X-ray induced synthesis of 8H diamond

Zhongwu Wang, Yusheng Zhao, Chang Sheng Zha, Qing Xue, Robert T Downs, Ren Guan Duan, Razvan Caracas, Xiaozhou Liao

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The samples of predominantly 8H diamond polytype can be synthesized at ambient pressure by intense 20 kW synchrotron X-ray radiation at CHESS (Cornell High Energy Synchrotron Source) wiggler beam line was investigated. Low-magnification Transmission Electron Microscopy (TEM) images revealed that the X-ray-induced carbon displays a particular lamellar morphology, and selected area electron diffraction (SAED) patterns display 12 symmetrical spots with d-spacings that range from 1.99 to 2.14 Å. Synchrotron X-ray diffraction measurements together with simulations of the patterns were used to confirm the hexagonal structure. It was observed that an energetic high-temperature environment favors the nucleation of 3C and 2H diamond with a critical particle size of 2 nm, in which dislocations and stacking faults are not stable.

Original languageEnglish (US)
Pages (from-to)3303-3307
Number of pages5
JournalAdvanced Materials
Volume20
Issue number17
DOIs
StatePublished - Sep 3 2008

Fingerprint

Diamond
Synchrotrons
Diamonds
X rays
Stacking faults
Dislocations (crystals)
Electron diffraction
Diffraction patterns
Nucleation
Carbon
Particle size
Transmission electron microscopy
Radiation
X ray diffraction
Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Wang, Z., Zhao, Y., Zha, C. S., Xue, Q., Downs, R. T., Duan, R. G., ... Liao, X. (2008). X-ray induced synthesis of 8H diamond. Advanced Materials, 20(17), 3303-3307. https://doi.org/10.1002/adma.200800052

X-ray induced synthesis of 8H diamond. / Wang, Zhongwu; Zhao, Yusheng; Zha, Chang Sheng; Xue, Qing; Downs, Robert T; Duan, Ren Guan; Caracas, Razvan; Liao, Xiaozhou.

In: Advanced Materials, Vol. 20, No. 17, 03.09.2008, p. 3303-3307.

Research output: Contribution to journalArticle

Wang, Z, Zhao, Y, Zha, CS, Xue, Q, Downs, RT, Duan, RG, Caracas, R & Liao, X 2008, 'X-ray induced synthesis of 8H diamond', Advanced Materials, vol. 20, no. 17, pp. 3303-3307. https://doi.org/10.1002/adma.200800052
Wang Z, Zhao Y, Zha CS, Xue Q, Downs RT, Duan RG et al. X-ray induced synthesis of 8H diamond. Advanced Materials. 2008 Sep 3;20(17):3303-3307. https://doi.org/10.1002/adma.200800052
Wang, Zhongwu ; Zhao, Yusheng ; Zha, Chang Sheng ; Xue, Qing ; Downs, Robert T ; Duan, Ren Guan ; Caracas, Razvan ; Liao, Xiaozhou. / X-ray induced synthesis of 8H diamond. In: Advanced Materials. 2008 ; Vol. 20, No. 17. pp. 3303-3307.
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