Table 4 Normalized elemental mass release NL i [g·m−2] and disslution rate ri [g·m−2·d−1] calculated from the concentration C i [ppm] of element i in solution for the glasses prepared in this study. These values were obtained from PCT procedures and measured by ICP-AES. Two other glasses reported previously were included for a comparison7,8. Error: ± 0.1%.
Specimens | Elements | ||||
|---|---|---|---|---|---|
Nd | B | Ca | Al | ||
CAB0 | C i (ppm) | — | 510.33 | 291.28 | 1.03 |
NL i (g·m−2) | — | 0.677 | 0.469 | 0.002 | |
r i (g·m−2·d−1) | 9.67·10−2 | 6.70·10−2 | 2.85·10−4 | ||
CAB10 | C i (ppm) | *LOD | 153.52 | 147.36 | 3.67 |
NL i (g·m−2) | (<5.00·10−5) | 0.406 | 0.473 | 0.016 | |
r i (g·m−2·d−1) | (<7.14·10−6) | 5.80·10−2 | 6.75·10−2 | 2.28·10−3 | |
CAB20 | C i (ppm) | *LOD | 15.60 | 13.99 | 1.74 |
NL i (g·m−2) | (<3.62·10−5) | 0.067 | 0.073 | 0.009 | |
r i (g·m−2·d−1) | (<5.17·10−6) | 9.57·10−3 | 1.04·10−2 | 1.28·10−3 | |
Alumino boroslilicate glass7 | NL i (g·m−2) | 10−4–10−5 | 0.03 | 0.3 | |
Alkali borosilicate glass8 | NL i (g·m−2) | 10−3 | 36–46 | — | |
