Laser drilling of structural ceramics—A review

Wang, Hongjian; Lin, Hua‐Tay; Wang, Chengyong; Zheng, Lijuan; Xiao-yue, HU

doi:10.1016/j.jeurceramsoc.2016.10.031

Cited by 103 publications

(32 citation statements)

References 70 publications

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“…Advanced ceramic materials have been widely applied in the automobile, aerospace, and military sectors because of their excellent corrosion resistance, high-temperature resistance, and high strength. 1 In addition, the mechanical properties [2][3][4][5][6][7] of polycrystalline ceramics such as aluminum oxide (Al 2 O 3 ) and silicon carbide (SiC) can be strongly improved by microstructure configurations.…”

Section: Introductionmentioning

confidence: 99%

Influence of grain boundary and grain size on the mechanical properties of polycrystalline ceramics: Grain‐scale simulations

et al. 2020

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The Orowan‐Petch relation is a famous model to describe the strength of polycrystalline ceramics covering a wide range of grain sizes. However, it becomes difficult to explain the strength trend when the grain size decreases to the sub‐microscale or nanoscale. This is because some microstructural parameters (such as grain size, grain boundary fracture energy, and grain boundary defects) vary with different processing technologies, and their coupling effects on mechanical properties are still unclear. In this study, a finite element method (FEM) was applied to investigate the dependence of mechanical properties, such as strength and damage resistance, on the abovementioned microstructural parameters on example of alumina. The numerical results show that the grain boundary energy is weakly coupled with the grain size and grain boundary defects. The grain size and grain boundary are intercoupling, which affects mechanical properties. The mechanical properties could be improved by increasing the grain boundary fracture energy and decreasing the grain size and the grain boundary defect density.

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Section: Introductionmentioning

confidence: 99%

Influence of grain boundary and grain size on the mechanical properties of polycrystalline ceramics: Grain‐scale simulations

et al. 2020

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“…Great attention is given to the problem of action of laser radiation on materials of different nature [19][20][21], and different types of laser treatment (cleaning of the surface, scribing, cutting, and drilling) are assigned to laser machining of materials. In all these processes, heat propagation in a solid body is an important thermo physical problem, particularly in porous samples [22][23][24][25][26][27][28]. In recent years, numerical simulation of thermo physical processes has been actively developed [29][30][31][32][33].…”

Section: Accepted Articlementioning

confidence: 99%

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Aguilar

Власова

Bernal

et al. 2021

Int J Ceramic Engine & Sci

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The performed investigations have shown that the basis of the local laser heating/"drilling" of composite coarse-pored ceramics consisting of aluminosilicates and a glass phase is the melting and ablation processes that lead to the formation of a hole. The interaction of the components of the composite in the zone of high-temperature heating is accompanied by the formation of melt of a glass phase of new composition. The motion of the metal to the depth of a sample through pore channelsclusters of the main ceramic material depends on the viscosity of melt (i.e., on the radiation regime) and the cooling rate of the melt (i.e., the thermo physical properties of the ceramics and glass phase). The development of hydrodynamic pressure in the zone of laser heating leads not only to the ejection of a part of the melt from the channel, but also to the densification of the ceramics adjacent to the Accepted Article This article is protected by copyright. All rights reserved walls of the vitrified channel. These effects depend to a great extent on the ceramics/glass phase ratio and on the porosity of the initial ceramics.

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“…In contrast to Ti:sapphire amplifiers, there are microsecond [51,52] or millisecond [53][54][55] lasers, which are used in medical or industrial applications. For these long-pulse lasers, the spontaneous emission term given in Equation (18) should be included in the calculation, because the duration of the amplification process is similar to or longer than the fluorescence lifetime of the gain medium [43].…”

Section: Pumping and Spontaneous Emissionmentioning

confidence: 99%

Modeling and Analysis of High-Power Ti:sapphire Laser Amplifiers–A Review

et al. 2019

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We have introduced several factors that can be useful for the modeling and analysis of high-power Ti:sapphire laser amplifiers. The amplification model includes the phase distortion effect caused by the atomic phase shift (APS) in gain medium and the thermal-induced phase distortion effect caused by the high-average-power amplification. We have provided an accurate amplification model for the development of ultra-high-intensity and high-average-power lasers.

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Laser drilling of structural ceramics—A review

Cited by 103 publications

References 70 publications

Influence of grain boundary and grain size on the mechanical properties of polycrystalline ceramics: Grain‐scale simulations

Influence of grain boundary and grain size on the mechanical properties of polycrystalline ceramics: Grain‐scale simulations

Physicochemical processes in the zone of local laser heating of porous aluminosilicate ceramics

Modeling and Analysis of High-Power Ti:sapphire Laser Amplifiers–A Review

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