Fracture toughness of YBa2Cu3O7-x superconductor containing Y2BaCuO5 and Ag prepared by MPMG process

Tohru Nakaya; Tetsuo Shoji

Fracture toughness of YBa₂Cu₃O_7-x superconductor containing Y₂BaCuO₅ and Ag prepared by MPMG process

Tohru Nakaya, Tetsuo Shoji

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Conference article › peer-review

Abstract

High Tc superconducting materials have been receiving great concern as a potential advanced material in packaging technology. Superconductivity and superior heat conductivity may play an important rule in advanced packaging technology in future. However, several engineering problems have to be solved before possible application of these advanced materials. Among them are the mechanical properties of high Tc YBa₂Cu₃O_7-x (YBCO) ceramics. In this paper, toughness improvement of YBCO was investigated by making composite YBCO with Y₂BaCuO₅ and Ag by the melt powder melt growth (MPMG) process. Ag particles were added to reduce the cracks initiated in the matrix during this process without decreasing the superconducting property of the YBCO compound. Addition of 10 wt% Ag and 20 mol% Y₂BaCuO₅ yielded a YBCO composite with a K_IC of 2.87 MPa√ m and a critical current density (J_C) measured by the four-probe method of more than 600 A/cm².

Original language	English
Pages (from-to)	39-45
Number of pages	7
Journal	American Society of Mechanical Engineers, Applied Mechanics Division, AMD
Volume	193
Publication status	Published - 1994 Dec 1
Event	Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA Duration: 1994 Nov 6 → 1994 Nov 11

ASJC Scopus subject areas

Mechanical Engineering

Cite this

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title = "Fracture toughness of YBa2Cu3O7-x superconductor containing Y2BaCuO5 and Ag prepared by MPMG process",

abstract = "High Tc superconducting materials have been receiving great concern as a potential advanced material in packaging technology. Superconductivity and superior heat conductivity may play an important rule in advanced packaging technology in future. However, several engineering problems have to be solved before possible application of these advanced materials. Among them are the mechanical properties of high Tc YBa2Cu3O7-x (YBCO) ceramics. In this paper, toughness improvement of YBCO was investigated by making composite YBCO with Y2BaCuO5 and Ag by the melt powder melt growth (MPMG) process. Ag particles were added to reduce the cracks initiated in the matrix during this process without decreasing the superconducting property of the YBCO compound. Addition of 10 wt% Ag and 20 mol% Y2BaCuO5 yielded a YBCO composite with a KIC of 2.87 MPa√ m and a critical current density (JC) measured by the four-probe method of more than 600 A/cm2.",

author = "Tohru Nakaya and Tetsuo Shoji",

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language = "English",

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AU - Nakaya, Tohru

AU - Shoji, Tetsuo

PY - 1994/12/1

Y1 - 1994/12/1

N2 - High Tc superconducting materials have been receiving great concern as a potential advanced material in packaging technology. Superconductivity and superior heat conductivity may play an important rule in advanced packaging technology in future. However, several engineering problems have to be solved before possible application of these advanced materials. Among them are the mechanical properties of high Tc YBa2Cu3O7-x (YBCO) ceramics. In this paper, toughness improvement of YBCO was investigated by making composite YBCO with Y2BaCuO5 and Ag by the melt powder melt growth (MPMG) process. Ag particles were added to reduce the cracks initiated in the matrix during this process without decreasing the superconducting property of the YBCO compound. Addition of 10 wt% Ag and 20 mol% Y2BaCuO5 yielded a YBCO composite with a KIC of 2.87 MPa√ m and a critical current density (JC) measured by the four-probe method of more than 600 A/cm2.

AB - High Tc superconducting materials have been receiving great concern as a potential advanced material in packaging technology. Superconductivity and superior heat conductivity may play an important rule in advanced packaging technology in future. However, several engineering problems have to be solved before possible application of these advanced materials. Among them are the mechanical properties of high Tc YBa2Cu3O7-x (YBCO) ceramics. In this paper, toughness improvement of YBCO was investigated by making composite YBCO with Y2BaCuO5 and Ag by the melt powder melt growth (MPMG) process. Ag particles were added to reduce the cracks initiated in the matrix during this process without decreasing the superconducting property of the YBCO compound. Addition of 10 wt% Ag and 20 mol% Y2BaCuO5 yielded a YBCO composite with a KIC of 2.87 MPa√ m and a critical current density (JC) measured by the four-probe method of more than 600 A/cm2.

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ER -

Fracture toughness of YBa₂Cu₃O_7-x superconductor containing Y₂BaCuO₅ and Ag prepared by MPMG process

Abstract

ASJC Scopus subject areas

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