ELECTRON IRRADIATION AND RECOVERY OF TUNGSTEN

被引：53

作者：

NEELEY, HH

KEEFER, DW

SOSIN, A

机构：

[1] Division of North American Rockwell Corp, Canoga Park, California

[2] Science Center, North American Rockwell Corp, Thousand Oaks, California

[3] University of Utah, Salt Lake City, Utah

来源：

PHYSICA STATUS SOLIDI | 1968年 / 28卷 / 02期

关键词：

D O I：

10.1002/pssb.19680280225

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Damage rates and recovery of 99.99% pure tungsten have been investigated after electron irradiation near 4 °K by means of electrical resistivity. The damage rate data tend to a value of T0 = 38 to 42 eV. The recovery of the residual electrical resistivity shows three major stages: Stage I from 4.2 to 100 °K, Stage II from 100 to 500 °K, Stage III from 500 to 1000 °K. Stage I is dominated by only one major peak at 70 °K. An analysis based on second‐order kinetics yielded a good fit to the data through 95% of the recovery. The energy derived was 0.17 eV. Only ≈ 26% recovery is seen in Stage I and we propose that the suppression is due to interstitial trapping by impurities. Stage III accounts for about 40% recovery of the induced resistivity and has a center temperature of 760 °K. The stage was analysed assuming second‐order kinetics; this analysis gave an energy of 1.1 eV. Copyright © 1968 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：675 / &

共 11 条

[1] THRESHOLD DISPLACEMENT ENERGIES + SUBTHRESHOLD DISPLACEMENTS IN COPPER + GOLD NEAR 10DEGREESK [J].