Wide-angle x-ray scattering patterns have been obtained using a solid state energy dispersive detector from a copper cathode x-ray source. Diffraction patterns from Whatman Number 4 filter paper, bleached eucalypt handsheets and unbleached NSSC eucalypt handsheets all show the characteristic peaks (Bragg reflections) of the major crystalline component, cellulose I, superimposed over an amorphous halo (two phase model). It is assumed that the major source of broadening is the finite size of crystallites, the degree of broadening of each peak reflecting a dimension of the crystallite along that crystallographic spacing. This effect is quantified using the Scherrer equation. The validity of the assumptions made with respect to the source of broadening are discussed in terms of the two-phase model.
|Number of pages||4|
|Publication status||Published - 3 Dec 2000|
|Event||54th Appita Annual Conference - Melbourne, Aust|
Duration: 3 Apr 2000 → 6 Apr 2000
|Conference||54th Appita Annual Conference|
|Period||3/04/00 → 6/04/00|