA and performed compression test by which i want to generate the empirical relations. I have gone through some of the papers but only tensile strength of...

05 May 2017 874 2 View

How can i remove the black dots appeared in micro-structure of Aluminum ?

Optical images of cross-section of heat treated (550°C for 1 hr) Al sheet are attached. There are black dots appeared throughout the cross-section. I also tried with other sample but these black...

01 January 1970 2,205 3 View