Stefanos' Lab Group Page

Comment on the Nanoindentation Protocol and its relation to nanoblitz

 For nanoblitz, we cannot set a exact depth value as we did in the std hardness protocol, but we can decrease the load to 0.2mN or so to reach around 50nm depth

Hakan Yavas:
    Yes, fast protocol, hardness and nanoblitz are here
Ryder Bolin:
    There is suppose to be more nano blitz load and disp
Hakan Yavas:
    Ok, I saw it
Ryder Bolin:
    You saw that data?
Hakan Yavas:
    By the way, you did not get any hardness measurements
Stefanos Papanikolaou:
    ?
Hakan Yavas:
    It seems that the tip did not touch the surface
Ryder Bolin:
    Yes we did
    For nano?
    Cause the hard protocol has it
    Never mind I see it. Could you explain to me why this happened?
Hakan Yavas:
    You only have the hardness up to 0.3nm
Ryder Bolin:
    I removed backlash every time I set something up. You can ask stefanos he was there
    Hakan look at the nano indenter protocol and see if you can find what's going on.


Hakan Yavas:
    I am checking it
    when did you calibrate the tip?
Stefanos Papanikolaou:
    Ryder?
Ryder Bolin:
    Maybe 2 months ago I believe
Stefanos Papanikolaou:
    before we moved the machine?
Ryder Bolin:
    After nano mechanics ran checks on silica remember.
Hakan Yavas:
    December 6th
    Wrong tip calibration may cause this
Ryder Bolin:
    Nano mechanics ran is a complete work up. I had the check functionality and noise
Hakan Yavas:
    ryder, to do a proper tip calibration please follow the routine from the manual page 71
Ryder Bolin:
    Okay I'll run another calibration
Hakan Yavas:
    as I stated previously you should redo the tip calibration after getting large batch of data- so we can get more reliable data. hardness is a function of indented tip area and software calculates stiffness etc. using this parameter. it is very crucial
    + before running a tip calibration please clean the silica surface to remove possible contaminations and dirts- this will increase the calibration efficiency
Ryder Bolin:
    Okay I'll take care of it.


Re-calculation before exporting::::

Stefanos Papanikolaou:
    il momento della verita
Hakan Yavas:
    Also exported
Stefanos Papanikolaou:
    Ryder?
Ryder Bolin:
    Show me
    No show me how you exported
Hakan Yavas:
    Ok
    Before exporting it I recalculated the results
    Did you see it
Ryder Bolin:
    Oh okay try that with load.
    I saw
    Okay it worked thanks
Hakan Yavas:
    That works right
Ryder Bolin:
    Yes!
Hakan Yavas:
    Great