Synthesis, Characterization, and Thermal Decomposition of Pure and Dysprosium Doped Yttrium Phosphate System

Table 1

Experimental and theoretical calculated composition obtained from energy dispersive X-ray analysis (EDAX) of various constituent elements present in the following cases.

(a) Yttrium phosphate (YPO₄)

Element	Experimental values		Theoretical values
	Wt%	At%	Wt%	At%
Oxygen	32.92	56.34	30.8	55.42
Phosphorous	11.08	12.03	11.95	11.08
Yttrium	33.15	09.23	34.31	11.08
Hydrogen	—	—	22.94	22.42

(b) Dysprosium doped yttrium phosphate (Dy:YPO₄)

Element	Experimental values		Theoretical values
	Wt%	At%	Wt%	At%
Oxygen	40.12	68.07	42.15	70.89
Phosphorous	11.29	12.19	13.60	11.82
Dysprosium	01.13	00.68	01.43	00.24
Yttrium	38.40	10.10	38.26	11.58
Hydrogen	—	—	4.56	5.47