论文标题
单个气泡的超导源和传感器研究液氦的核沸腾
Superconducting source and sensor of single bubbles to study nucleate boiling of liquid helium
论文作者
论文摘要
低温微型和纳米式的电阻元件产生的焦点热通常起源于冷却低温液体（氦，氮）的沸腾。该文章提出了一种实验方法，通过感测，具有单相滑中心或线的超导薄膜微龙的温度变化，以探索低温液体中单个蒸气气泡形成和开发的动力学。由于温度依赖于温度的过量电流，它既可以提供用于产生单个气泡的热源和表面温度传感器。实验确定了核沸腾的平均气泡脱离速率和平均单个气泡体积。获得的值与文献中其他作者的数据非常吻合。
Joule heat generated by resistive elements of cryogenic micro- and nanodevices often originates boiling of the cooling cryogenic liquids (helium, nitrogen). The article proposes an experimental method to explore the dynamics of the formation and development of a single vapor bubble in cryogenic liquid by sensing the temperature change of a superconducting thin-film microbridge being in the resistive state with single phase-slip center or line. It serves both the source of heat for generating single bubbles and the surface temperature sensor due to its temperature-dependant excess current. The average bubble detachment rate and the average single bubble volume were experimentally determined for nucleate helium boiling. The obtained values are in good agreement with the data of other authors found in literature.
