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The X-Ray SEF Scott Speakman

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Presentation on theme: "The X-Ray SEF Scott Speakman"— Presentation transcript:

1 The X-Ray SEF Scott Speakman 13-4009Ax3-6887speakman@mit.eduhttp://prism.mit.edu/xray

2 What Can You Do with XRD? Identify and Quantify Phase Composition TiO 2 - Rutile TiO 2 - Anatase TiO 2 - Brookite Rutile: P4 2 /mnm high temperature polymorph white pigment, sunscreen, UV-blocking coatings, photovoltaic Anatase: I4 1 /amd semiconductor, photocatalyst, antimicrobial coating, oxygen sensor Brookite: Pcab no known use

3 Other Things to Do with XRD Data  Measure Unit Cell Lattice Parameters  Estimate Crystallite Size and Microstrain  Measure Residual Stress (macrostrain)  Measure Texture or Epitaxy  Evaluate Thin Film Quality  Determine Crystal Orientation  Determine Crystal Structure

4 Diffraction Techniques Available at the CMSE  X-Ray Powder Diffraction (XRPD)  Grazing Incidence Angle Diffraction (GIXD)  Pole Figure Mapping  Microdiffraction (  XRD)  Residual Stress Mapping  In situ XRD from 11K to 1473 K  Reciprocal Space Mapping  Single Crystal Diffraction (SCD)  Back-Reflection Laue  X-Ray Reflectivity (XRR)  Small Angle X-Ray Scattering (SAXS)

5 Getting Access to XRD  Training for Self-Use Requires  1 hour X-ray Safety Course from EHS  1 hour Lab Specific Safety Training  2 hr Instrument Specific Training  2 hr Practical XRD Lecture  next session: June 21, 10 am to 5 pm

6 Getting Access to XRD  Also Recommended for Self-Users:  Basic XRD Data Analysis using Jade software  1:30 to 4 pm on June 26 or June 27  additional dates scheduled according to demand  Assisted Use is also Available  usually needs to be scheduled ~2 weeks in advance

7 Contact Information  Scott Speakman  office: 13-4009A  x3-6887  speakman@mit.edu  generally available 10 am to 4 pm M, T, Th, F  XRD Lab: 13-4027  XRD Computer Room: 13-4041 http://prism.mit.edu/xray


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