FATIGUE CRAZE INITIATION IN POLYCARBONATE - STUDY BY SMALL-ANGLE X-RAY-SCATTERING

被引：19

作者：

HRISTOV, HA

YEE, AF

XIE, L

GIDLEY, DW

机构：

[1] UNIV MICHIGAN,DEPT MAT SCI & ENGN,ANN ARBOR,MI 48109

[2] UNIV MICHIGAN,DEPT PHYS,ANN ARBOR,MI 48109

来源：

POLYMER | 1994年 / 35卷 / 20期

关键词：

FATIGUE CRAZE INITIATION; POLYCARBONATE; SMALL-ANGLE X-RAY SCATTERING;

D O I：

10.1016/0032-3861(94)90084-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The structural changes that occur during the incubation stage of tensile fatigue failure of glassy polycarbonate are investigated by means of small-angle X-ray scattering. The results are interpreted as the formation of voids, or 'proto-crazes', with initial dimensions of similar to 60nm and 150-200 nm in directions parallel and perpendicular to the load axis, respectively. These values are in the range expected for a void in a static equilibrium, and practically coincide with the initial void dimensions measured in glassy polymers stretched under monotonic loading.

引用

页码：4287 / 4292

页数：6

共 24 条

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Kausch H.H., 1987, POLYM FRACTURE, Vsecond

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