Crystalline Swelling Process of Mg-Exchanged Montmorillonite: Effect of External Environmental Solicitation

Table 3

Qualitative XRD investigation versus RH% in the case of the second hydration-dehydration cycle.

	% RH	d001 (A°)	FWHM (°2θ)	ξ	Character
Dehydration process	40 (start)	15.47	1.40		I
	30	14.23	1.44	0.16	I
	20	13.50	1.55	0.18	I
	10	12.89	1.76	0.10	I
Hydration process	20	13.32	1.69	0.53	I
	30	14.07	1.67	0.51	I
	40	14.82	1.72	0.80	I
	50	15.25	1.63	0.36	I
	60	15.59	1.60	0.15	I
	70	16.10	1.04	0.20	I
	80	16.88	1.00	0.49	I
Second dehydration process	70	16.31	0.95	0.20	H
	60	16.01	1.19	0.18	I
	50	15.60	1.46	0.15	I
	40 (return)	15.20	1.60	0.10	I