Abstract
Careful investigations on a series of the MgB{sub 2} phases quenched at different sintering temperatures during fabrication process have been carried out, and important information is obtained, by the X-ray diffraction (XRD), the scanning electron microscopy (SEM) images, and the temperature dependent magnetization (M-T) measurements. The particle sizes of the raw magnesium and boron powders are on the order of 0.1 mm and 1 {mu}m, respectively. Three stages in the formation of the polycrystalline MgB{sub 2} phase are identified in different sintering temperature ranges according to the corresponding superconducting properties and the crystallization conditions. The MgB{sub 2} phase first appears in a microscopic scale at about 530 deg. C according to the M-T measurement. Then, the MgB{sub 2} phase forms macroscopically within a narrow temperature range from 653 to 660 deg. C, while the residual raw materials of the magnesium and boron components persist to the temperature of 700 deg. C. The optimum sintering temperature range for the MgB{sub 2} phase to form is determined from 750 to 900 deg. C.
Citation Formats
Qingrong, Feng, Chinping, Chen, Jun, Xu, Lingwen, Kong, Xin, Chen, Yongzhong, Wang, Yan, Zhang, and Zhengxiang, Gao.
Study on the formation of MgB{sub 2} phase.
Netherlands: N. p.,
2004.
Web.
doi:10.1016/j.physc.2004.05.016.
Qingrong, Feng, Chinping, Chen, Jun, Xu, Lingwen, Kong, Xin, Chen, Yongzhong, Wang, Yan, Zhang, & Zhengxiang, Gao.
Study on the formation of MgB{sub 2} phase.
Netherlands.
https://doi.org/10.1016/j.physc.2004.05.016
Qingrong, Feng, Chinping, Chen, Jun, Xu, Lingwen, Kong, Xin, Chen, Yongzhong, Wang, Yan, Zhang, and Zhengxiang, Gao.
2004.
"Study on the formation of MgB{sub 2} phase."
Netherlands.
https://doi.org/10.1016/j.physc.2004.05.016.
@misc{etde_20618436,
title = {Study on the formation of MgB{sub 2} phase}
author = {Qingrong, Feng, Chinping, Chen, Jun, Xu, Lingwen, Kong, Xin, Chen, Yongzhong, Wang, Yan, Zhang, and Zhengxiang, Gao}
abstractNote = {Careful investigations on a series of the MgB{sub 2} phases quenched at different sintering temperatures during fabrication process have been carried out, and important information is obtained, by the X-ray diffraction (XRD), the scanning electron microscopy (SEM) images, and the temperature dependent magnetization (M-T) measurements. The particle sizes of the raw magnesium and boron powders are on the order of 0.1 mm and 1 {mu}m, respectively. Three stages in the formation of the polycrystalline MgB{sub 2} phase are identified in different sintering temperature ranges according to the corresponding superconducting properties and the crystallization conditions. The MgB{sub 2} phase first appears in a microscopic scale at about 530 deg. C according to the M-T measurement. Then, the MgB{sub 2} phase forms macroscopically within a narrow temperature range from 653 to 660 deg. C, while the residual raw materials of the magnesium and boron components persist to the temperature of 700 deg. C. The optimum sintering temperature range for the MgB{sub 2} phase to form is determined from 750 to 900 deg. C.}
doi = {10.1016/j.physc.2004.05.016}
journal = []
issue = {1-2}
volume = {411}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Sep}
}
title = {Study on the formation of MgB{sub 2} phase}
author = {Qingrong, Feng, Chinping, Chen, Jun, Xu, Lingwen, Kong, Xin, Chen, Yongzhong, Wang, Yan, Zhang, and Zhengxiang, Gao}
abstractNote = {Careful investigations on a series of the MgB{sub 2} phases quenched at different sintering temperatures during fabrication process have been carried out, and important information is obtained, by the X-ray diffraction (XRD), the scanning electron microscopy (SEM) images, and the temperature dependent magnetization (M-T) measurements. The particle sizes of the raw magnesium and boron powders are on the order of 0.1 mm and 1 {mu}m, respectively. Three stages in the formation of the polycrystalline MgB{sub 2} phase are identified in different sintering temperature ranges according to the corresponding superconducting properties and the crystallization conditions. The MgB{sub 2} phase first appears in a microscopic scale at about 530 deg. C according to the M-T measurement. Then, the MgB{sub 2} phase forms macroscopically within a narrow temperature range from 653 to 660 deg. C, while the residual raw materials of the magnesium and boron components persist to the temperature of 700 deg. C. The optimum sintering temperature range for the MgB{sub 2} phase to form is determined from 750 to 900 deg. C.}
doi = {10.1016/j.physc.2004.05.016}
journal = []
issue = {1-2}
volume = {411}
journal type = {AC}
place = {Netherlands}
year = {2004}
month = {Sep}
}