We investigated the correlation between the structures of 4-component glasses (B₂O₃–CaO–Al₂O₃–La₂O₃) and their leaching behaviors. We used a FT-IR and a MAS-NMR to analyze the structures of ground as-prepared and leached glasses for 7 and 28 days. Elemental releases represent that the leaching was incongruent. After leaching 28 days, BO₄ structure dramatically decreased and AlO₆ ratio increased compared to the glasses before the leaching test. That might be because these structures in the glasses were broken or released into solution during the leaching test. The addition of La³⁺ into the glass stabilizes the formation of BO₄ and more highly charged AlO₅ and AlO₆.

我们研究了4组分玻璃（B ₂ O ₃ –CaO–Al ₂ O ₃ –La ₂ O ₃）的结构与其浸出行为之间的相关性。我们使用FT-IR和MAS-NMR分析了7天和28天磨碎的玻璃的结构。元素释放表明浸出不一致。浸出28天后，与浸出试验前的玻璃相比，BO _4的结构显着降低，AlO _6的比例增加。这可能是因为在浸出测试期间，玻璃中的这些结构被破坏或释放到溶液中。La ^3+的添加进入玻璃可以稳定BO ₄以及更高电荷的AlO ₅和AlO _6的形成。