Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound

Nasri A. Hamid, N. F. Shamsudin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The Bi 2Sr 2CaCu 2O 8 (Bi-2212) high-temperature ceramic superconductor has the potential to be applied in power system applications due to its low thermal conductivity. However due to the material's brittle nature and low strength, reinforcement of the Bi-2212 superconductor is necessary for such applications. Due to its high melting point and lower heat capacity, magnesium oxide (MgO) is an excellent candidate as the reinforcement material. In this study, 3% to 8% weight percentage of nanosize MgO powder was added to Bi-2212 superconductor. The Bi-2212/MgO compounds were palletized and heat treated, followed by partial melting and slow-cooling. X-ray diffraction (XRD) was used to study the phases present in the samples. Scanning electron microscopy (SEM) with energy dispersive X-ray (EDAX) analysis was performed to investigate the microstructure, and for identifying the elemental composition of the samples. Electrical resistance and critical current density (J c) measurements were carried out using the standard four-probe dc method. The degree of texturing of the microstructure was determined using the texture coefficient calculations. In addition, the mechanical strength of the samples was studied by conducting compression test. The results show that the addition of small amount of MgO particles has improved the texture of the Bi-2212/MgO compound. The compound with 5% MgO addition shows significantly higher strength. Addition of higher than 8% of MgO has resulted in highly porous microstructure and subsequently decreasing the strength of the Bi-2212/MgO compound.

Original languageEnglish
Title of host publicationAdvancement of Materials and Nanotechnology II
Pages387-392
Number of pages6
DOIs
Publication statusPublished - 06 Nov 2012
Event2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010 - Kuala Lumpur, Malaysia
Duration: 29 Nov 201001 Dec 2010

Publication series

NameAdvanced Materials Research
Volume545
ISSN (Print)1022-6680

Other

Other2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010
CountryMalaysia
CityKuala Lumpur
Period29/11/1001/12/10

Fingerprint

Magnesia
Superconducting materials
Strength of materials
Textures
Microstructure
Reinforcement
Ceramic superconductors
Acoustic impedance
High temperature superconductors
Texturing
Brittleness
Specific heat
Melting point
Energy dispersive spectroscopy
Thermal conductivity
Melting
Cooling
Powders
X ray diffraction
X rays

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

A. Hamid, N., & Shamsudin, N. F. (2012). Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound. In Advancement of Materials and Nanotechnology II (pp. 387-392). (Advanced Materials Research; Vol. 545). https://doi.org/10.4028/www.scientific.net/AMR.545.387
A. Hamid, Nasri ; Shamsudin, N. F. / Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound. Advancement of Materials and Nanotechnology II. 2012. pp. 387-392 (Advanced Materials Research).
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abstract = "The Bi 2Sr 2CaCu 2O 8 (Bi-2212) high-temperature ceramic superconductor has the potential to be applied in power system applications due to its low thermal conductivity. However due to the material's brittle nature and low strength, reinforcement of the Bi-2212 superconductor is necessary for such applications. Due to its high melting point and lower heat capacity, magnesium oxide (MgO) is an excellent candidate as the reinforcement material. In this study, 3{\%} to 8{\%} weight percentage of nanosize MgO powder was added to Bi-2212 superconductor. The Bi-2212/MgO compounds were palletized and heat treated, followed by partial melting and slow-cooling. X-ray diffraction (XRD) was used to study the phases present in the samples. Scanning electron microscopy (SEM) with energy dispersive X-ray (EDAX) analysis was performed to investigate the microstructure, and for identifying the elemental composition of the samples. Electrical resistance and critical current density (J c) measurements were carried out using the standard four-probe dc method. The degree of texturing of the microstructure was determined using the texture coefficient calculations. In addition, the mechanical strength of the samples was studied by conducting compression test. The results show that the addition of small amount of MgO particles has improved the texture of the Bi-2212/MgO compound. The compound with 5{\%} MgO addition shows significantly higher strength. Addition of higher than 8{\%} of MgO has resulted in highly porous microstructure and subsequently decreasing the strength of the Bi-2212/MgO compound.",
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A. Hamid, N & Shamsudin, NF 2012, Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound. in Advancement of Materials and Nanotechnology II. Advanced Materials Research, vol. 545, pp. 387-392, 2nd International Conference on the Advancement of Materials and Nanotechnology, ICAMN II 2010, Kuala Lumpur, Malaysia, 29/11/10. https://doi.org/10.4028/www.scientific.net/AMR.545.387

Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound. / A. Hamid, Nasri; Shamsudin, N. F.

Advancement of Materials and Nanotechnology II. 2012. p. 387-392 (Advanced Materials Research; Vol. 545).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The Bi 2Sr 2CaCu 2O 8 (Bi-2212) high-temperature ceramic superconductor has the potential to be applied in power system applications due to its low thermal conductivity. However due to the material's brittle nature and low strength, reinforcement of the Bi-2212 superconductor is necessary for such applications. Due to its high melting point and lower heat capacity, magnesium oxide (MgO) is an excellent candidate as the reinforcement material. In this study, 3% to 8% weight percentage of nanosize MgO powder was added to Bi-2212 superconductor. The Bi-2212/MgO compounds were palletized and heat treated, followed by partial melting and slow-cooling. X-ray diffraction (XRD) was used to study the phases present in the samples. Scanning electron microscopy (SEM) with energy dispersive X-ray (EDAX) analysis was performed to investigate the microstructure, and for identifying the elemental composition of the samples. Electrical resistance and critical current density (J c) measurements were carried out using the standard four-probe dc method. The degree of texturing of the microstructure was determined using the texture coefficient calculations. In addition, the mechanical strength of the samples was studied by conducting compression test. The results show that the addition of small amount of MgO particles has improved the texture of the Bi-2212/MgO compound. The compound with 5% MgO addition shows significantly higher strength. Addition of higher than 8% of MgO has resulted in highly porous microstructure and subsequently decreasing the strength of the Bi-2212/MgO compound.

AB - The Bi 2Sr 2CaCu 2O 8 (Bi-2212) high-temperature ceramic superconductor has the potential to be applied in power system applications due to its low thermal conductivity. However due to the material's brittle nature and low strength, reinforcement of the Bi-2212 superconductor is necessary for such applications. Due to its high melting point and lower heat capacity, magnesium oxide (MgO) is an excellent candidate as the reinforcement material. In this study, 3% to 8% weight percentage of nanosize MgO powder was added to Bi-2212 superconductor. The Bi-2212/MgO compounds were palletized and heat treated, followed by partial melting and slow-cooling. X-ray diffraction (XRD) was used to study the phases present in the samples. Scanning electron microscopy (SEM) with energy dispersive X-ray (EDAX) analysis was performed to investigate the microstructure, and for identifying the elemental composition of the samples. Electrical resistance and critical current density (J c) measurements were carried out using the standard four-probe dc method. The degree of texturing of the microstructure was determined using the texture coefficient calculations. In addition, the mechanical strength of the samples was studied by conducting compression test. The results show that the addition of small amount of MgO particles has improved the texture of the Bi-2212/MgO compound. The compound with 5% MgO addition shows significantly higher strength. Addition of higher than 8% of MgO has resulted in highly porous microstructure and subsequently decreasing the strength of the Bi-2212/MgO compound.

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BT - Advancement of Materials and Nanotechnology II

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A. Hamid N, Shamsudin NF. Effect of nanosize MgO addition on the texture and mechanical strength of Bi-2212 superconductor compound. In Advancement of Materials and Nanotechnology II. 2012. p. 387-392. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.545.387