Development of electrical discharge machinable SiC-ZrN composites : unveiling high temperature sliding wear resistance

Prakasarao, Chodisetti Surya (author), Nadeem, Irfan (author), Kalin, Mitjan (author), Kumar, B. Venkata Manoj (author)

Dense SiC-(10-30 vol%) ZrN composites were developed using spark plasma sintering with AlN-Y2O3 additives at 1800 °C for 5 min in nitrogen atmosphere. The nascent oxide present on ZrN surface reduces liquid phase formation temperature, facilitating improved densification of SiC ceramics. Mechanical properties were retained, and electrical conductivity increased with ZrN addition. To demonstrate a rapid and low-cost machining alternative for SiC ceramics, SiC-ZrN composites were successfully cut using wire-EDM. The tribological potential of novel electrical discharge machinable SiC-ZrN composite disk against SiC ball at various conditions of reciprocating sliding contacts was investigated. Friction is less affected by reinforcement content at room temperature (25 ℃) but significant change is observed at high temperature (600 ℃). Minimum one order of lower wear rate is reported with an increase in temperature from 25 ℃ to 600 ℃. The major wear mechanism changed from abrasion to tribo oxidation with increase in temperature.

• Language: English
• Keywords: SiC-ZrN composites, EDM, reciprocating sliding, high temperature wear
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Publication date: 01.01.2025
• Year: 2024
• Number of pages: 12 str.
• Numbering: Vol. 45, iss. 3, art. 117040
• PID: 20.500.12556/RUL-168163
• UDC: 539.4
• ISSN on article: 0955-2219
• DOI: 10.1016/j.jeurceramsoc.2024.117040
• COBISS.SI-ID: 216864003
• Publication date in RUL: 01.04.2025

Record is a part of a journal

• Title: Journal of the European ceramic society
• Shortened title: J. Eur. Ceram. Soc.
• Publisher: Elsevier
• ISSN: 0955-2219
• COBISS.SI-ID: 6342151

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: Science and engineering research board, India
• Project number: CRG/2021/004948
• Name: /

• Funder: Other - Other funder or multiple funders
• Funding programme: Ministrstvo za izobraževanje, znanost in šport
• Project number: BIL-STIP-08/21
• Name: /