The study looked at how cracks grow in soda-lime glass in different chemical environments. The researchers found that the same factors that affect crack growth in silica also affect soda-lime glass. However, the behavior of soda-lime glass is different due to the presence of sodium and calcium ions. These ions can change the strength of the bonds in the glass, affecting how cracks spread. Sodium ion exchange and silica dissolution were also found to play a role in crack growth, especially at low speeds.