How long does a copper fire pit last?
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63 Citations | Results show that 0.2 wt.% Cu additions decrease the metastable pit initiation rate by more than an order of magnitude and slow the pit growth rate mainly by decreasing the peak pit current attained. |
68 Citations | Road traffic and probably the existence of a fire place appear to contribute to the copper levels. |
26 Citations | Combining a statistical analysis of slag mineralogy with other lines of evidence, we argue that copper was extracted from sulfide ores through a process of roasting and smelting in deep pit furnaces. |
The relatively limited long-term pitting data that is available shows that maximum and average pit depths do not follow the power law function as conventionally assumed but tend to follow a bimodal trend with exposure time. | |
It is concluded that copper sheets were thinned through repeated cycles of hammering and annealing performed at temperatures achievable in an open wood fire. | |
30 Citations | The incidence of burning does not seem to increase over time as a result of the postulated transition of pit structures from domestic to ceremonial uses. |
63 Citations | Overall, Cu additions decrease the probability of stable pit formation by decreasing metastable pit initiation and growth rates. |
The observed good response and reliability of the sensor show that it should be a powerful tool for improvement of the fire refining process of the molten copper. | |
01 Jan 2008 39 Citations | For the specific environment tested experimentally, the model could be used to predict the distribution of pit depths at long exposure times. |
124 Citations | Given the in-service lifetime of the applications of copper identified in this model, most of the copper processed during the last few decades still resides in society, mostly in non-dissipative uses. |
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