Ultrafast high-temperature sintering of ZrB2

被引：4

作者：

Mondal, Santanu ^{[1
]}

Lombard, Juan Diego Shiraishi ^{[1
,2
]}

Gollapudi, Sreenivasulu ^{[1
]}

Tallon, Carolina ^{[1
,2
]}

Li, Jie-Fang ^{[1
]}

Viehland, Dwight ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Mat Sci & Engn, Blacksburg, VA 24060 USA

[2] Virginia Polytech Inst & State Univ, Adv Mfg Team, Blacksburg, VA 24060 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2024年 / 107卷 / 01期

关键词：

borides; grain growth; microstructure; sinter/sintering; ultrahigh-temperature ceramics; ZIRCONIUM; CERAMICS;

D O I：

10.1111/jace.19445

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：

Ultrafast high-temperature sintering (UHS) is a joule heating method with an extremely high heating rate (similar to 10(3)-10(4)degrees C/min). In this work, commercial ZrB2 powders were rapidly densified by UHS to >90% relative density within 60 s in vacuum without pressure. Bulk density improved from 75% to 93% of relative density by increasing the sintering duration from 10 to 60 s. The final grain size increases from 2.7 +/- 1.1 to 19.0 +/- 8.4 mu m when the sintering time increased from 10 to 60 s. X-ray diffraction and energy-dispersive spectroscopy show crystalline phase and compositional uniformity in ZrB2 after UHS.

引用

页码：11 / 15

页数：5

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