Indentation cracking behaviour and structures of nanophase separation of glasses
Indentation cracking behaviour and structures of nanophase separation of glasses
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DOI：
10.13036/17533562.58.6.040
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发表时间：
2017-11
影响因子：
0.6
通讯作者：
Shangcong Cheng;C. Song;P. Ercius;Cristian Cionea;P. Hosemann
中科院分区：
文献类型：
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作者：
Shangcong Cheng;C. Song;P. Ercius;Cristian Cionea;P. Hosemann
Author（s）：Cheng，S; Song，C; Ercius，P; Cionea，C; Hosemann，P|摘要：相关显微镜是用来比较的性能和钠钙硅，熔融石英和硼硅酸盐玻璃，使用维氏压痕裂纹分析和透射电子显微镜（TEM）菲涅耳对比度方法的纳米相结构。据发现，所观察到的压痕开裂行为是相关的纳米相分离结构的这些玻璃。钠钙硅玻璃的所谓“正常”开裂行为受其亚稳纳米相分离的影响;而熔融石英的“异常”开裂行为是由于均匀的单相结构。硼硅酸盐玻璃具有液滴纳米相分离，并显示“中间”开裂行为。这些结果表明，为了制备低脆性玻璃，控制玻璃的纳米相分离结构是重要的。
Author(s): Cheng, S; Song, C; Ercius, P; Cionea, C; Hosemann, P | Abstract: Correlative microscopy is used to compare the performance and nanophase structures of soda-lime-silica, fused silica and borosilicate glasses using Vickers indentation crack analysis and the transmission electron microscopy (TEM) Fresnel contrast method. It is found that the observed indentation cracking behaviour is correlated to the nanophase separation structure of these glasses. The so-called "normal" cracking behaviour of soda-lime-silica glass is influenced by its spinodal nanophase separation; while the "anomalous" cracking behaviour of fused silica is due to the uniform single phase structure. Borosilicate glass has a droplet nanophase separation and shows "intermediate" cracking behaviour. These results indicate that in order to produce low britleness glasses it is important to control nanophase separation structure of a glass.