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We checked some parameters. What we found is that the z-closed loop does not causes the spikes but the x-y-cloosed loop. However we need the x-y-closed loop if we would like to preciclely indent at a certain position. The overshoot or loop when withdrawing the indenter seems to come from the adhesion of the cantilever on the sample. When we indent less
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Normal 0 21 false false false DE X-NONE X-NONE Hello Bede, Thank you for your info. I appreciate it if you can send me the bug fix. Everything that was posted so far sounds like I can forget my original measurements. Too bad- it took over a week to prepare the samples and characterize them. I will have time to test all suggestions and hints in the coming
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Hi Igor, as far as I understood it, there should not be a difference between AFM and Nanoidentation. Of course each method has its errors- and AFM has more of them, that's why Nanoindentation is preferred. However we tried to indent small wires, which was not possible with the Nanoindenters available here. Anyway, the material is Ag. The curve was
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Hi Ash, we will give it a try and see what it changes. Thank you very much. Aaron
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Thank you Dietmar for your help. We'll see what I can do. But ok- your suggestion with 2 or more material sounds reasonable. Aaron
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Dear Dietmar, thank you for the hint. I guess it is better now: Coming back to your comments. I used the following: Dimension ICON in combination with Nanoscope V controller and PDNISP cantilever. Calibration of the deflection sensitivity was done with Saphire, as described in the manual. Still, Bruker told me to tune the deflection sensitivity afterwards
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sorry for the mess in my message: the image got lost... I try it again:
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Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 Hello Bruker, hello users, I am doing AFM indentation and came across some problems concerning calibrations. Through the exchange with Bruker I learned that I have to calibrate the deflection sensitivity and the contact area. The user manual tells me that I have to calibrate the