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Laser Drilling of Porous Aluminum Silicate Ceramics
Glass and Ceramics ( IF 0.6 ) Pub Date : 2021-05-29 , DOI: 10.1007/s10717-021-00342-8
Ya. S. Fironov , I. V. Mel’nikov , E. R. Nadezhdin , V. N. Tokarev

The features of laser drilling of highly porous composite ceramics consisting of aluminosilicate, glass, and a small addition of polystyrene (EPS) were studied experimentally. It was found that the formation of a liquid phase can contribute to the strengthening of ceramics. A list of factors determining the dynamics of hole formation is proposed. These include not only heating, melting, ablation, and ejection, previously known for metals and dense ceramics, but also a number of others: boiling-up of the mixture component with the lowest temperature of thermal decomposition and its departure from the affected zone; melt of less volatile components; compaction of ceramic adjoining the walls; glass transition of the liquid phase on cooling after irradiation. These effects depend on the density of the composite as well as on the viscosity of the liquefied material.



中文翻译:

多孔硅酸铝陶瓷的激光钻孔

实验研究了由铝硅酸盐、玻璃和少量聚苯乙烯 (EPS) 组成的高多孔复合陶瓷的激光钻孔特性。发现液相的形成有助于陶瓷的强化。提出了决定成孔动力学的一系列因素。这些不仅包括加热、熔化、烧蚀和喷射(以前用于金属和致密陶瓷),而且还包括许多其他:具有最低热分解温度的混合物组分的沸腾及其离开受影响区域;低挥发性成分的熔体;紧邻墙壁的陶瓷的压实;辐照后冷却时液相的玻璃化转变。

更新日期:2021-05-30
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