Table 2.

XRF analysis of elemental compositions in the NB, KB, NL, and KL ceramics.

Composition	Element	Weight concentration (%)	Atomic concentration (%)	Statistical error (%)
NB	Na	2.75	4.62	4.40
	Bi	21.10	3.90	0.39
	Ba	14.50	4.08	1.74
	Ca	4.43	4.27	1.74
	Sr	7.72	3.41	0.37
	Ti	24.8	20.03	0.74
KB	K	3.09	3.10	2.21
	Bi	20.50	3.85	0.41
	Ba	14.50	4.14	1.81
	Ca	4.24	4.15	1.86
	Sr	7.51	3.36	0.38
	Ti	25.50	20.91	0.76
NL	Na	3.39	5.29	3.89
	La	15.9	4.10	1.31
	Ba	15.30	3.99	1.38
	Ca	4.47	4.00	1.32
	Sr	7.94	3.25	0.29
	Ti	26.40	19.77	0.58
KL	K	3.62	3.44	1.66
	La	16.20	4.34	1.45
	Ba	15.4	4.17	1.53
	Ca	4.20	3.90	1.55
	Sr	8.64	3.67	0.30
	Ti	26.00	20.20	0.65