Table 8 Unit cell parameters in crystalline phases with weight fractions higher than 8% from Mg y Cu 2-y V 2 O 7 (0 ≤ y ≤ 2) compositions fired at 800°C/1 h
y | Crystalline phases (weight fractions) | Unit cell parameters (Å and degrees) |
|---|---|---|
a / b / c // α / β / γ | ||
0.500 | C2 (56.8%) | 7.6430 (3) / 8.1076 (3) / 10.1147 (4) // 90.00 / 110.589 (4) / 90.00 |
M4 (26.3%) | 6.719 (1) / 8.553 (1) / 9.846 (2) // 90.00 / 91.33 (2) / 90.00 | |
M2 (16.9%) | 6.936 (1) / 8.423 (1) / 9.793 (2) // 90.00 / 98.32 (1) / 90.00 | |
0.750 | M3 (48.4%) | 6.9060 (4) / 8.3131 (5) / 9.5450 (5) // 90.00 / 95.346 (7) / 90.00 |
C2 (36.0%) | 7.6308 (4) / 8.1127 (5) / 10.0542 (7) // 90.00 / 110.389 (6) / 90.00 | |
C3 (15.1%) | 4.9809 (5) / 5.8341 (6) / 10.933 (1) // 101.554 (8) / 96.517 (7) / 95.032 (8) | |
1.000 | M4 (91.3%) | 6.7766 (4) / 8.4899 (4) / 9.1447 (6) // 90.00 / 88.294 (5) / 90.00 |
C2 (8.7%) | 7.542 (2) / 8.083 (2) / 10.0574 (2) // 90.00 / 110.59 (2) / 90.00 | |
1.250 | M4 (79.9%) | 6.81447 (7) / 8.11262 (8) / 9.30424 (9) // 90.00 / 88.444 (1) / 90.00 |
C2 (13.9%) | 7.6192 (3) / 8.0576 (4) / 10.1113 (4) // 90.00 / 109.689 (4) / 90.00 | |
1.500 | C1 (63.8%) | 8.3392 (1) / 20.8256 (3) / 6.44642 (9) // 90.00 / 90.00 / 90.00 |
M4 (32.1%) | 6.7458 (3) / 7.8414 (3) / 9.2234 (3) // 90.00 / 90.890 (3) / 90.00 | |
1.750 | M4 (59.3%) | 6.7825 (3) / 8.0761 (3) / 9.3084 (4) // 90.00 / 89.448 (4) / 90.00 |
MT (40.7%) | 4.9343 (4) / 5.4102 (5) / 10.7164 (9) // 99.866 (7) / 102.996 (5) / 98.743 (7) | |
2.000 | M4 (59.3%) | 6.7823 (1) / 8.0669 (2) / 9.3201 (2) // 90.00 / 89.345 (2) / 90.00 |
MT (40.7%) | 4.9354 (2) / 5.4094 (2) / 10.7145 (5) // 99.874 (3) / 102.959 (3) / 98.756 (3) |