Table 1 The chemical compositions of sample #090 and #084 measured by EPMA and TEM-EDS
From: Measurement of ferric iron in Chang’e-5 impact glass beads
wt.% | #090 (EPMA) | #090 (TEM-EDS) | #084 (TEM-EDS) |
|---|---|---|---|
SiO2 | 43.1 | 44.7 | 47.7 |
TiO2 | 5.25 | 5.3 | 4.0 |
Al2O3 | 12.3 | 12.1 | 9.5 |
Cr2O3 | 0.2 | – | – |
FeO | 21.1 | 20 | 17.2 |
NiO | 0.36 | – | – |
MnO | 0.27 | – | – |
MgO | 6.52 | 6.1 | 7.3 |
CaO | 11.2 | 11.9 | 14.4 |
Na2O | 0.16 | – | – |
K2O | 0.06 | – | – |
P2O5 | 0.06 | – | – |
SO3 | 0.02 | – | – |
Total | 100.6 | 100.1 | 100.1 |