The effect of hot forging on the thermal and mechanical properties of spark plasma sintered SiC-TiB2-B4C Composites with CeO2 Addition

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2024-12-23 DOI:10.1016/j.jeurceramsoc.2024.117169

A. Furkan Buluc , Elif Celikkardes , Servet Turan , Hyoung-jun Kim , Young-Wook Kim

{"title":"The effect of hot forging on the thermal and mechanical properties of spark plasma sintered SiC-TiB2-B4C Composites with CeO2 Addition","authors":"A. Furkan Buluc , Elif Celikkardes , Servet Turan , Hyoung-jun Kim , Young-Wook Kim","doi":"10.1016/j.jeurceramsoc.2024.117169","DOIUrl":null,"url":null,"abstract":"<div><div>Sintering of SiC-TiB<sub>2</sub>-B<sub>4</sub>C composite was carried out by SPS at 1900°C and hot forging was applied at 2050 °C to improve mechanical and thermal properties. A fully dense ceramic, with density of 3.08 g/cm<sup>3</sup> was obtained after SPS and the properties of the composite improved after hot forging. During SPS sintering, TiB<sub>2</sub> and graphite phases were in-situ formed consuming all TiC. Very strong orientation of graphite, coarsening of grain size and reduction in both liquid phase and porosities were observed after hot forging. While fracture toughness increased without compromising hardness and flexural strength, the thermal conductivity was doubled depending on the orientation of the in-situ formed graphite after hot forging. The hardness, fracture toughness, thermal conductivity, elastic modulus and density of the sintered and hot forged composites were measured as 32.2–32.8 GPa, 4.0–4.4 MPa.m<sup>1/2</sup>, 27.8–58.1 W‧m<sup>−1</sup>‧K<sup>−1</sup>, 280–315 GPa and 3.12–3.08 g/cm<sup>3</sup> respectively.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 6","pages":"Article 117169"},"PeriodicalIF":5.8000,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The European Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0955221924010422","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

Sintering of SiC-TiB₂-B₄C composite was carried out by SPS at 1900°C and hot forging was applied at 2050 °C to improve mechanical and thermal properties. A fully dense ceramic, with density of 3.08 g/cm³ was obtained after SPS and the properties of the composite improved after hot forging. During SPS sintering, TiB₂ and graphite phases were in-situ formed consuming all TiC. Very strong orientation of graphite, coarsening of grain size and reduction in both liquid phase and porosities were observed after hot forging. While fracture toughness increased without compromising hardness and flexural strength, the thermal conductivity was doubled depending on the orientation of the in-situ formed graphite after hot forging. The hardness, fracture toughness, thermal conductivity, elastic modulus and density of the sintered and hot forged composites were measured as 32.2–32.8 GPa, 4.0–4.4 MPa.m^1/2, 27.8–58.1 W‧m⁻¹‧K⁻¹, 280–315 GPa and 3.12–3.08 g/cm³ respectively.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.