Table 3.

Chemical compositions of different phases in the melting zone

Region	Composition
	Ti	Cu	Al	Si	O
4 (at %)	70.26	0.52	0.30	0.04	28.88
4 (wt %)	86.96	0.85	0.21	0.03	11.94
5 (at %)	64.50	29.20	3.20	0.51	2.59
5 (wt %)	60.72	36.48	1.70	0.28	0.81
6 (at %)	30.04	54.68	13.42	0.13	1.73
6 (wt %)	27.11	65.48	6.82	0.07	0.52