Preparation of the Superconducting Oxides Magnetic Shielding by Using the Electrophoretic Deposition Method
Preparation of the Superconducting Oxides Magnetic Shielding by Using the Electrophoretic Deposition Method
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电泳沉积法制备超导氧化物磁屏蔽
DOI：
10.2109/jcersj.104.819
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Yoshinori Takayama
中科院分区：
文献类型：
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作者：
N. Koura;A. Taniguchi;H. Shoji;S. Ito;Yoshinori Takayama
研究了用电泳法制备高T_c超导磁屏蔽材料。将焙烧的YBCO粉末悬浮在丙酮浴中，并沉积在银、不锈钢、陶瓷和坡莫合金的各种圆柱形衬底上。沉积氧化物颗粒的样品在920℃下烧结1h，然后在500℃下退火1h。在77K下测量了磁衰减率(Hin/Hex)。所有以银、不锈钢、陶瓷或坡莫合金为衬底的样品都能屏蔽至少0.5Oe的环境磁性。在直径15 mm、长30 mm的银片上制作的磁屏蔽体，在7.6Oe时的衰减率为5.1×10-4。
The preparation of high-Tc superconducting magnetic shielding by the electrophoretic deposition method has been investigated. The calcined YBCO powder was suspended in an acetone bath, and was deposited on various cylindrical substrates of silver, stainless steel, ceramics and permalloy. The sample deposited with oxides particles was sintered at 920°C for 1h, and then annealed at 500°C for 1h. The magnetic attenuation ratio (Hin/Hex) was measured at 77K. All samples with silver, stainless steel, ceramics, or permalloy substrate were able to shield the ambient magnetism (0.5Oe) at least. The magnetic shield on a silver substrate with the diameter of 15mm and length of 30mm had the attenuation ratio of 5.1×10-4 at 7.6Oe.