Fracture toughness of SmBaCuO bulk superconductors at cryogenic temperatures

Yasuhiro Yoshino; Akira Iwabuchi; Naoki Takahashi; Kazumune Katagiri; Koshichi Noto; Naomichi Sakai; Masato Murakami

doi:10.1109/TASC.2004.830438

Fracture toughness of SmBaCuO bulk superconductors at cryogenic temperatures

Yasuhiro Yoshino, Akira Iwabuchi, Naoki Takahashi, Kazumune Katagiri, Koshichi Noto, Naomichi Sakai, Masato Murakami

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

Fracture toughness of Sm123 bulk superconductors with 16.7 and 28.6 mol% of Sm211 particles have been investigated by Vickers hardness test at cryogenic temperatures. The hardness test was carried out on (001) plane for two types of SmBCO bulk materials during 40-293 K. The hardness of Sm17 became constant to 5,000 MPa during 40-293 K. However, the hardness of Sm29 increased to 7,380 MPa with decreasing temperatures. In addition, fracture toughness of Sm17 and Sm29 will be discussed calculating from Vickers hardness, Median crack length, Young's modulus and applied load. The fracture toughness of Sm17 became constant to 0.8 MPa√m following the hardness property. The fracture toughness of Sm29 decreased from 0.73 MPa√m at 293 K to 0.67 MPa√m at 40 K.

本文言語	English
ページ（範囲）	1118-1121
ページ数	4
ジャーナル	IEEE Transactions on Applied Superconductivity
巻	14
号	2
DOI	https://doi.org/10.1109/TASC.2004.830438
出版ステータス	Published - 2004 6 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

文献へのアクセス

10.1109/TASC.2004.830438

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引用スタイル

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title = "Fracture toughness of SmBaCuO bulk superconductors at cryogenic temperatures",

abstract = "Fracture toughness of Sm123 bulk superconductors with 16.7 and 28.6 mol% of Sm211 particles have been investigated by Vickers hardness test at cryogenic temperatures. The hardness test was carried out on (001) plane for two types of SmBCO bulk materials during 40-293 K. The hardness of Sm17 became constant to 5,000 MPa during 40-293 K. However, the hardness of Sm29 increased to 7,380 MPa with decreasing temperatures. In addition, fracture toughness of Sm17 and Sm29 will be discussed calculating from Vickers hardness, Median crack length, Young's modulus and applied load. The fracture toughness of Sm17 became constant to 0.8 MPa√m following the hardness property. The fracture toughness of Sm29 decreased from 0.73 MPa√m at 293 K to 0.67 MPa√m at 40 K.",

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AU - Yoshino, Yasuhiro

AU - Iwabuchi, Akira

AU - Takahashi, Naoki

AU - Katagiri, Kazumune

AU - Noto, Koshichi

AU - Sakai, Naomichi

AU - Murakami, Masato

PY - 2004/6/1

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N2 - Fracture toughness of Sm123 bulk superconductors with 16.7 and 28.6 mol% of Sm211 particles have been investigated by Vickers hardness test at cryogenic temperatures. The hardness test was carried out on (001) plane for two types of SmBCO bulk materials during 40-293 K. The hardness of Sm17 became constant to 5,000 MPa during 40-293 K. However, the hardness of Sm29 increased to 7,380 MPa with decreasing temperatures. In addition, fracture toughness of Sm17 and Sm29 will be discussed calculating from Vickers hardness, Median crack length, Young's modulus and applied load. The fracture toughness of Sm17 became constant to 0.8 MPa√m following the hardness property. The fracture toughness of Sm29 decreased from 0.73 MPa√m at 293 K to 0.67 MPa√m at 40 K.

AB - Fracture toughness of Sm123 bulk superconductors with 16.7 and 28.6 mol% of Sm211 particles have been investigated by Vickers hardness test at cryogenic temperatures. The hardness test was carried out on (001) plane for two types of SmBCO bulk materials during 40-293 K. The hardness of Sm17 became constant to 5,000 MPa during 40-293 K. However, the hardness of Sm29 increased to 7,380 MPa with decreasing temperatures. In addition, fracture toughness of Sm17 and Sm29 will be discussed calculating from Vickers hardness, Median crack length, Young's modulus and applied load. The fracture toughness of Sm17 became constant to 0.8 MPa√m following the hardness property. The fracture toughness of Sm29 decreased from 0.73 MPa√m at 293 K to 0.67 MPa√m at 40 K.

KW - Cryogenic temperatures

KW - Deformation mechanism

KW - Fracture toughness

KW - Vickers hardness

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