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논문 기본정보
Addition effects of nanoscale NiO on microstructure and superconducting properties of MgB2
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Progress in superconductivity and cryogenics : PSAC |
| ISSN | 1229-3008,2287-6251 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Ranot, Mahipal,Jang, S.H.,Oh, Y.S.,Shinde, K.P.,Kang, S.H.,Chung, K.C. |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | We have investigated the addition effect of NiO magnetic nanoparticles on crystal structure, microstructure as well as superconducting properties of $M gB_2$ . NiO-added $MgB_2$ samples were prepared by the solid-state reaction method. The superconducting transition temperature ( $T_c$ ) of 37.91 K was obtained for pure $MgB_2$ , and $T_c$ was found to decrease systematically on increasing the addition level of NiO. X-ray diffraction (XRD) analysis revealed that no substitution of Ni for Mg in the lattice of $MgB_2$ was occurred. The microstructural analysis shows that the pure $MgB_2$ sample consists of plate shape $MgB_2$ grains, and the grains get refined to smaller size with the addition of NiO nanoparticles. At 5 K, high values of critical current density ( $J_c$ ) were obtained for small amount NiO-added $MgB_2$ samples as compared to pure sample. The enhancement in $J_c$ could be attributed to the refinement of $MgB_2$ grains which leads to high density of grain boundaries in NiO-added $MgB_2$ samples. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201611962637422 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
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| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | lt,TEX gt,$MgB_2$ lt,/TEX gt,. nanoscale NiO,superconducting properties |