ELASTIC-CONSTANTS AND MICROCRACKS IN YBA2CU3O7

被引：15

作者：

SHINDO, Y

LEDBETTER, H

NOZAKI, H

机构：

[1] NATL INST STAND & TECHNOL,MAT SCI & ENGN LAB,BOULDER,CO 80303

[2] TOKYO NATL COLL TECHNOL,DEPT MECH ENGN,HACHIOJI 193,JAPAN

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 01期

关键词：

D O I：

10.1557/JMR.1995.0007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze theoretically the effect of microcracks and voids on the apparent elastic constants of polycrystalline YBa2Cu3O7. Using measurements by Holcomb and Mayo, we calculate crack density and crack aspect ratio. We obtain reasonable intrinsic elastic constants. For the bulk modulus, for example, we predict values close to these obtained by neutron-diffraction studies: 123 GPa for a polycrystal and 122 GPa for a monocrystal.

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页码：7 / 10

页数：4

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