MAGNETIC-LEVITATION AND STIFFNESS IN MELT-TEXTURED Y-BA-CU-O

被引：24

作者：

HULL, JR

MULCAHY, TM

SALAMA, K

SELVAMANICKAM, V

WEINBERGER, BR

LYNDS, L

机构：

[1] UNIV HOUSTON,TEXAS CTR SUPERCOND,HOUSTON,TX 77004

[2] UNITED TECHNOL RES CTR,E HARTFORD,CT 06108

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 72卷 / 05期

关键词：

D O I：

10.1063/1.351595

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic levitation and stiffness have been measured in several systems composed of a permanent magnet elastically suspended above a stationary melt-textured sample of Y-Ba-Cu-0. The levitation force and vertical stiffness have been calculated on the basis of magnetization measurements of the same system, and the calculated results showed excellent agreement with the experimental measurements. Based on the force and magnetization measurements, it is predicted that the same Y-Ba-Cu-0 material configured in a geometry suitable for magnetic bearings could produce a levitation pressure of 100-400 kPa at 20 K.

引用

收藏

页码：2089 / 2091

页数：3

相关论文

共 17 条

[1] AMPLITUDE DEPENDENCE OF MAGNETIC STIFFNESS IN BULK HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BASINGER, SA ;

HULL, JR ;

MULCAHY, TM .

APPLIED PHYSICS LETTERS, 1990, 57 (27) :2942-2944

[2] FRICTION IN LEVITATED SUPERCONDUCTORS [J].

BRANDT, EH .

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

[3] EFFECT OF SIZE AND GEOMETRY ON LEVITATION FORCE MEASUREMENTS BETWEEN PERMANENT-MAGNETS AND HIGH-TEMPERATURE SUPERCONDUCTORS [J].

CHA, YS ;

HULL, JR ;

MULCAHY, TM ;

ROSSING, TD .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (10) :6504-6506

[4] LEVITATION FORCE AND MAGNETIC STIFFNESS IN BULK HIGH-TEMPERATURE SUPERCONDUCTORS [J].

CHANG, PZ ;

MOON, FC ;

HULL, JR ;

MULCAHY, TM .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :4358-4360

[5] OBSERVATION OF ATTRACTIVE FORCES IN ZONE-MELTED YBA2CU3O7-X [J].

CHEN, WH ;

ZHU, N ;

MCGINN, PJ .

MATERIALS LETTERS, 1990, 9 (5-6) :189-192

[6] LARGE MAGNETIC HYSTERESIS IN A MELT-TEXTURED Y-BA-CU-O SUPERCONDUCTOR [J].

JIN, S ;

SHERWOOD, RC ;

GYORGY, EM ;

TIEFEL, TH ;

VANDOVER, RB ;

NAKAHARA, S ;

SCHNEEMEYER, LF ;

FASTNACHT, RA ;

DAVIS, ME .

APPLIED PHYSICS LETTERS, 1989, 54 (06) :584-586

[7] TEMPERATURE-DEPENDENCE OF LOWER CRITICAL FIELDS IN Y-BA-CU-O CRYSTALS [J].

KRUSINELBAUM, L ;

MALOZEMOFF, AP ;

YESHURUN, Y ;

CRONEMEYER, DC ;

HOLTZBERG, F .

PHYSICAL REVIEW B, 1989, 39 (04) :2936-2939

[8] INDUCTIVE CURRENT MEASUREMENTS IN AN ORIENTED GRAINED YBA2CU3OX SUPERCONDUCTOR [J].

KUPFER, H ;

KELLER, C ;

SALAMA, K ;

SELVAMANICKAM, V .

APPLIED PHYSICS LETTERS, 1989, 55 (18) :1903-1905

[9] LEVITATION FORCES, RELAXATION AND MAGNETIC STIFFNESS OF MELT-QUENCHED YBA2CU3OX [J].

MOON, FC ;

CHANG, PZ ;

HOJAJI, H ;

BARKATT, A ;

THORPE, AN .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (07) :1257-1258

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

MOON, FC ;

CHANG, PZ .

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