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Steiner B, Dobbyn RC, Black D, et al. High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals. J Res Natl Inst Stand Technol. 1991;96(3):305-331doi: 10.6028/jres.096.017.
Steiner, B., Dobbyn, R. C., Black, D., Burdette, H., Kuriyama, M., Spal, R., van den Berg, L., Fripp, A., Simchick, R., Lal, R. B., Batra, A., Matthiesen, D., & Ditchek, B. (1991). High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals. Journal of research of the National Institute of Standards and Technology, 96(3), 305-331. https://doi.org/10.6028/jres.096.017
Steiner, Bruce, et al. "High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals." Journal of research of the National Institute of Standards and Technology vol. 96,3 (1991): 305-331. doi: https://doi.org/10.6028/jres.096.017
Steiner B, Dobbyn RC, Black D, Burdette H, Kuriyama M, Spal R, van den Berg L, Fripp A, Simchick R, Lal RB, Batra A, Matthiesen D, Ditchek B. High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals. J Res Natl Inst Stand Technol. 1991 May-Jun;96(3):305-331. doi: 10.6028/jres.096.017. PMID: 28184117; PMCID: PMC4924892.
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J Res Natl Inst Stand Technol. 1991 May-Jun;96(3):305-331. doi: 10.6028/jres.096.017.

High Resolution Synchrotron X-Radiation Diffraction Imaging of Crystals Grown in Microgravity and Closely Related Terrestrial Crystals.

Journal of research of the National Institute of Standards and Technology

Bruce Steiner, Ronald C Dobbyn, David Black, Harold Burdette, Masao Kuriyama, Richard Spal, Lodewijk van den Berg, Archibald Fripp, Richard Simchick, Ravindra B Lal, Ashok Batra, David Matthiesen, Brian Ditchek

Affiliations

  1. National Institute of Standards and Technology, Gaithersburg, MD 20899.
  2. EG&G Energy Measurements, Goleta, CA 93116.
  3. NASA Langley Research Center Hampton, VA 23665.
  4. Alabama A&M University, Huntsville, AL 35762.
  5. GTE Laboratories, Waltham, MA 02254.

PMID: 28184117 PMCID: PMC4924892 DOI: 10.6028/jres.096.017

Abstract

Irregularities in three crystals grown in space and in four terrestrial crystals grown under otherwise comparable conditions have been observed in high resolution diffraction imaging. The images provide important new clues to the nature and origins of irregularities in each crystal. For two of the materials, mercuric iodide and lead tin telluride, more than one phase (an array of non diffracting inclusions) was observed in terrestrial samples; but the formation of these multiple phases appears to have been suppressed in directly comparable crystals grown in microgravity. The terrestrial seed crystal of triglycine sulfate displayed an unexpected layered structure, which propagated during directly comparable space growth. Terrestrial Bridgman regrowth of gallium arsenide revealed a mesoscopic structure substantially different from that of the original Czochralski material. A directly comparable crystal is to be grown shortly in space.

Keywords: crystal growth; diffraction; gallium arsenide; high resolution; lead tin telluride; mercuric iodide; microgravity; synchrotron; topography; triglycine sulfate

References

  1. Phys Rev B Condens Matter. 1988 Dec 15;38(17):12421-12427 - PubMed

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