Comparison between sinter forging and X-ray microtomography methods for determining sintering stress and bulk viscosity
Comparison between sinter forging and X-ray microtomography methods for determining sintering stress and bulk viscosity
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DOI：
10.1016/j.jeurceramsoc.2017.12.028
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发表时间：
2017-12
影响因子：
5.7
通讯作者：
Gaku Okuma;J. Gonzalez‐Julian;O. Guillon;F. Wakai
中科院分区：
文献类型：
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作者：
Gaku Okuma;J. Gonzalez‐Julian;O. Guillon;F. Wakai
通过对钙铝硅酸盐(CAS)玻璃粘性烧结的非连续烧结锻造实验，测定了其宏观烧结参数：烧结应力、体积粘度和剪切粘度。将计算结果与X射线显微层析技术测量的球状钠钙玻璃颗粒粘性烧结过程中的微观结构演化的实验值进行了比较。用表面能和初始颗粒尺寸归一化的CAS玻璃的烧结应力与由钠钙玻璃显微断层扫描数据估算的值吻合较好，尽管颗粒形状和化学成分有所不同。用玻璃粘度进行归一化处理后，非连续烧结锻造得到的体相粘度与X射线显微断层摄影测量得到的体相粘度吻合较好。
The macroscopic sintering parameters, sintering stress, bulk viscosity, and shear viscosity, were measured by the discontinuous sinter forging experiment for viscous sintering of calcium aluminosilicate (CAS) glass. The calculated results were compared with experimental values from the microstructural evolution during viscous sintering of spherical soda lime glass particles by X-ray microtomography. The sintering stress of CAS glass normalized by surface energy and the initial particle size was in good agreement with values estimated from the microtomography data of soda lime glass, despite the differences in particle shape and chemical composition. The bulk viscosity obtained by discontinuous sinter forging agreed fairly well with that estimated by X-ray microtomography observation, when they were normalized by glass viscosity.