抄録
The solid solution formation and consolidation of the (Ta,Zr,Nb)C single-phase ceramic made from commercial TaC, ZrC and NbC powders prepared by spark plasma sintering at the temperature of 1920 °C was investigated. Phase analysis and lattice parameter measurements by X-ray diffraction showed multi-stage formation of the single-phase high-entropy-type carbide with the lattice parameter of 4.535 Å. The flexural strength and fracture toughness at room temperature were 460 ± 24 MPa and 2.9 MPa m 1/2 , respectively. With an increase in temperature, the flexural strength showed an increase up to 1600 °C to 496 ± 44 MPa, then decreased after 1800 °C to 366 ± 46 MPa.
本文言語 | English |
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ページ(範囲) | 12-16 |
ページ数 | 5 |
ジャーナル | Scripta Materialia |
巻 | 164 |
DOI | |
出版ステータス | Published - 2019 4月 15 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料科学(全般)
- 凝縮系物理学
- 材料力学
- 機械工学
- 金属および合金