β Scribed by W.A. Bryant
No coin nor oath required. For personal study only.
The discharge capacity of an electrode prepared by the sinkring of sponge iron powder has Wn found to be highly dependent upon theelectrode's density. Maximumcapacities (near0.4 Ahr g-l) have been determined for dectrodes having densities within the range from 21.5 to 23.5% of the theoretical density of iron. High capacity was also found to be favored by low charge current density (25 mA cm -2). The capacity of a low density electrode (19.6% of the theoretical density of iron) was found to be much less a&ted by discharge -nt density than were higher density electrodes. Charge and discharge potentials were also determined as a function of electrode ,density. Large (403 cm') electrodes of the optimum density were prepared and found 10 have the same large capacity as their smaller, test-size counterparts.
lNl-RODUCTlON
π SIMILAR VOLUMES
Calcium phosphates are very important for applications in medicine due to their properties such as biocompatibility and bioactivity. In order to improve their properties, substitution of calcium with other ions has been proposed. Partial substitution of calcium by different ions has been made as a w