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Advances in Electrical Discharge Machining of Insulating Ceramics

There are two main ways of carrying out the electrical discharge machining of the insulating ceramics: changing the electrical and chemical properties of ceramics due to additives in producing composites/nanocomposites and changing the electrical and chemical properties in the interelectrode gap. Th...

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Autores principales: Grigoriev, Sergey N., Volosova, Marina A., Okunkova, Anna A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488798/
https://www.ncbi.nlm.nih.gov/pubmed/37687651
http://dx.doi.org/10.3390/ma16175959
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author Grigoriev, Sergey N.
Volosova, Marina A.
Okunkova, Anna A.
author_facet Grigoriev, Sergey N.
Volosova, Marina A.
Okunkova, Anna A.
author_sort Grigoriev, Sergey N.
collection PubMed
description There are two main ways of carrying out the electrical discharge machining of the insulating ceramics: changing the electrical and chemical properties of ceramics due to additives in producing composites/nanocomposites and changing the electrical and chemical properties in the interelectrode gap. This review summarizes and analyzes the current data on the machinability in water suspension and hydrocarbons depending on the electrical properties of the ceramic composites and assisting means such as coating and powder. There are provided the existing approaches and original methods for solving the global problem of the electrical discharge machining of insulating ceramics, suggesting further development of the existing methods since, up to now, the experimental research is non-systemic. The dependencies of the machinability on the electrical properties of conductive ceramic composites, the specific electrical resistance of the assisting coating, and the assisting powder’s band gap and concentration for machining insulating ceramics are revealed. The higher the electrical conductivity, the higher the machinability of ceramic composites, and the lower the band gap, the higher the machinability for insulating ceramics. Two technological gaps were revealed in the powder’s concentration that can be a particular case of logarithmic decrement of attenuation. The proposed approach suggests using assisting powder with the lower band gap.
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spelling pubmed-104887982023-09-09 Advances in Electrical Discharge Machining of Insulating Ceramics Grigoriev, Sergey N. Volosova, Marina A. Okunkova, Anna A. Materials (Basel) Review There are two main ways of carrying out the electrical discharge machining of the insulating ceramics: changing the electrical and chemical properties of ceramics due to additives in producing composites/nanocomposites and changing the electrical and chemical properties in the interelectrode gap. This review summarizes and analyzes the current data on the machinability in water suspension and hydrocarbons depending on the electrical properties of the ceramic composites and assisting means such as coating and powder. There are provided the existing approaches and original methods for solving the global problem of the electrical discharge machining of insulating ceramics, suggesting further development of the existing methods since, up to now, the experimental research is non-systemic. The dependencies of the machinability on the electrical properties of conductive ceramic composites, the specific electrical resistance of the assisting coating, and the assisting powder’s band gap and concentration for machining insulating ceramics are revealed. The higher the electrical conductivity, the higher the machinability of ceramic composites, and the lower the band gap, the higher the machinability for insulating ceramics. Two technological gaps were revealed in the powder’s concentration that can be a particular case of logarithmic decrement of attenuation. The proposed approach suggests using assisting powder with the lower band gap. MDPI 2023-08-30 /pmc/articles/PMC10488798/ /pubmed/37687651 http://dx.doi.org/10.3390/ma16175959 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Grigoriev, Sergey N.
Volosova, Marina A.
Okunkova, Anna A.
Advances in Electrical Discharge Machining of Insulating Ceramics
title Advances in Electrical Discharge Machining of Insulating Ceramics
title_full Advances in Electrical Discharge Machining of Insulating Ceramics
title_fullStr Advances in Electrical Discharge Machining of Insulating Ceramics
title_full_unstemmed Advances in Electrical Discharge Machining of Insulating Ceramics
title_short Advances in Electrical Discharge Machining of Insulating Ceramics
title_sort advances in electrical discharge machining of insulating ceramics
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488798/
https://www.ncbi.nlm.nih.gov/pubmed/37687651
http://dx.doi.org/10.3390/ma16175959
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