Diffusive transport parameters and surface rate constants of deuterium in Incoloy 800

被引：28

作者：

Esteban, GA ^{[1
]}

Perujo, A

Sedano, LA

Legarda, F

Mancinelli, B

Douglas, K

机构：

[1] EHU, UPV, ETSIIT, Dept Nucl Engn & Fluid Mech, Bilbao 48013, Spain

[2] Commiss European Communities, Inst Environm, Joint Res Ctr, I-21020 Ispra, Italy

[3] CIEMAT, Dept Impacto Ambiental Energia, E-28040 Madrid, Spain

来源：

JOURNAL OF NUCLEAR MATERIALS | 2002年 / 300卷 / 01期

关键词：

D O I：

10.1016/S0022-3115(01)00715-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A gas permeation technique has been used to obtain the complete set of deuterium transport parameters in Incoloy 800 with deuterium driving pressures ranging from 10(4) to 1.5 x 10(5) Pa and temperatures from 427 to 780 K. The deuterium diffusive transport parameters obtained are: D (m(2)s(-1)) = 3.87 x 10(7) exp(-47.8 (kJmol(-1))/RT), K-s (molm(-3)Pa(-1/2)) = 0.102exp(-7.8 (kJmol-')/RT), Phi (mol m (1) s(-1)Pa(-1:2)) = 3.94 x 10(-8)exp(-55.6 (kJmol (1))/RT). The deuterium surface rate constants for a non-oxidized surface has been evaluated as: sigmak(1) (mol m (2)s(-1) Pa-1) = 2.67 x 10(-10)exp(-40.1 (kJmol(-1))/RT), sigmak(2) (mol(-1) m(4)s(-1)) = 2.58 x 10(-8)exp(-24.5 (kJmol(-1))/RT), and for an oxidized surface: (sigmak(1))' (molm(-2) s(-1) Pa (1)) = 4.14 x 10-(6)exp(-44.3 (kJmol(-1))/RT), (sigmak(2))' (mol (1)m(4)s(-1)) = 4.00 x 10(-4) exp(-28.6 (kJmol(-1))/RT). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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