Spatially resolved analytical electron microscopy at grain boundaries of α-Al2O3

被引：0

作者：

Nufer, S ^{[1
]}

Marinopoulos, AG ^{[1
]}

Elsässer, C ^{[1
]}

Kurtz, W ^{[1
]}

Rühle, M ^{[1
]}

机构：

[1] Max Planck Inst Met Res, D-70174 Stuttgart, Germany

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2002年 / 18卷 / 02期

关键词：

grain boundaries; alumina (alpha-Al2O3); local density function theory (LDFT); electron energy loss spectroscopy (EELS);

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work the electronic structure and the impurity excess of the basal and rhombohedral twin grain boundaries are investigated, using electron energy loss spectroscopy (EELS) and energy dispersive X-ray spectroscopy (EDXS). The measurability of electronic structures of the twin grain boundaries are discussed by comparing theoretical density of states (DOS) from bulk material with interfacial DOS, obtained from local density functional theory (LDFT) calculations.

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页码：189 / 190

页数：2

相关论文

共 11 条

[1] SPATIALLY-RESOLVED ELECTRON-ENERGY-LOSS NEAR-EDGE STRUCTURE-ANALYSIS OF A NEAR SIGMA=11 TILT BOUNDARY IN SAPPHIRE [J].

BRULEY, J .

MICROSCOPY MICROANALYSIS MICROSTRUCTURES, 1993, 4 (01) :23-39

[2] Density-functional modelling of core-hole effects in electron energy-loss near-edge spectra [J].

Elsässer, C ;

Köstlmeier, S .

ULTRAMICROSCOPY, 2001, 86 (3-4) :325-337

[3]

FINNIS MW, 1993, MAT SCI TECHNOLOGY, pCH9

[4] SOLID-STATE BONDING OF ACCURATELY ORIENTED METAL CERAMIC BICRYSTALS IN ULTRAHIGH-VACUUM [J].

FISCHMEISTER, HF ;

ELSSNER, G ;

GIBBESCH, B ;

KADOW, KH ;

KAWA, F ;

KORN, D ;

MADER, W ;

TURWITT, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1993, 64 (01) :234-242

[5] Ab initio calculation of near-edge structures in electron-energy-loss spectra for metal-oxide crystals [J].

Köstlmeier, S ;

Elsässer, C .

PHYSICAL REVIEW B, 1999, 60 (20) :14025-14034

[6] Interfacial structures and energetics of basal twins in α-Al2O3:: First-principles density-functional and empirical calculations -: art. no. 165112 [J].

Marinopoulos, AG ;

Nufer, S ;

Elsässer, C .

PHYSICAL REVIEW B, 2001, 63 (16)

[7] Microscopic structure and bonding at the rhombohedral twin interface in α-Al2O3 [J].

Marinopoulos, AG ;

Elsässer, C .

ACTA MATERIALIA, 2000, 48 (18-19) :4375-4386

[8] Quantitative atomic-scale analysis of interface structures:: Transmission electron microscopy and local density functional theory [J].

Nufer, S ;

Marinopoulos, AG ;

Gemming, T ;

Elsässer, C ;

Kurtz, W ;

Köstlmeier, S ;

Rühle, M .

PHYSICAL REVIEW LETTERS, 2001, 86 (22) :5066-5069

[9]

NUFER S, 2000, P 12 EUREM BRNO CZEC, P107

[10]

NUFER S, 2001, THESIS U STUTTGART