Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 77. (Budapest 1985)

Szendrei, G. ; N. Tóth, M.: Contribution to the study on the crystallinity degree of kaolinites

50 100 DO [%] Fig. 2. Diagram of avarage deformation versus DO Results and discussion As it was mentioned before, certain relationships between the thermal parameters and the degree of (dis-) order in the kaolinites were recognized. Of these characteristics the loss of weight due to adsorbed water, temperature, height (expressed as percentage of the maximal peak height) and loss of weight at the endothermic peak, exothermic peak temperature and height, and the degree of order are given in Table 3. These parameters are affected not only by the (dis-)order of the kaolinites, but also by the conditions of measurement, grain size and the amount of kaolinite in the sample. Taking these factors into consideration, the samples were measured under standard conditions and the data thus obtained were in a relative manner evaluated only for the investigated group of specimens. Beside the degree of order of the kaolinites, the standard deviations of the figures were calculated and on this basis three groups (A, B, C) were formed. In group B the values