Jerson Peralta

6 Questions 4 Answers 0 Followers

Questions related from Jerson Peralta

Does anyone know if there are any models to calculate the possible adhesion of a polymer deposited onto a metallic substrate?

In my experience, to coat a metallic substrate with a polymeric paint is a matter of trial and error. Such strategy is time consuming and sometimes frustrating. To have a model to evaluate...

11 June 2021 7,155 3 View

Does anyone have recommendations to increase the adhesion of thermally evaporated Al deposited onto PMMA?

I am depositing Al onto PMMA via thermal evaporation. Currently I have already tried to improve the adhesion of the films by two different strategies: 1. Evaporating SiO prior to the Al...

28 May 2020 5,471 6 View

Can I use magnets to press a dielectric substrate againts its holder in a sputtering machine?

I have to coat a plastic substrate. I usually hold my substrates using little metallic clamps, but this one would need to be coated in the outer area of the whole substrate (can only hold it from...

24 April 2020 3,014 3 View

Can someone please help me to understand how to correct a feature in Kiessig fringes fitting of XRR data simulation of a bilayered thin film?

I am simulating XRR data of sputtered Cr thin films deposited on glass substrates. I have failed simulating the XRR data of one sample; the film is Cr 20 nm thick and in the simulation model I am...

02 December 2016 9,152 4 View

Does anyone know about characterization techniques used to study chemical bonding at the interface between polymers and sputtered films?

03 September 2014 6,035 8 View

Does anyone have experience with materials to avoid in vacuum systems?

I would like to know what kind of materials should be avoided in sputtering processes. I deposit evacuating the chamber around 10^-6/-5 mbar and at working pressures around 1x10^-3 mbar. By the...

01 September 2014 7,952 14 View