MICROMECHANICS OF MULTIFILAMENTARY SUPERCONDUCTING COMPOSITES

被引：7

作者：

COGAN, SF ^{[1
]}

HOLMES, DS ^{[1
]}

PUFFER, IM ^{[1
]}

EAGAR, TW ^{[1
]}

ROSE, RM ^{[1
]}

机构：

[1] MIT,CTR PLASMA FUS,CAMBRIDGE,MA 02139

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1979年 / 15卷 / 01期

关键词：

D O I：

10.1109/TMAG.1979.1060125

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The mechanical properties of multifilamentary Nb3Sn composites depend on several interrelated effects. The elastic modulus is influenced by crystallographic texturing as well as internal stresses. The textures as they develop in the as-drawn composite are typical of FCC and BCC metals, as is the oblate filament shape of the Nb filaments, which can be understood in terms of the orientation restriction of slip systems in such materials. Jc versus strain measurements on a 12.25% Nb composite with 1.2 micron diameter filaments show that zero strain Jc’s are obtainable well beyond 1.0% strain on the first cycle. However, the internal residual stresses are relieved by applied strains well below 1% and subsequent Jc vs. strain performance is markedly impaired. The possible advantages of ultrafine filament composites are discussed. © 1979 IEEE

引用

页码：684 / 686

页数：3

共 8 条

[1]

DEIS DW, 1977, 7TH P S ENG PROBL FU

[2]

Griffith A.A., 1921, PHILOS T R SOC LOND, V221, P163, DOI DOI 10.1098/RSTA.1921.0006

[3] THE DEFORMATION AND AGEING OF MILD STEEL .3. DISCUSSION OF RESULTS [J].