Julien L. Colaux

3 Questions 2 Answers 0 Followers

Questions related from Julien L. Colaux

What reference material for measuring the sp²/sp³ ratio by XPS?

Hi everyone, We are involved in characterisation of DLC and a-C:H thin films for which we determine the sp²/sp³ ratio by XPS. In order to evaluate the uncertainty applying to the sp²/sp³ measured...

03 March 2018 580 4 View

What is the technique of choice for characterising impurites (at wt.ppm level) in concrete?

Dear all, I'm looking for the best approach possible for determining the chemical composition of concrete. The assumed composition is 0.56 H; 49.86 O; 1.71 Na; 0.24 Mg; 4.56 Al; 31.58 Si; 0.12 S;...

11 November 2016 7,556 2 View

How to select a material that will have a good adhesion on a SiO2 substrate?

I am in the Ion Beam analysis field and we are in the process of developing a new standard sample for the calibration of our chain of detection. For this sample, we need a semi-thick layer of SiO2...

05 May 2014 3,191 6 View