Fabrication of in-situ Ti(C,N) phase toughened Al2O3 based ceramics from natural bauxite

被引：15

作者：

Li, Ziyan ^{[1
]}

Fu, Lvping ^{[1
,2
,3
]}

Gu, Huazhi ^{[1
]}

Or, Siu Wing ^{[2
]}

Huang, Ao ^{[1
]}

Lv, Renxiang ^{[3
]}

机构：

[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China

[2] Hong Kong Polytech Univ, Dept Elect Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China

[3] Jinan Ludong Refractories Co Ltd, Jinan 250109, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 18期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Toughening; Bauxite; Mechanical properties; Ti(C; N); Al2O3  based ceramic; MECHANICAL-PROPERTIES; CARBOTHERMAL REDUCTION; MICROSTRUCTURE; TICN; NITRIDATION; COMPOSITE; PRESSURE; GRAPHENE; COATINGS; BEHAVIOR;

D O I：

10.1016/j.ceramint.2021.05.273

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：

Al2O3-Ti(C,N) ceramics were fabricated via carbothermal reduction nitridation method with high-titania specialgrade bauxite as the raw material. The formation mechanism of in-situ Ti(C,N) phase and its effect on the properties of materials are discussed. After nitrided at 1700 degrees C, Ti(C,N) phase could be formed in-situ with appropriate C/TiO2 molar ratio. Due to the residual stress field formed by Ti(C,N) particles, the path of crack propagation is changed, leading to the crack deflection and pinning. Therefore, the mechanical properties of the materials are improved by forming in-situ Ti(C,N) phase. With a C/TiO2 molar ratio of 2.2 and nitridation temperature of 1700 degrees C, Al2O3-Ti(C,N) ceramic with a hardness of 13.9 GPa, a fracture toughness of 8.28 MPa m1/2 and a flexural strength of 387 MPa could be fabricated.

引用

页码：25497 / 25504

页数：8

共 50 条

[31] Microstructure and mechanical properties of in situ synthesized Ti2AlC/Al2O3 composites
Zhu, Jianfeng
Ye, Lan
He, Liuhua
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 547 : 6 - 11
[32] Fabrication of porous Al2TiO5-Al2O3 ceramics using Al2O3 hollow spheres coated with TiO2 sol
Zhao, Jialiang
Li, Jinlian
Zhang, Xiaofang
Luo, Xudong
Li, JiJia
Qi, Xin
Man, Yiran
Lin, Rui
Xie, Zhipeng
CERAMICS INTERNATIONAL, 2022, 48 (19) : 27349 - 27359
[33] Preparation and performance of MAX phase Ti3AlC2 by in-situ reaction of Ti-Al-C system
Gao, Lina
Han, Ting
Guo, Zhaolong
Zhang, Xin
Pan, Deng
Zhou, Shengyin
Chen, Wenge
Li, Shufeng
ADVANCED POWDER TECHNOLOGY, 2020, 31 (08) : 3533 - 3539
[34] Microstructure of in-situ Al2O3/Al composites
Ji, Y
Zhong, TX
Wang, Y
Tang, JH
Xu, XD
JOURNAL OF TRACE AND MICROPROBE TECHNIQUES, 1997, 15 (04): : 489 - 492
[35] Formation of Ti3AlC2/Al2O3 and Ti2AlC/Al2O3 composites by combustion synthesis in Ti-Al-C-TiO2 systems
Yeh, C. L.
Kuo, C. W.
Chu, Y. C.
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 494 (1-2) : 132 - 136
[36] Synthesis and Mechanical Characterization of a Ti(C,N)/Mo-Co-Ni/CaF2@Al2O3 Self-Lubricating Cermet
Li, Chuanhao
Yi, Mingdong
Wei, Gaofeng
Xu, Chonghai
MATERIALS, 2019, 12 (23)
[37] Sintering behaviour and microstructures of Ti(Al,O)/Al2O3, Ti3Al(O)/Al2O3 and TiAl(O)/Al2O3 in situ composites
Cai, ZH
Zhang, DL
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 419 (1-2): : 310 - 317
[38] Synthesis, microstructure and mechanical properties of (Ti,W)3AlC2/Al2O3 composites by in situ reactive hot pressing
Yang, Chenhui
Wang, Fen
Zhu, Jianfeng
Jiang, Hao
Ai, Taotao
Xiao, Dan
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 610 : 154 - 160
[39] Synthesis of Al2O3/TiAl In situ Composites from Ti-Al-TiO2-Cr-V2O5
Zhang, Kun
Wang, Fen
Zhu, Jianfeng
ECO-MATERIALS PROCESSING AND DESIGN XIII, 2012, 724 : 447 - 450
[40] In-situ formation of Al2O3/Al core-shell from waste material: Production of porous composite improved by graphene
Zawrah, M. F.
Taha, Mohammed A.
Mostafa, H. Abo
CERAMICS INTERNATIONAL, 2018, 44 (09) : 10693 - 10699

← 1 2 3 4 5 →