Abstract
Passive monitoring techniques have been used for peak temperature measurements during irradiation tests by exploiting the melting point of well-characterized materials. Recent efforts to expand the capabilities of such peak temperature detection instrumentation include the development and testing of additively manufactured (AM) melt wires. In an effort to demonstrate and benchmark the performance and reliability of AM melt wires, we conducted a study to compare prototypical standard melt wires to an AM melt wire capsule, composed of printed aluminum, zinc, and tin melt wires. The lowest melting-point material used was Sn, with a melting point of approximately 230 °C, Zn melts at approximately 420 °C, and the high melting-point material was aluminum, with an approximate melting point of 660 °C. Through differential scanning calorimetry and furnace testing we show that the performance of our AM melt wire capsule was consistent with that of the standard melt-wire capsule, highlighting a path towards miniaturized peak-temperature sensors for in-pile sensor applications.
Highlights
It was milled to create abalance, dimple temperature of 200 ◦ C for 1 h in a reducing atmosphere
Once melt wire materials are are selected, selected, they they are are ordered ordered from from reliable reliable vendors vendors that that provide a certification of purity that remains traceable throughout the fabrication provide a certification of purity that remains traceable throughout the fabricationprocess
For characterization of the powder feedstock is critical for assessing comForAM
Summary
For over a century burning fossil fuels has provided most of the energy required to heat our homes, power industry, drive our cars, and light up our cities. 85% of total energy comes from oil, coal, and natural gas [1]. Of the clean energy sources available there is only one zero-carbon technology capable of meeting most, if not all, of the energy demands of a modern society, and that is nuclear power. Severe reactor accidents such as Fukushima Daiichi Nuclear Power Plant (2011)
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