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The X-Ray SEF

The X-Ray SEF. Scott Speakman 13-4009A x3-6887 speakman@mit.edu http://prism.mit.edu/xray. What Can You Do with XRD?. Identify and Quantify Phase Composition. Rutile: P4 2 /mnm high temperature polymorph white pigment, sunscreen, UV-blocking coatings, photovoltaic. TiO 2 - Rutile

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The X-Ray SEF

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  1. The X-Ray SEF Scott Speakman 13-4009A x3-6887 speakman@mit.edu http://prism.mit.edu/xray

  2. What Can You Do with XRD? Identify and Quantify Phase Composition Rutile: P42/mnm high temperature polymorph white pigment, sunscreen, UV-blocking coatings, photovoltaic TiO2- Rutile TiO2- Anatase TiO2- Brookite Anatase: I41/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 Availableat the CMSE • X-Ray Powder Diffraction (XRPD) • Grazing Incidence Angle Diffraction (GIXD) • Pole Figure Mapping • Microdiffraction (mXRD) • 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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