Electrical Transport Properties of (Bi_1.6Pb_0.4Sr₂Ca₂Cu₃O₁₀)/Ag Tapes with Different Nanosized MgO

Table 1

𝐽_𝑐 (at 0 T) of 𝑥=0 wt.%, 𝑥=0.10 wt.% of 20 nm MgO, and 𝑥=0.01 wt.% of 40 nm MgO added pellets and tapes sintered for 50 h and 100 h at 30 and 77 K.

𝑥 (wt.%)	𝐽𝑐 (30 K) Pellet; (A/cm^2)	𝐽𝑐 (77 K) Pellet; (A/cm^2)	𝐽𝑐 (30 K) Tape (50 h); (A/cm^2)	𝐽𝑐 (77 K) Tape (50 h); (A/cm^2)	𝐽𝑐 (30 K) Tape (100 h); (A/cm^2)	𝐽𝑐 (77 K) Tape (100 h); (A/cm^2)
0.00	0.65	0.31	8104	949	10820	1262
0.10 (20 nm)	4.13	1.73	15110	1532	18380	3676
0.01 (40 nm)	2.60	1.17	13120	1312	14060	1875