Laser Drilling of Porous Aluminum Silicate Ceramics

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 determi...

Full description

Saved in:
Bibliographic Details
Published in:Glass and ceramics 2021-05, Vol.78 (1-2), p.23-29
Main Authors: Fironov, Ya. S., Mel’nikov, I. V., Nadezhdin, E. R., Tokarev, V. N.
Format: Article
Language:English
Subjects:
Ablation
Aluminosilicates
Aluminum
Aluminum silicates
Ceramic materials
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Drilling and boring
Glass
Glass transition
Laser drilling
Liquid phases
Materials Science
Natural Materials
Polystyrene resins
Silicates
Temperature
Thermal decomposition
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-021-00342-8