Gabriel Silveira

3 Questions 3 Answers 0 Followers

Questions related from Gabriel Silveira

Why is there bubbles formation during chemical etching of glass with sulfuric acid ?

I'm trying to better understand the chemical reaction mechanism of sulfuric acid on glass surface. I've learned by acid attack small amounts of (mostly mono- or divalent) cations are leached out...

22 March 2019 1,181 1 View

How to quantify interface width, lateral correlation lenght and Hurst exponent by Gwyddion or Origin softwares?

I want to quantify some roughness parameters using AFM data. I tried to quantify some of them by Gwyddion software but its HHCF doesn’t have a fitting function contemplating all parameters I...

12 February 2019 6,652 4 View

How do modify surface roughness in PDMS using wet etching?

I want to modify surface roughness in Polydimethylsiloxane without changing its surface chemistry too much ? I have tried to treat PDMS substrates with sulfuric acid/hydrogen peroxide and then...

10 December 2018 2,312 5 View