Effect of Al2O3-CeO2 molar ratio on mechanical properties of SiC ceramics

被引：3

作者：

Chang, Chao ^{[1
]}

Liu, Yang ^{[1
]}

Guo, Wei-Ming ^{[1
]}

Long, Ying ^{[1
]}

Duan, Xiao-Ming ^{[2
]}

Jia, De-Chang ^{[2
]}

Lin, Hua-Tay ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Electromech Engn, Guangdong Prov Key Lab Minimally Invas Surg Instru, Guangzhou 510006, Guangdong, Peoples R China

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ceramic composite; Molar ratio of Al 2 O 3 to CeO 2; Mechanical properties; Microstructure; RARE-EARTH-OXIDES; LIQUID-PHASE; TEMPERATURE; DENSIFICATION; ADDITIVES; BEHAVIOR; Y2O3;

D O I：

10.1016/j.ceramint.2023.11.247

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, SiC ceramic samples with Al2O3 and CeO2 sintering additives were prepared by spark plasma sintering (SPS). The effects of Al2O3 to CeO2 molar ratio from 6.25:3.75 to 5:5, 4:6 and 3:7 on sintering behavior, microstructure, Vickers hardness, and fracture toughness of the SiC ceramic samples were investigated and compared. The results showed that, the relative density of SiC ceramic samples increased from 97.8% to 99.2%, and the Vickers hardness increased from 19.72 +/- 0.41 GPa to 21.18 +/- 0.92 GPa as the CeO2 molar ratio increased. The increase in CeO2 molar ratio effectively improved the densification and hardness of SiC ceramics.

引用

页码：5032 / 5037

页数：6

共 25 条

[1] Effects of mechanically alloying Al2O3 and Y2O3 additives on the liquid phase sintering behavior and properties of SiC
Chen, Ruoyu
Bratten, Adam
Rittenhouse, Joshua
Wen, Haiming
[J]. CERAMICS INTERNATIONAL, 2022, 48 (21) : 31679 - 31685
[2] Effect of Rare-Earth Oxides Additive on Liquid Phase Sintered SiC
Chen Yuhong
Jiang Liang
Zhang Lili
Huang Zhenkun
Wu Laner
[J]. HIGH-PERFORMANCE CERAMICS VIII, 2014, 602-603 : 407 - 411
[3] Thermodynamic aspects of liquid phase sintering of SiC using Al2O3 and Y2O3
Cupid, Damian M.
Fabrichnaya, Olga
Seifert, Hans J.
[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2007, 98 (10) : 976 - 986
[4] FRACTURE TOUGHNESS DETERMINATIONS BY INDENTATION
EVANS, AG
CHARLES, EA
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1976, 59 (7-8) : 371 - 372
[5] Effect of additives on selective laser sintering of silicon carbide
Ghaltaghchyan, Tsovinar
Khachatryan, Hayk
Asatryan, Karine
Rstakyan, Viktorya
Aghayan, Marina
[J]. BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, 2023, 62 (06): : 504 - 514
[6] Densitication of SiC by SPS-effects of time, temperature and pressure
Guillard, Francois
Allemand, Alexandre
Lulewicz, Jean-Daniel
Galy, Jean
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (07) : 2725 - 2728
[7] Sintering behavior, microstructure and mechanical properties of silicon carbide ceramics containing different nano-TiN additive
Guo, Xingzhong
Yang, Hui
Zhang, Lingjie
Zhu, Xiaoyi
[J]. CERAMICS INTERNATIONAL, 2010, 36 (01) : 161 - 165
[8] Progress and challenges towards additive manufacturing of SiC ceramic
He, Rujie
Zhou, Niping
Zhang, Keqiang
Zhang, Xueqin
Zhang, Lu
Wang, Wenqing
Fang, Daining
[J]. JOURNAL OF ADVANCED CERAMICS, 2021, 10 (04) : 637 - 674
[9] Thermal conductivity of liquid-phase sintered silicon carbide ceramics: A review
Kim, Hyun-Sik
Kim, Young-Wook
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2023, 43 (09) : 3855 - 3874
[10] DENSIFICATION DURING SINTERING IN THE PRESENCE OF A LIQUID PHASE .1. THEORY
KINGERY, WD
[J]. JOURNAL OF APPLIED PHYSICS, 1959, 30 (03) : 301 - 306

← 1 2 3 →