EFFECT OF NEUTRON-IRRADIATION ON SINGLE-CRYSTAL VSI-3 - NEUTRON-DIFFRACTION STUDIES

被引：18

作者：

COX, DE

TARVIN, JA

机构：

来源：

PHYSICAL REVIEW B | 1978年 / 18卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.18.22

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Elastic and inelastic neutron-diffraction measurements have been made on a single crystal of V3Si as a function of fast-neutron irradiation. After irradiation to a fluence of 22.2×1018 n/cm2 (E>1 MeV), refinement of the Bragg intensity data reveals a slight decrease in the long-range-order parameter to a value of about 0.9, and an increase in the average value of the mean-square displacement at low temperature of about 0.001 2. Inelastic-scattering measurements show that the softening of the transverse-acoustical mode associated with the martensitic transition is absent in the irradiated crystal. © 1978 The American Physical Society.

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页码：22 / 29

页数：8

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