具有多孔金属结构的相变表面用于长期的抗/脱冰应用
Deyu Yang1, Rui Bao2, Adam T Clare3
1State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an 710072, China.
Journal of colloid and interface science
|January 19, 2024
概括
研究人员使用相变材料 (PCM) 浸多孔金属结构 (PIPMS) 开发了可变相的恐冰表面. 这些表面有效地减轻了冰的积累,在重复的结冰周期后,冰的粘附度低,耗尽最小.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 部落学 (tribology) 是一个学科.
背景情况:
- 冰的危险在各个行业中构成重大安全和经济风险.
- 恐冰表面通过减少冰的附着性提供了一个有前途的解决方案,但由于液体耗尽而受到影响.
- 解决液体耗尽问题对于恐冰技术的实际应用至关重要.
研究的目的:
- 开发一种新的可变相的恐冰表面,以克服液体耗尽问题.
- 调查拟议表面的恐冰机制和长期耐用性.
- 提高恐冰表面在结冰环境中的实用性.
主要方法:
- 制造相变材料 (PCM) -浸多孔金属结构 (PIPMS).
- 评估表面的恐冰性,包括冰的粘附强度和核化延迟.
- 在多个结冰/解结冰周期中对接口相互作用和PCM耗尽的分析.
- 开发相变模型以了解恐冰机制.
主要成果:
- 开发的PIPMS表现出极好的恐冰性,冰的粘附强度低 (<5kPa).
- 这些表面显著延迟了冰核形成,并表现出长期的耐湿性.
- 在50个结冰/脱冰周期后,PCM耗尽是最小的 (<10%),证实了耐用性.
- 接口分析揭示了未结的准液体和固体滑剂层的作用.
结论:
- 通过利用相变界面相互作用,PIPMS提供了一个有效和持久的恐冰平台.
- 该战略成功地解决了恐冰表面的液体耗尽问题.
- 这种方法为工业冰的减缓挑战提供了可行的解决方案.
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