While numerous surface energy-based studies have investigated various aspects of CaSO₄ deposition on modified surfaces, the impact of surface temperature though, as a dominant parameter, has not thoroughly been characterized from surface energy perspective. This has led that most previous studies have attained surface energy specifications at ambient temperature for utilization at elevated operating temperatures. The present study examines the impact of surface temperature in the range of 293–368 K, but at a constant bulk temperature less than surface temperature, on surface energy and its sub-components of several metallic surfaces and amorphous carbon-based coatings. Moreover, the influence of surface temperature on the energy of adhesion between CaSO₄ precursors and these surfaces, energy of cohesion between precursors as well as wettability of surfaces in terms of spreading coefficient are also investigated. Results showed that the Lewis acid-base sub-component of surface energy experiences profound changes, at least 3-fold increase, with temperature, while it is a maximum of 1.5-fold decrease for the Lifshitz-van der Waals sub-component. A cumulative correlation based on the spreading coefficient is also proposed to project the propensity of investigated surfaces to CaSO₄ deposition as a function of temperature and is validated using data from the literature.

尽管许多基于表面能的研究已经研究了改性表面上CaSO ₄沉积的各个方面，但是从表面能的角度来看，作为主要参数的表面温度的影响尚未得到充分表征。这导致大多数以前的研究已经达到了在环境温度下的表面能指标，可以在升高的工作温度下使用。本研究考察了表面温度在293–368 K范围内（但恒定的体温低于表面温度）对几种金属表面和无定形碳基涂层的表面能及其子成分的影响。而且，表面温度对CaSO ₄之间的粘附能的影响还研究了前驱体和这些表面，前驱体之间的内聚能以及表面的润湿系数（根据扩散系数）。结果表明，表面能的路易斯酸碱子组分随温度发生了深刻的变化，至少增加了3倍，而Lifshitz-van der Waals子组分最多降低了1.5倍。还提出了基于扩散系数的累积相关性，以将所研究表面对CaSO ₄沉积的倾向作为温度的函数进行预测，并使用来自文献的数据进行了验证。