Table 4.
Phase compositions and lattice parameters obtained by Rietveld analysis.
| Parameter | 3Y-TZP | 4Y-PSZ | 5Y-PSZ | |||
|---|---|---|---|---|---|---|
| S2 | R/S2 | E2 | R/E2 | SMS2 | R/SMS2 | |
| Rwp (%) | 5.77 | 6.00 | 5.60 | 5.88 | 5.62 | 5.90 |
| Rexp (%) | 2.71 | 1.52 | 2.73 | 1.51 | 2.65 | 1.51 |
| Rp (%) | 4.51 | 4.69 | 4.41 | 4.42 | 4.27 | 4.56 |
| GOF | 2.13 | 3.95 | 2.05 | 3.89 | 2.12 | 3.90 |
| t-phase | ||||||
| z (O) | 0.5387(7) | 0.5418(10) | 0.5368(11) | 0.5457(14) | 0.5472(12) | 0.5485(18) |
| a (Å) | 3.6045(2) | 3.60489(3) | 3.6061(4) | 3.60599(5) | 3.6058(3) | 3.60501(5) |
| c (Å) | 5.1787(4) | 5.17902(6) | 5.1778(7) | 5.17898(10) | 5.1778(7) | 5.17832(10) |
| Amount (wt%) | 79.2(5) | 73.9(5) | 60.0(6) | 48.4(5) | 40.9(3) | 35.6(5) |
| c/a ratio | 1.0159 | 1.0159 | 1.0153 | 1.0156 | 1.0154 | 1.0157 |
| t’-phase | ||||||
| z (O) | 0.466(3) | 0.478(6) | 0.472(2) | 0.485(4) | 0.482(2) | 0.479(2) |
| a (Å) | 3.6218(11) | 3.62105(10) | 3.6224(7) | 3.62192(6) | 3.6238(4) | 3.62219(5) |
| c (Å) | 5.1533(2) | 5.1548(2) | 5.1524(14) | 5.15502(13) | 5.1527(8) | 5.15506(10) |
| Amount (wt%) | 20.8(5) | 26.1(5) | 40.0(6) | 51.6(5) | 59.1(3) | 64.4(5) |
| c/a ratio | 1.0061 | 1.0066 | 1.0058 | 1.0064 | 1.0054 | 1.0063 |
Space group = P42/nmcz (origin choice 2); Values in parentheses correspond to the estimated standard deviation in the least significant figure to the left. c/a ratio = c (Å)/ a (Å); GOF = goodness of fit.