Lakshaman Kumar

6 Questions 14 Answers 0 Followers

Questions related from Lakshaman Kumar

Can anyone please suggest a way to make cubic BaTiO3 nanoparticles?

I have been trying to make cubic BaTiO3 nanoparticles in ambient conditions but could not do so. The solid-state route that I tried ended up melting and sticking of BaCO3 powders in the crucible....

03 October 2020 5,646 7 View

Using DSC and/or DTA, is there any enthalpy cut-off which will qualify one particular phase transition as first (1st) or second (2nd) order?

The question is coming because for the two phase transitions, one is characterized by sharp changes in enthalpy & the other stays as a diffused broad change (e.g., glass transition). Is it...

20 August 2020 6,662 5 View

Can anyone suggest me a way to sinter TiO2 in dense ceramic?

I have pelletized TiO2 powders using 4 tons pressure in 10mm die without any additive. The sintering has been done at 1200 degC. This sintered pellet have very low strength( it crumble during...

08 May 2020 1,134 15 View

What are the places in India where vacuum sintering of the ceramic pellets can be carried out above 1500 °C temperature and 10-5 mbar or more?

Dear experts, I am in need of some information regarding vacuum furnace which can be avail anywhere in India. The tests are required up to 1500 °C temperature and 10-5 mbar or more.

06 December 2019 5,864 2 View

How multiple pseudo-Voigt functions can be added?

As multiple Lorentzian functions are linearly added; βh = βf + βg +... Two Gaussian functions are root mean square added; β2h = β2f + β2g +...

07 November 2019 208 5 View

How to address/sort out the issues while determining the instrumental broadening factor in X-Ray diffraction?

How to address/sort out the issues while determining the instrumental broadening factor in X-Ray diffraction? I would like to determine instrumental broadening in X-Ray diffraction. For this...

25 June 2019 1,262 6 View