|本期目录/Table of Contents|

[1]阚厚才,陈建军,陈浩.超快高温烧结碳化硅陶瓷的微结构与力学性能研究[J].浙江理工大学学报,2026,55-56(自科五):638-647.
　KAN Houcai,CHEN Jianjun,CHEN Hao.A study on the microstructure and mechanical properties of SiC ceramics prepared by ultrafast high-temperature sintering[J].Journal of Zhejiang Sci-Tech University,2026,55-56(自科五):638-647.
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超快高温烧结碳化硅陶瓷的微结构与力学性能研究()

浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
55-56
期数:
2026年自科第五期
页码:
638-647
栏目:
出版日期:
2026-09-20

文章信息/Info

Title:
A study on the microstructure and mechanical properties of SiC ceramics prepared by ultrafast high-temperature sintering
文章编号:
1673-3851(2026) 09-0638-10
作者:
阚厚才; 陈建军; 陈浩
浙江理工大学材料科学与工程学院 ,杭州 310018
Author(s):
KAN Houcai;  CHEN Jianjun;  CHEN Hao
School of Materials Science& Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
碳化硅; 超快高温烧结; 致密化机理; 微观结构 ; 力学性能
分类号:
TB321
文献标志码:
A
摘要:
为实现碳化硅(SiC)陶瓷的快速制备 , 以 α-SiC粉体为原料 ,Y2O3 和 Al2O3 为烧结助剂 ,采用超快高温烧结技术(UHS) ,在 5 min内实现了 SiC陶瓷的致密化;研究了烧结电流与保温时间对 SiC陶瓷的微结构与力学性能的影响 。结果表明 :UHS技术凭借高达 1000 ℃/min的升温速率驱动液相快速形成 ,通过颗粒重排与溶解-沉淀机制促进了材料致密化 ,并有效抑制了 晶粒粗化 。随着烧结电流的增加和保温时间的延长 ,SiC陶瓷的相对密度显著提高 ,其断裂模式由沿晶断裂转变为穿晶断裂 。在烧结电流 130A、保温时间 240 s的最优工艺条件下 ,所制备的SiC陶瓷相对密度≥95% , 晶粒尺寸控制在 1.60~1.70μm;SiC陶瓷展现出优异的力学性能 ,其维氏硬度和断裂韧性分别达到 24.58GPa和 4.88MPa·m1/2 。该研究提出的超快高温烧结技术大幅缩短了 SiC陶瓷的制备周期 ,为高性能 SiC陶瓷的低成本、规模化生产提供了理论依据和实验参考。

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备注/Memo

备注/Memo:
收稿日期 : 2026-02-08 网络出版日期 : 2026-05-09基金项目 : 国家自然科学基金项目(51872262)作者简介 : 阚厚才(2001— ) ,男 ,山东泰安人 ,硕士研究生 ,主要从事 SiC陶瓷及复合材料方面的研究。通信作者: 陈建军,E-mail:chen@zstu. edu. cn
更新日期/Last Update: 2026-09-21