FIGURE 9.
(a) Wide angle x-ray diffraction pattern recorded from a single N. madagascariensis fiber at ID13/ESRF. The fiber axis is along the horizontal direction. The pattern can be indexed to an orthorhombic lattice, with the (120) reflection occurring as the strongest peak. A longitudinal cut through the (120) reflection can be analyzed to compute the lateral crystallite width from the Debye-Scherrer formula; see the wide stripe. (b) The resulting values for the crystallite width as a function of strain show a pronounced decrease.