Deconvolution results of ²⁷Al MAS-NMR spectra for NCAP, NCABP and NCAGP glasses.

Glass	Al(OAl)4	Al(OP)4	Al(OP)5	Al(OAl)6	Al(OP)6	Parameters
NCAP	60	50	26	16	−2.5	Position (ppm)
	11 549	4200	7083.09	7600	7600	CQ (quad)
	20	56	8	8	8	Integrated area (%)
NCABP	60	50	25	16	−3	Position (ppm)
	11 500	4200	7000	7600	7000	CQ (quad)
	17	62	9	6	6	Integrated area (%)
NCAGP	61	51	29	17	−1	Position (ppm)
	11 570	5000	6974	8468	6518	CQ (quad)
	19	54	12	10	5	Integrated area (%)