NANOSTRUCTURE DETERMINATION OF A SPLAT-COOLED AND LASER-QUENCHED NB40NI60 ALLOY BY SCANNING TUNNELING MICROSCOPY

被引：9

作者：

SCANDELLA, L ^{[1
]}

STAUFER, U ^{[1
]}

BRODBECK, D ^{[1
]}

REIMANN, P ^{[1
]}

GUNTHERODT, HJ ^{[1
]}

ZEHRINGER, R ^{[1
]}

HAUERT, R ^{[1
]}

MOSER, EM ^{[1
]}

机构：

[1] SWISS FED INST MAT TESTING & RES,CH-8600 DUBENDORF,SWITZERLAND

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 133卷

关键词：

D O I：

10.1016/0921-5093(91)90144-C

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The STM has been used to study the morphologies and nanostructures of splat-cooled and laser-quenched Nb40Ni60 alloys. The experiments are performed under ultra high vacuum at room temperature. On Ar+ ion etched splats, islands 10-20 angstrom in diameter with a maximum corrugation of 4 angstrom can be observed. Atomic-scale features of 3-4 angstrom have been observed. In a few cases nanostructures 30-50 angstrom which contain a fine structure of 3 angstrom dimension are found. These nonostructures could be assigned as nanocrystallites. Laser quenching of amorphous splats results in the formation of distinctly different surface morphologies, also on the scale of 20-30 angstrom and around 10 angstrom in height. The STM has been shown to be an effective tool for characterizing surface structures in amorphous metals.

引用

页码：601 / 605

页数：5

共 28 条

[11] SCANNING TUNNELING MICROSCOPY AND ATOMIC FORCE MICROSCOPY - APPLICATION TO BIOLOGY AND TECHNOLOGY [J].

HANSMA, PK ;

ELINGS, VB ;

MARTI, O ;

BRACKER, CE .

SCIENCE, 1988, 242 (4876) :209-216

[12] ELECTRICAL-RESISTIVITY, MAGNETIC-SUSCEPTIBILITY AND THERMOELECTRIC-POWER OF AMORPHOUS NIOBIUM NICKEL-ALLOYS SYNTHESIZED BY RF-SPUTTERING [J].

ILONCA, G .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1985, 70 (01) :93-97

[13] PREPARATION OF AMORPHOUS NI60NB40 BY MECHANICAL ALLOYING [J].

KOCH, CC ;

CAVIN, OB ;

MCKAMEY, CG ;

SCARBROUGH, JO .

APPLIED PHYSICS LETTERS, 1983, 43 (11) :1017-1019

[14] REAL-SPACE ATOMIC-STRUCTURE OF A 2-DIMENSIONAL DECAGONAL QUASI-CRYSTAL [J].

KORTAN, AR ;

BECKER, RS ;

THIEL, FA ;

CHEN, HS .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :200-203

[15]

KOSTER U, 1981, TOPICS APPLIED PHYSI, V46

[16] SCANNING TUNNELING MICROSCOPE INSTRUMENTATION [J].

KUK, Y ;

SILVERMAN, PJ .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (02) :165-180

[17] NICKEL NIOBIUM ALLOYS OBTAINED BY PICOSECOND PULSED LASER QUENCHING [J].

LIN, CJ ;

SPAEPEN, F .

ACTA METALLURGICA, 1986, 34 (07) :1367-1375

[18]

MYHRA S, 1989, J NONCRYSTALLINE SOL, V99, P244

[19] ION-IMPLANTATION DAMAGE IN AMORPHOUS AND CRYSTALLINE NB40NI60 [J].

RECHTIN, MD ;

VANDERSANDE, J ;

BALDO, PM .

SCRIPTA METALLURGICA, 1978, 12 (07) :639-643

[20] NEW MICROCRYSTALLINE PHASES IN NB-NI AND TA-NI SYSTEMS [J].

RUHL, RC ;

GIESSEN, BC ;

COHEN, M ;

GRANT, NJ .

ACTA METALLURGICA, 1967, 15 (11) :1693-+

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