Near net-shape manufacturing of metal sheathed superconductors by high energy rate forming techniques

被引：16

作者：

Mamalis, AG ^{[1
]}

Szalay, A

Gobl, N

Vajda, I

Raveau, B

机构：

[1] NTUA, Mfg Technol Div, Athens, Greece

[2] Metalltech Ltd, Budapest, Hungary

[3] TU Budapest, Dept Elect Machines & Dr, Budapest, Hungary

[4] Lab CRISMAT, Caen, France

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1998年 / 53卷 / 1-2期

关键词：

metal sheathed high-T-c superconductors; YBCO powder; dynamic processing; explosive compaction; electromagnetic compaction; HERF techniques;

D O I：

10.1016/S0921-5107(98)00114-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High energy rate forming 'powder-in-tube' techniques were employed for near net-shape manufacturing of axisymmetric metal/superconducting YBCO ceramic compound billets for applications in the electrical industry. The dynamic techniques employed were explosive and electromagnetic compaction. The macro- and microscopic integrity of the components and the effect of the compaction process on the superconducting properties were examined. The density, microstructure and superconducting properties of the resulting ceramic are influenced significantly by the shockwaves generated from the dynamic processing and a comparison is made between the two compaction processes employed. Critical temperatures of 92 and 94 K were obtained for the explosively and electromagnetically compacted billets, respectively. Such high energy rate forming techniques are of potential industrial interest for manufacturing superconducting components. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：119 / 124

页数：6

共 9 条

[1]

GOBL N, 1997, P EURODYMAT 97 C TOL

[2]

Mamalis A. G., 1996, Proceedings of the 10th Anniversary HTS Workshop on Physics, Materials and Applications, P631

[3]

Mamalis A G, 1989, CIRP ANN-MANUF TECHN, V38, P297

[4] Net shape manufacturing of silver-sheathed high-T-c superconductive ceramic (Y-Ba-K-Cu-O) strip by explosive compaction cladding and rolling [J].