Liquid metals (LMs) illustrate a fantastic future. Thus, great endeavors are made to earn a comprehensive understanding of this fluid and carve it into a niche. Herein, by revisiting the combination of Ga‐based LMs and aluminum (Al), a new phenomenon, namely the disintegration of LM films on encountering water, is identified. Deviating from previous investigations where the LM generally took the form of bulk puddles, the LM‐Al slurry is spread as thin films here. In this case, Al debris embedded in the LM matrix hydrolyzes and therefore can exert disjoining pressure strong enough to split the thin film into countless tiny LM droplets. Based on this mechanism, transient circuits independent of substrate decomposition are realized. Furthermore, taking advantage of the portfolio strategy of pure LM and the LM‐Al slurry, novel concepts of flood warning and information storage and encryption are demonstrated. Integrating these functions all in one demonstrates the versatility of the disintegration of thin LM films engendered by Al corrosion, which provides a scientific insight into ephemeral art and makes the Ga─Al combination more illuminating.

中文翻译：

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铝腐蚀产生的液态金属薄膜的分解


液态金属 （LM） 预示着美好的未来。因此，人们付出了巨大的努力来全面了解这种液体并将其打造成一个利基市场。在此，通过重新审视基于 Ga的 LM 和铝 （Al） 的组合，确定了一种新现象，即 LM 薄膜在遇到水时分解。与以前的研究不同，LM 通常采用块状水坑的形式，LM-Al 浆料在这里以薄膜的形式铺布。在这种情况下，嵌入 LM 基体中的 Al 碎片会水解，因此可以施加足够强的分离压力，将薄膜分裂成无数微小的 LM 液滴。基于这种机制，实现了独立于衬底分解的瞬态电路。此外，利用纯改性活和改性铝浆液的组合策略，展示了洪水预警和信息存储和加密的新概念。将这些功能集于一身展示了 Al 腐蚀产生的 LM 薄膜分解的多功能性，这为短暂的艺术提供了科学见解，并使 Ga─Al 组合更具启发性。