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来源：百度知道 编辑：UC知道 时间：2024/05/10 04:37:38
3. Results and discussion
3.1. Chemical characterization
The chemical composition of the frits studied in this work has been shown previously in Table 1. Additionally, two frits with additives were also studied: sample M, made of frit D with 5% of alumina and sample N, a composed enamel containing 37% of frit B. Their chemical composition is shown in Table 3.
Regarding the composition of frits A to E, they have the same elements but in different concentrations, exception made for frits B and C that do also contain Li2O and for frit E that contains both B2O3 and Li2O.
In the frits composition there are always predominant elements describing a glass-ceramic system. Except for frit A, that shows a quaternary system, all frits presented a ternary system. If we refer to the phase diagram of each glass-ceramic system [5] and using the chemical composition in Table 1, we may predict which is the crystalline phase that will devitrificate during the heat treatment. In Tabl
3.1. Chemical characterization
The chemical composition of the frits studied in this work has been shown previously in Table 1. Additionally, two frits with additives were also studied: sample M, made of frit D with 5% of alumina and sample N, a composed enamel containing 37% of frit B. Their chemical composition is shown in Table 3.
Regarding the composition of frits A to E, they have the same elements but in different concentrations, exception made for frits B and C that do also contain Li2O and for frit E that contains both B2O3 and Li2O.
In the frits composition there are always predominant elements describing a glass-ceramic system. Except for frit A, that shows a quaternary system, all frits presented a ternary system. If we refer to the phase diagram of each glass-ceramic system [5] and using the chemical composition in Table 1, we may predict which is the crystalline phase that will devitrificate during the heat treatment. In Tabl
3. 结果与讨论
3.1. 化学特征
.在这次工作中被研究的frits的化学成分在以前Table1中有显示。
另外，有添加剂的两种frits同样被研究过，样本M--由fritD和百分之五的氧化铝组成，样本N--是含有百分之三十七frit B的合成搪瓷。Table3得出了它们的化学组成。
纵观fritsA-E的组成，它们有相同的元素但是不同的集合方式，同样含有Li20的fritsB和C，含有B203和Li20的fritsE都有例外。
在frits的组成中总有玻璃-陶瓷系统描述的从属元素。
除了显示第四纪系统的德fritA，所有的frits都代表一个三元系统。如果我们涉及到每一个玻璃陶瓷系统的阶段图表并且用Table1的化学成分，我们可以预言加热治疗过程的哪里是产生晶体的结晶阶段。
Table4 中显示了对于每一个frits的玻璃陶瓷系统和最有可能在燃烧中形成的相应的结晶阶段。