High-temperature strength behavior of tantalum diboride to 2000°C

被引：3

作者：

Vasylkiv, Oleg ^{[1
,3
]}

Demirskyi, Dmytro ^{[2
]}

机构：

[1] Natl Inst Mat Sci, Res Ctr Elect & Opt Mat, Tsukuba, Japan

[2] Tohoku Univ, WPI Adv Inst Mat Res WPI AIMR, Sendai, Japan

[3] Natl Inst Mat Sci, Res Ctr Elect & Opt Mat, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2023年 / 106卷 / 11期

关键词：

spark plasma sintering; strength; ultrahigh-temperature ceramics; ZIRCONIUM;

D O I：

10.1111/jace.19307

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：

This study investigated the high-temperature strength of spark plasma sintered tantalum diboride (TaB2) for the first time. TaB2 exhibited a unique elastic fracture behavior below 1900 & DEG;C, unlike other transition metal diborides. The consolidation process involved spark plasma sintering at 2000-2200 & DEG;C yielding dense TaB2 samples. The flexural strength was measured at elevated temperatures up to 2000 & DEG;C, showing a quite high flexural strength of 400 & PLUSMN; 20 MPa at 1900 & DEG;C. These findings provide valuable insights into the high-temperature behavior of TaB2, highlighting its potential for advanced applications.

引用

页码：6385 / 6389

页数：5

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