Table 2. Effect of Paste Composition on the Characteristics of the Printed Channela.
| wicking
constant (D) |
wicking power (p) | ||||
|---|---|---|---|---|---|
| channel | mass (mg) | thickness (μm) | L = Dt0.5 | L = Dtp | L = Dtp |
| Ca–H | 130 ± 0.6 | 352 ± 18 | 4.54 | 5.48 | 0.465 |
| CaP–H | 136 ± 39 | 372 ± 19 | 4.07 | 4.89 | 0.468 |
| Ca–C | 44.5 ± 3 | 200 ± 11 | 1.85 | 4.07 | 0.390 |
| CaP–C | 46.7 ± 2 | 207 ± 33 | 2.67 | 3.91 | 0.444 |
| Ca–CH | 65.0 ± 4 | 209 ± 10 | 3.14 | 4.42 | 0.449 |
| CaP–CH | 55.3 ± 6 | 201 ± 10 | 3.07 | 4.05 | 0.460 |
a
The wicking constant (D) describes the capillary flow of the fluid related to the particulate pore structure of the channels. The D values are obtained by fitting the recorded flow distances according to either the Lucas–Washburn (L–W) model (function of t0.5) or as the power law function (function of tp).