EFFECTS OF MATERIAL PROCESSING IN HIGH-TEMPERATURE SUPERCONDUCTING MAGNETIC BEARINGS

被引：17

作者：

MCMICHAEL, CK

MA, KB

LIN, MW

LAMB, MA

MENG, RL

XUE, YY

HOR, PH

CHU, WK

机构：

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 19期

关键词：

D O I：

10.1063/1.105989

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A study of the levitation forces related to superconducting bearing design was conducted on free-sintered and melt-textured Y1Ba2CU3O7-delta-(YBCO) materials. Comparisons were made between free sintered, variously oriented, and randomly oriented melt-textured materials. Magnetic force measurements were also conducted on oriented YBCO before and after neutron irradiation. A magnetic bearing of new design utilizing the phenomenon of flux pinning was then fabricated using melt-textured YBCO with permanent magnets and a speed of 135 000 rpm was achieved. Rotational dissipation and magnetic stiffness measurements were performed on the bearing prototype.

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页码：2442 / 2444

页数：3

相关论文

共 10 条

[1] FRICTION IN LEVITATED SUPERCONDUCTORS [J].

BRANDT, EH .

APPLIED PHYSICS LETTERS, 1988, 53 (16) :1554-1556

[2] LEVITATION EFFECTS INVOLVING HIGH-TC THALLIUM BASED SUPERCONDUCTORS [J].

HARTER, WG ;

HERMANN, AM ;

SHENG, ZZ .

APPLIED PHYSICS LETTERS, 1988, 53 (12) :1119-1121

[3]

HOR PH, 1990, MOD PHYS LETT B, V703, P4

[4]

HULL JR, 1990, 25TH INT EN CONV ENG, V3, P432

[5] SPONTANEOUS AND PERSISTENT ROTATION OF CYLINDRICAL MAGNETS LEVITATED BY Y-BA-CU-O SUPERCONDUCTORS [J].

MA, KB ;

LIU, JR ;

MCMICHAEL, C ;

BRUCE, R ;

MIMS, D ;

CHU, WK .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (07) :3961-3963

[6] MANUFACTURE OF BULK SUPERCONDUCTING YBA2CU3O7-DELTA BY A CONTINUOUS PROCESS [J].

MENG, RL ;

KINALIDIS, C ;

SUN, YY ;

GAO, L ;

TAO, YK ;

HOR, PH ;

CHU, CW .

NATURE, 1990, 345 (6273) :326-328

[7] HIGH-SPEED ROTATION OF MAGNETS ON HIGH-TC SUPERCONDUCTING BEARINGS [J].

MOON, FC ;

CHANG, PZ .

APPLIED PHYSICS LETTERS, 1990, 56 (04) :397-399

[8] HYSTERETIC LEVITATION FORCES IN SUPERCONDUCTING CERAMICS [J].

MOON, FC ;

YANOVIAK, MM ;

WARE, R .

APPLIED PHYSICS LETTERS, 1988, 52 (18) :1534-1536

[9] LARGE LEVITATION FORCE DUE TO FLUX PINNING IN YBACUO SUPERCONDUCTORS FABRICATED BY MELT-POWDER-MELT-GROWTH PROCESS [J].

MURAKAMI, M ;

OYAMA, T ;

FUJIMOTO, H ;

TAGUCHI, T ;

GOTOH, S ;

SHIOHARA, Y ;

KOSHIZUKA, N ;

TANAKA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (11) :L1991-L1994

[10] MAGNETIC BEARINGS USING HIGH-TEMPERATURE SUPERCONDUCTORS - SOME PRACTICAL CONSIDERATIONS [J].

WEINBERGER, BR ;

LYNDS, L ;

HULL, JR .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1990, 3 (07) :381-388