George Pappas

5 Questions 23 Answers 0 Followers

Questions related from George Pappas

Platinum TGA pans melted at 1000°C. Any ideas why?

I am using High Temperature Platinum Pans suitable for temperatures up to 1000°C. I never had problems with these pans at any conditions (gas, heating rate, final temperature). However, I noticed...

13 May 2020 1,362 11 View

How to do the magnesiothermic reduction of silica?

I would like to obtain Si particles from magnesiothermic reduction of SiO2 particles. I've see in some papers that they put SiO2 and Mg in shielded stainless steel tubes and then in tube furnace...

10 December 2015 8,372 5 View

What's the best way to treat Silicon particles in order to produce surface hydroxyls?

I want to produce surface hydroxyls on silicon particles surface. I've seen in litrature that piranha solution at different ratios (sulforic acid to hydrogen peroxide) and elevated temprature is...

02 April 2015 3,301 8 View

How do I remove Alumina Crucible from TGA?

I use Mettler Toledo TGA1 and the alumina crucible has stuck on the balance and can't remove it. I run a high tempraure ramp to 1000 C but nothing. Any ideas? except calling the company! :)

29 March 2015 8,913 18 View

What crucible should I choose for a carbonization process?

I want to perform carbonization under these conditions: 1000°C, nitrogen gas, low heating rates. Is an alumina crucible suitable for this? I know it's not going to break but I'm afraid that it...

23 October 2014 5,526 3 View