This work focuses on the effect of surface cleaning treatments of soda‐lime‐silicate float glasses before chemical strengthening where a compressive stress layer is introduced via ion exchange. As‐received and cleaned glass surfaces were subjected to two different treatments using demineralized water and acidic solutions were subjected to ion exchange in a molten KNO₃ bath for 8 hours at 450°C. Precleaning treatment leads to a relative enhancement of the potassium surface concentration following chemical strengthening as compared to the uncleaned samples, also reflecting in altered surface stress profiles and case depth. These observations provide guidance for optimal pretreatment conditions of glass for chemical strengthening. Appropriate cleaning treatments can result in higher achievable fracture loads of subsequently chemically tempered glasses in ring‐on‐ring biaxial bending tests.

中文翻译：

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在化学强化玻璃之前进行表面清洁的效果

这项工作的重点是化学强化之前的钠钙硅酸盐浮法玻璃的表面清洁处理的效果，其中通过离子交换引入了压应力层。使用软化水对接收和清洁的玻璃表面进行两种不同的处理，并对酸性溶液在熔融的KNO _3中进行离子交换在450°C下浴8小时。与未清洗的样品相比，预清洗处理导致化学强化后钾表面浓度相对增加，这也反映在改变的表面应力分布和表面深度中。这些观察结果为化学强化玻璃的最佳预处理条件提供了指导。在环对环双轴弯曲试验中，适当的清洁处理可能会导致随后化学回火的玻璃产生更高的断裂载荷。