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 Results for DC.creator="K." AND DC.creator="Knorr" in section 3.9.6 of volume H
Quantitative determination of amorphous material
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6.3, pp. 360-361 [ doi:10.1107/97809553602060000954 ]
... Figure 3.9.13 | | Output of Rietveld refinement of XRD data (Cu K[alpha] radiation) for a synthetic sample containing a mixture crystalline ...

Modelling of structural disorder
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6.2, pp. 358-359 [ doi:10.1107/97809553602060000954 ]
... broadening of special classes of peaks, for example reflections with k [not equal to] 3n, can be modelled. This method is ... theory. Acta Cryst. A32, 83-87.GoogleScholar Dohrmann, R., Rüping, K. B., Kleber, M., Ufer, K. & Jahn, R. (2009). Variation of preferred orientation in ...

Application of the model
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6.1.2, pp. 357-358 [ doi:10.1107/97809553602060000954 ]
Application of the model 3.9.6.1.2. Application of the model The PONKCS method is applicable to any mixture in which there are one or more phases that are not fully characterized crystallographically, including essentially amorphous material, provided appropriate calibration samples can be obtained. In the mineralogical context, it may not be possible ...

Generation of calibrated PONKCS models
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6.1.1, p. 357 [ doi:10.1107/97809553602060000954 ]
Generation of calibrated PONKCS models 3.9.6.1.1. Generation of calibrated PONKCS models The generation of a suitable PONKCS model requires that: (1) The unknown phase is available as either a pure specimen or as a component of a mixture where its abundance is known (in some instances, this may be achieved by ...

Use of calibrated models
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6.1, pp. 356-358 [ doi:10.1107/97809553602060000954 ]
Use of calibrated models 3.9.6.1. Use of calibrated models Calibrated models are generally developed in one of twoways. The first (which uses what is referred to hereafter as an hkl_phase) is obtained via the use of partial structure information. Here the peak positions are constrained by a unit cell and ...

Quantification of phases with partial or no known crystal structures
Madsen, I., Scarlett, N., Kleeberg, R. and Knorr, K.  International Tables for Crystallography (2019). Vol. H, Section 3.9.6, pp. 356-360 [ doi:10.1107/97809553602060000954 ]
... broadening of special classes of peaks, for example reflections with k [not equal to] 3n, can be modelled. This method is ... Figure 3.9.13 | | Output of Rietveld refinement of XRD data (Cu K[alpha] radiation) for a synthetic sample containing a mixture crystalline ... theory. Acta Cryst. A32, 83-87.GoogleScholar Dohrmann, R., Rüping, K. B., Kleber, M., Ufer, K. & Jahn, R. (2009). ...

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