Microstructural and nanoindentation study of TaN incorporated ZrB2 and ZrB2-SiC ceramics

被引：6

作者：

Delbari, Seyed Ali ^{[1
]}

Namini, Abbas Sabahi ^{[1
]}

Lee, Seonyong ^{[2
]}

Jung, Sunghoon ^{[3
]}

Wang, Jinghan ^{[2
]}

Lee, Sea-Hoon ^{[4
]}

Cha, Joo Hwan ^{[5
]}

Cho, Jin Hyuk ^{[6
]}

Jang, Ho Won ^{[2
]}

Kim, Soo Young ^{[6
]}

Shokouhimehr, Mohammadreza ^{[2
]}

机构：

[1] Univ Mohaghegh Ardabili, Fac Adv Technol, Dept Engn Sci, Ardebil, Iran

[2] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 08826, South Korea

[3] Korea Inst Mat Sci, Adv Nano Surface Dept, Chang Won 51508, South Korea

[4] Korea Inst Mat Sci, Div Powder Ceram Res, Chang Won 51508, South Korea

[5] Korea Inst Sci & Technol, Innovat Enterprise Cooperat Ctr, Hwarangro 14 Gil, Seoul, South Korea

[6] Korea Univ, Inst Green Mfg Technol, Dept Mat Sci & Engn, 145 Anam Ro, Seoul 02841, South Korea

来源：

SCIENTIFIC REPORTS | 2022年 / 12卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

YOUNGS MODULUS; BEHAVIOR; HARDNESS; PHASE; OPTIMIZATION; FABRICATION; PARAMETERS; POWDERS; DESIGN;

D O I：

10.1038/s41598-022-17797-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This study assessed the sinterability and microstructure of ZrB2-SiC-TaN and ZrB2-TaN ceramics. Spark plasma sintering at 2000 degrees C and 30 MPa for 5 min produced both ceramics. The relative density of ZrB2 ceramic containing TaN was 95.3%; the addition of SiC increased this value to 98.1%. SiC's contribution to the elimination of ZrB2 surface oxides was the primary factor in the advancement of densification. The in situ formation of hexagonal boron nitride at the interface of TaN and ZrB2 was confirmed by high-resolution transmission electron microscopy, field emission-electron probe microanalyzer, X-ray diffractometry, and field emission scanning electron microscopy. Moreover, the in situ graphite might be produced as a byproduct of the SiC-SiO2 process, hence boosting the reduction of oxide compounds in the ternary system. The SiC compound had the highest hardness (29 +/- 3 GPa), while the ZrB2/TaN interface exhibited the greatest values of elastic modulus (473 +/- 26 GPa) and stiffness (0.76 +/- 0.13 mN/nm).

引用

页数：11

共 43 条

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