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来源：百度知道 编辑：UC知道 时间：2024/05/11 05:28:39
3.2. Thermal properties
The DTA results are given in Figs. 1–5. Table 5 summarises the temperatures measured by DTA and heating microscopy. From these values, only one exothermic peak relating to the formation of crystalline phases is observed, exception made for frits B and D. In frit B there are two crystallization peaks (see Fig. 2) whereas in frit D there is no peak (Fig. 4). Additionally, frit D is the only frit presenting a ball temperature (B).
From the analysis of the results given above it is possible to establish a relationship between the sintering behaviour and the crystallization process, for each frit. Indeed, considering Table 5, one can see that the glass transition temperature (Tg) always occurs before the sintering temperature (S) while the softening temperature (M) always happens after the crystallization event. To better visualize this correlation, we plotted the characteristic temperatures given in Table 5 on the graphic of sample height versus firing t

热性能
DTA 结果由数据1-5给出，图表5总结由DTA和加热显微镜所测温度。从这些价值中，我们只能看出一个与结晶阶段形式相关的放热峰值，因为为弗里茨B和D做出了例外。在弗里茨B中有两个结晶峰
值而D中一个也没有。另外，弗里茨D是唯一有球形温度的弗里茨。

从以上的分析结果中我们是不可能为每一个弗里茨建立烧结行为和结晶过程关系的。的确，对于Table5，我们能够看出玻璃的过渡温度经常发生在烧结温度之前，而软化温度经常发生在结晶事件之后。为了更好的想象这种对比，我们采集了由表格五中样本高像素燃烧温度的图像提供特征温度。数据6-8为弗里茨A-C举出了些这次讲演的例子。
从这些数据中很明显得出：结晶过程发生时烧结过程结束。这也就是说，结晶同时特征样本为终止烧结进程而收缩了。另一方面，仅当结晶过程结束时软化过程才开始发生。所以这些结果证明晶体结构干扰结晶弗里茨的烧结过程。对于弗里茨D不可能建立这种对比。事实上以前已经解释过这种弗里茨是没有显示放热反应的，可能是因为结晶阶段没有的晶的。这就是对于弗里茨D，为什么被加热显微镜测出的软化的温度和其他温度发生的要早些，烧结行为显示的是球形温度的原因

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Thermal properties
The DTA results are given in Figs. 1–5. Table 5 summarises the temperatures measured by DTA and heating microscopy. From these values, only one exothermic peak relating to the formation of crystalline phases is observed, exception made for frits B and D. In frit B there are two crystallization peaks (see Fig. 2) whereas in frit D there is no peak (Fig. 4). Additionally, frit D is the only frit presenting a ball temperature (B