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Scans

Scans. 300 second A “Blank” scan was taken and the results were subtracted from the other scans. Data. Black Pigment Area. Orange Pigment Area. White Pigment Area. Scans too diffuse for phase analysis White pigmented area more crystalline structure More analysis is needed (stay tuned!).

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Scans

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  1. Scans • 300 second • A “Blank” scan was taken and the results were subtracted from the other scans.

  2. Data Black Pigment Area Orange Pigment Area White Pigment Area Scans too diffuse for phase analysis White pigmented area more crystalline structure More analysis is needed (stay tuned!)

  3. Nylon Testing DMA Mount with sample Nylon 66 produced last week in the polymer lab used for Dynamic Mechanical Testing

  4. Test Results on Nylon66

  5. Test Results Manufactured Nylon

  6. Comparing Nylons NYLON 66 Nylon 66 had a higher melting point NYLON STRING Nylon String had a higher Complex Modulus

  7. Scintag (2 Theta Diiractometer) • Diffractometer -is a measuring instrument used for analyzing the structure of a usually crystalline substance from the scattering pattern produced when a beam of radiation or particles (as X rays or neutrons) interacts with it.

  8. Corals-Old and New Fossil (Devonian) Coral Recent Coral

  9. Fossil Coral Peaks match for Calcite (Calcium Carbonate)

  10. Recent Coral Peaks match Aragonite (Calcium Carbonate)

  11. Fossil coral Recent coral Comparison of Corals

  12. Calcite and Aragonite are Polymorphs. Polymorphs have the same chemistry but different crystal structures and symmetries. Aragonite is thermodynamically unstable at standard temperature and pressure

  13. In order for aragonite to be stable at higher temperatures, there has to be higher pressures Aragonite forms naturally as the calcareous endoskeleton of warm- and cold-water corals (Scleractina) How does the coral do it?

  14. Are they real gemstones? or The case of the star-crossed ruby

  15. Three possible gemstones Ruby? Diamond?

  16. Multiwire Ltd. Back Reflection Laue Used to determine if we have a crystal and what its structure is.

  17. Film is placed between the x-ray source and the sample. Beams which are defracted in a backward plane are recorded

  18. One side of the cone of Laue* is defined by the transmitted beam. The film intersects the cone with the diffraction spots generally lying on the parabola *The cone of Laue has no relationship to the Cone of Silence.

  19. Diamond? Crystalline structure Some Symmetry Ruby? Crystalline Structure Good symmetry Emerald? No crystalline Structure. Fake.

  20. Analysis in GADDS Arcs= Peaks in Scintag Dots = Single Crystals You can’t analyze single crystals in the Scintage XRD.

  21. Analysis of the peaks revealed that the Diamond(?) was actually Yttrium Oxide.

  22. IT IS A RUBY!!!!

  23. But why did the star ruby cause Petra’s pacemaker to stop?

  24. Only the shadow knows.

  25. Diffractor • Niobium Tin on Silicon (Nb3Sn) • 2 annealed • 2 unannealed

  26. Nb3Sn (annealed)

  27. Nb3Sn (unannealed)

  28. X-Ray Scattering • Annealed Sample (Nb3Sn)

  29. X-Ray Scattering • Unannealed Sample (Nb3Sn)

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