Zakaria Salmi

6 Questions 29 Answers 0 Followers

Questions related from Zakaria Salmi

Have you ever seen a blue solid forming on copper phosphorus alloys?

Dear researchers I need your help because I'm lost, I've ordered some copper phosporus alloy (CuP with 15% of Phosphorus) and during the summer a blue loose solid crystalised on the surface I was...

29 August 2023 4,135 2 View

(edited question) Is there a known interaction between weak acids (organic acid in general) and a cured sol gel coatings?

Hi everyone, I have a question for my fellow scientist in the sol gel community, I wanted to know if there are known interaction between acids and sol gel coatings (is it possible for a cured sol...

27 July 2021 2,143 5 View

Separation Copper from Iron ?

Dear Researchers; I have some metallic waste, it is some kind of powdered Copper, we have noticed Iron "attached" to copper particles. I would like to know if there was a chemical way to separate...

25 September 2020 8,529 4 View

Black stains on anodized aluminium?

Hi everyone, I have a question about a treatment that I am doing on aluminium parts, I have these aluminium (see image of the metalographic cut) pieces that I try to protect by anodization. After...

29 October 2018 8,948 3 View

Bubble on copper under e- beam?

Hi everyone i have a question concerning a copper sample that i had to weld under an electron beam, after i took back the sample I've noticed some bubbles under a" skin" of copper at the spot...

14 October 2018 9,473 4 View

Is anyone familiar with the 2D/G ratio of graphene?

I have deposited by CVD a graphene monolayer on copper ( I get a 2D/G of about 2,6) and after intercalation with an ammonium salt the ratio went up to 9.5. I would like to know your thoughts about...

02 March 2015 5,515 10 View