Zakaria Salmi

7 Questions 31 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 4,198 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 2,194 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 8,573 4 View

How would compare PVD vs Solgel?

Hi everybody, I wanted to know from your point of view how would compare solgel deposition vs pvd in terms of properties, cost, ease of use etc... (We are interested mainly by corrosion issues,...

10 May 2019 4,472 2 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 8,985 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 9,519 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 5,570 10 View