DISPERSOID STABILITY IN A CU-AL2O3 ALLOY UNDER ENERGETIC CASCADE DAMAGE CONDITIONS

被引：22

作者：

ZINKLE, SJ

HORSEWELL, A

SINGH, BN

SOMMER, WF

机构：

[1] RISO NATL LAB, DEPT MAT, DK-4000 ROSKILDE, DENMARK

[2] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 195卷 / 1-2期

关键词：

D O I：

10.1016/0022-3115(92)90357-Q

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A commercial dispersion-strengthened Cu-Al2O3 alloy was irradiated with 750-MeV protons at 470 K to a damage level of about 2 displacements per atom (dpa). The density and size distribution of the Al2O3 particles was measured in nonirradiated and irradiated specimens using transmission electron microscopy. The mean primary knock-on atom (PKA) energy for 750-MeV protons in copper is 2.5 MeV, which is about 10 and 100 times higher than the average PKA energies in copper for fusion and fission neutrons, respectively. The irradiation caused only a slight decrease in the mean Al2O3 size, from 10.5 nm to 8.3 nm, and a slight decrease in the particle density from 4 X 10(22)/m3 to 3 x 10(22)/m3.

引用

页码：11 / 16

页数：6

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