Chemical erosion by deuterium impact on carbon films doped with nanometer-sized carbide crystallites

被引：8

作者：

Balden, M. ^{[1
]}

Adelhehn, C. ^{[1
]}

Pardo, E. de Juan ^{[1
]}

Roth, J. ^{[1
]}

机构：

[1] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 363卷 / 1-3期

关键词：

amorphous films; carbon-based materials; chemical erosion; erosion and deposition; hydrocarbons;

D O I：

10.1016/j.jnucmat.2007.01.188

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The erosion by 30 and 200 eV/D at temperatures between 300 and 1100 K was investigated for magnetron-sputtered films, consisting of carbon and metal (2-7 at.% W, Ti, Zr) present as nanometer-sized carbide crystallites. The total erosion yield was determined from weight-loss measurements and film thickness changes measured by RBS. The chemical erosion yield was obtained from the CD4 signal of mass spectrometry. The total erosion yield of doped films is reduced by a factor of 3-20 compared to pure C films. The CD4 production yield decreases less implying that the distribution of the chemically eroded species was changed by the dopants. Therefore, measuring only CD4 production or its spectroscopic signature could yield to misleading values and interpretations. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1173 / 1178

页数：6

共 19 条

[1]

ADELHELM C, MRS SPRING M 29 MAY

[2]

ADELHELM C, IN PRESS MAT SCI E C

[3] ITER status, design and material objectives [J].

Aymar, R .

JOURNAL OF NUCLEAR MATERIALS, 2002, 307 :1-9

[4] Metal-doped carbon films obtained by magnetron sputtering [J].

Balden, M ;

Cieciwa, BT ;

Quintana, I ;

Pardo, ED ;

Koch, F ;

Sikora, M ;

Dubiel, B .

SURFACE & COATINGS TECHNOLOGY, 2005, 200 (1-4) :413-417

[5] Deuterium-induced chemical erosion of carbon-metal layers [J].

Balden, M ;

Pardo, ED ;

Quintana, I ;

Cieciwa, B ;

Roth, J .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :980-984

[6] Chemical erosion of atomically dispersed doped hydrocarbon layers by deuterium [J].

Balden, M ;

Roth, J ;

Pardo, ED ;

Wiltner, A .

JOURNAL OF NUCLEAR MATERIALS, 2003, 313 :348-353

[7] Overview on the effects of dopants on chemical erosion and RES of carbon-based materials [J].

Balden, M .

PHYSICA SCRIPTA, 1999, T81 :64-69

[8] New weight-loss measurements of the chemical erosion yields of carbon materials under hydrogen ion bombardment [J].

Balden, M ;

Roth, J .

JOURNAL OF NUCLEAR MATERIALS, 2000, 280 (01) :39-44

[9]

BALDEN M, IN PRESS J NUCL MAT

[10]

ECKSTEIN W, 1993, 982 IPP MAX PLANCK I

← 1 2 →