Understanding of aqueous dissolution of silicate glasses and minerals is of great importance to both Earth and materials sciences. Silicate dissolution exhibits complex temporal evolution and rich pattern formations. Recently, we showed how observed complexity could emerge from a simple self-organizational mechanism: dissolution of the silica framework in a material could be catalyzed by the cations released from the reaction itself. This mechanism enables us to systematically predict many key features of a silicate dissolution process including the occurrence of a sharp corrosion front (vs. a leached surface layer), oscillatory dissolution and multiple stages of the alteration process (e.g., an alteration rate resumption at a late stage of glass dissolution). Here, through a linear stability analysis, we show that the same mechanism can also lead to morphological instability of an alteration front, which, in combination with oscillatory dissolution, can potentially lead to a whole suite of patterning phenomena, as observed on archaeological glass samples as well as in laboratory experiments, including wavy dissolution fronts, growth rings, incoherent bandings of alteration products, and corrosion pitting. The result thus further demonstrates the importance of the proposed self-accelerating mechanism in silicate material degradation.

理解硅酸盐玻璃和矿物在水中的溶解对地球科学和材料科学都至关重要。硅酸盐的溶解表现出复杂的时间演化和丰富的模式形成。最近，我们展示了如何从简单的自组织机制中观察到复杂性：二氧化硅骨架在材料中的溶解可通过反应本身释放的阳离子来催化。这种机制使我们能够系统地预测硅酸盐溶解过程的许多关键特征，包括尖锐的腐蚀锋面（相对于沥滤的表面层）的发生，振荡溶解和蚀变过程的多个阶段（例如，在硅酸盐岩中恢复蚀变速率）。玻璃溶解的后期）。在这里，通过线性稳定性分析，我们表明，同样的机制也可能导致蚀变前沿的形态不稳定，再加上振荡溶解，可能会导致整套图案化现象，正如在考古玻璃样品以及实验室实验中观察到的那样，包括波浪状的溶蚀锋面，生长环，蚀变产物的条带不连贯和腐蚀点蚀。因此，结果进一步证明了所提出的自加速机制在硅酸盐材料降解中的重要性。蚀变产物的条带不连贯，以及腐蚀点蚀。因此，结果进一步证明了所提出的自加速机制对硅酸盐材料降解的重要性。蚀变产物的条带不连贯，以及腐蚀点蚀。因此，结果进一步证明了所提出的自加速机制对硅酸盐材料降解的重要性。