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Selection of operating temperatures and time for the present research work [5,11,[15], [16], [17], [18],28].
| Heating rate, oC/min | Operating temperature, oC | Holding Time, minute |
|---|---|---|
| 15 °C/min is selected based on an electric stove, furnace and according to literature | 100 | 45, and 120 |
| 175 | 45, and 120 | |
| 250 | 45, and 120 | |
| 350 | 45, and 120 | |
| 450 | 45, and 120 |
