Preparation of Ti3SiC2-based diamond composites by Ni-Al assisted self-propagating reaction of Ti-SiC-C system in microwave field

被引：0

作者：

Yang, Mian ^{[1
]}

Chen, Kaihua ^{[1
]}

Guo, Shenghui ^{[1
,2
]}

Hou, Ming ^{[1
]}

Gao, Jiyun ^{[1
,3
]}

Zhou, Junwen ^{[1
]}

Shi, Shuhao ^{[1
]}

Yang, Li ^{[1
,2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, State Int Joint Res Ctr Adv Technol Superhard Mat, State Key Lab Complex Nonferrous Met Resources Cle, Kunming 650093, Peoples R China

[3] Yunnan Minzu Univ, Sch Chem & Environm, Kunming 650500, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 07期

关键词：

Microwave pressureless sintering; Ti3SiC2; Ni-Al alloy; Ceramic grinding wheel; HIGH-TEMPERATURE SYNTHESIS; MAX PHASES; POWDER; MECHANISMS; BEHAVIOR; ALLOY;

D O I：

10.1016/j.ceramint.2023.12.404

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 this paper, the self-propagating reaction of the Ti-SiC-C system for synthesising Ti3SiC2-based diamond composites is ignited by the combustion of Ni-Al alloy powders in a microwave field. The heating curves of Ni-Al-assisted microwave sintering show that the self-propagating reaction could be successfully ignited after heating samples to 685.2 degrees C in a microwave field for 456 s. This finding indicates that ignition could occur at temperatures below the diamond graphitisation temperature (727 degrees C). X-ray diffraction analysis indicates that the sintered samples primarily comprise Ti3SiC2, TiC, Ti5Si3 and C. Scanning electron microscopy coupled with energy dispersive spectroscopy observations demonstrates that the diamond grains are tightly bonded with the surrounding matrix and are intact. The best wear ratio of 302.26 was obtained for the Ti3SiC2-bonded diamond composite when the diamond grain size was 140/170 mesh and the molar ratio of Ti, SiC and C was 3:1.1:0.9.

引用

页码：10881 / 10888

页数：8

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