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首页> 外文期刊>Acta biomaterialia >Predicting the glass transition temperature of bioactive glasses from their molecular chemical composition.
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Predicting the glass transition temperature of bioactive glasses from their molecular chemical composition.

机译：从生物活性玻璃的分子化学组成预测其玻璃化转变温度。

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摘要

A recently published paper (M.D. O'Donnell, Acta Biomaterialia 7 (2011) 2264-2269) suggests that it is possible to correlate the glass transition temperature (T(g)) of bioactive glasses with their molar composition, based on iterative least-squares fitting of published T(g) data. However, we show that the glass structure is an important parameter in determining T(g). Phase separation, local structural effects and components (intermediate oxides) which can switch their structural role in the glass network need to be taken into consideration, as they are likely to influence the glass transition temperature of bioactive glasses. Although the model suggested by O'Donnell works reasonably well for glasses within the composition range presented, it is oversimplified and fails for glasses outside certain compositional boundaries.
机译：最近发表的论文（MD O'Donnell，Acta Biomaterialia 7（2011）2264-2269）建议，基于迭代最小二乘法，可以将生物活性玻璃的玻璃化转变温度（T（g））与其摩尔组成相关联。已发布的T（g）数据的平方拟合。但是，我们表明玻璃结构是确定T（g）的重要参数。必须考虑相分离，局部结构效应和可改变其在玻璃网络中的结构作用的组分（中间氧化物），因为它们可能会影响生物活性玻璃的玻璃化转变温度。尽管O'Donnell建议的模型对于所示成分范围内的眼镜相当有效，但它过于简化，对于某些成分范围以外的眼镜则无效。

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