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ICDD Workshop 1 and 3 Sample Preparation Group A

ICDD Workshop 1 and 3 Sample Preparation Group A. Photographs by Stephen Williams. Peaks are too low, Sample is too low. Preferred orientation. Displaced by thickness of smear. Back loaded – w/ filter paper. Sample prep 1B peaks are too high in 2theta angle. Peaks shifted

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ICDD Workshop 1 and 3 Sample Preparation Group A

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  1. ICDD Workshop 1 and 3Sample PreparationGroup A Photographs by Stephen Williams

  2. Peaks are too low, Sample is too low. Preferred orientation

  3. Displaced by thickness of smear

  4. Back loaded – w/ filter paper

  5. Sample prep 1B peaks are too high in 2theta angle

  6. Peaks shifted to high 2theta

  7. Slurry mount Weak signal Amorphous hump

  8. When cavity was filled, some powder got between the holder and the cover slide Side drifted sample (purple) shows Shift to higher 2theta Uneven surface can result in broadened peaks 4A 2A 5A 1B vaseline

  9. Sample holder peaks Might help you sort out the shift of your unknown dusted pattern (weak)

  10. Container said Plaster of Paris – XRD shows that it is no longer only CaSO4 but now is a three phase mixture

  11. (200)

  12. Amorphous hump From glass and double Stick tape Weak signal because of low quantity of sample

  13. Mark! You labeled your sample wrong! Preferred orientation

  14. ?

  15. Sample S

  16. Sample H Blue 2c Red 1b

  17. Sample P Red 2b Blue 1b

  18. Sample D

  19. Sample G Red 3A Blue 2a

  20. A0716P1b

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