Allotropic strengthening and in situ phase transformations during ultra-high-temperature flexure of bulk tantalum nitride

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:826

Article

Demirskyi, D.^1,2  Vasylkiv, O.²  Yoshimi, K.³ 

[1] Tohoku Univ, WPI Adv Inst Mat Res WPI AIMR, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[2] Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

[3] Tohoku Univ, Dept Mat Sci & Engn, Aoba Ku, 6-6-02 Aramaki Aza, Sendai, Miyagi 9808579, Japan

关键词: Binary phase diagram;    Flexural strength;    Toughness;    High-temperature materials;   

DOI  :  10.1016/j.msea.2021.141954

来源: Elsevier

【 摘 要 】

TaN samples were prepared using the spark plasma sintering at 1800 degrees C. Samples consisted of cubic tantalum nitride with the lattice parameter of a = 4.338 angstrom. The formation of hexagonal and cubic (a = 4.44 angstrom) TaN phases in situ during the flexural tests was analyzed using X-ray diffraction.

【 授权许可】

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