Kundan Kumar

13 Questions 24 Answers 0 Followers

Questions related from Kundan Kumar

Can we do the Rietveld refinement using XRD data recorded from a pellet/ceramic sample?

I have recorded X-ray diffraction (XRD) patterns of the oxide samples (sintered ceramic/pellet) using Cu-Kα radiation (λ = 0.154 nm). The sample contains two different phases. I want to quantify...

10 October 2019 5,061 10 View

Is total conductivity of CeO2 based material depends on the method of measurement?

I have measured total conductivity (electrical + ionic) of a ceria-based oxide by impedance analyzer in two ways: 1. By keeping the temperature constant at a time (like 400, 500, 600 700 °C...

08 August 2018 4,036 6 View

How to get crystallographic direction from the HRTEM image of a monoclinic structure?

I have HRTEM image of a monoclinic structure, how can I know the crystallographic direction for a particular plane? Also, I don't have zone axis HRTEM images. Kindly help

04 April 2017 4,011 1 View

How to get Crystallographic Information File (CIF) of XRD with the help of .raw and .txt files?

I have a raw and txt file of a compound how I can use them to get a CIF file for the compound? Please help

10 October 2016 2,399 0 View

How to quantify the amount of Oxygen moving in/out from the sample on heating it from 500 to 700 C ?

I have some oxide sample; I want to know how much oxygen is moving in or out from the sample when I heated it from 500 to 700 C. Can it be possible to measure it by TG-MS, if yes where I can do it...

10 October 2016 3,164 5 View

Reversal in intensity of the 250 with 550 peak for rhodamine during UV-Vis experiment for photocatalysis?

"When I am doing UV-Vis experiments with methylene blue or Rhodamine, I am getting the evidence for their degradation, but why I'm seeing an intensity reversal for the 250 and 550 peak of...

09 September 2016 2,499 19 View

Dilatometer facility at any place in India?

I want to use the Dilatometer facility for some of my powder samples (up to 1500 deg C or more). Could anyone please help me with the availability and relevant charges for using this facility at...

08 August 2016 9,620 3 View

Calculation of oxygen storage capacity from TG?

how to calculate oxygen storage capacity from Thermogravimetric (TG) instrument?

06 June 2016 2,107 0 View

What is the role of pH in Co-precipitation method?

how we can determine the ph for precipitation in co-ppt method?

05 May 2016 9,655 5 View

Can ph of a solution be reversible?

I was preparing a compound by co-precipitation method. After reaching ph-11, I continue adding ammonia to it, but ph of the solution starts decreasing. Can anybody please explain this phenomenon?

05 May 2016 3,122 4 View

How to determine crystal structure of unknown compound (not available in JCPDS pdf database)?

xrd, crystal structure

01 January 2016 1,938 6 View

How can we improve the adhesive property of carbon fiber.

carbon fiber has low wettability

12 December 2014 2,088 5 View

What are the effective parameters for the deposition of silica on carbon fibre by PECVD ?

Plasma enhanced chemical vapor deposition

12 December 2014 9,132 0 View