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1

Digitale Medien

Electron acoustic imaging of BaTiO3 single crystals (1996)

Zhang, B. Y. ; Jiang, F. M. ; Yang, Y. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 80 (1996), S. 1916-1918

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Scanning electron acoustic microscopy (SEAM) has been used in the observation of ferroelectric domain configurations in barium titanate single crystals. The contribution to the image contrasts is related to signal generation through a piezoelectric coupling mechanism. The results prove that SEAM really has the ability to show not only the surface shape and domain structures but also the subsurface domain structures. Furthermore, SEAM is a convenient, fast and nondestructive way of observing the ferroelectric domains compared with other methods. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.363008

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2

Digitale Medien

Scanning electron-acoustic imaging of residual stress distributions in aluminum metal and ZrSiO4 multiphase ceramics (1997)

Zhang, B. Y. ; Jiang, F. M. ; Shi, Y. ; [weitere]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 70 (1997), S. 589-591

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The scanning electron-acoustic imaging technique has been used in the characterization of the residual stress field distributions existing in the subsurface in aluminum disks and 20 vol % SiC ( w)/ZrSiO4 multiphase ceramics left by Vicker's indentation. The experimental results reveal that the distribution areas are the plastic-elastic interchange zones. The electron-acoustic signal generation mechanism in the samples are discussed. © 1997 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.118283

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3

Digitale Medien

Scanning electron acoustic microscopy for the evaluation of domain structures in BaTiO3 single crystal and ceramics (1998)

Liu, X. X. ; Balk, L. J. ; Zhang, B. Y. ; [weitere]

Springer

Journal of materials science 33 (1998), S. 4543-4549

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ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: Abstract As a non-destructive and subsurface detecting technique, the scanning electron acoustic microscopy (SEAM) method has been applied to study the ferrodomain structures in ferroelectric BaTiO3 single crystal and ceramics. The domain arrangements and the orientations of domain walls at different geometry structures in the BaTiO3 single crystal, and the relationships of domain structures with surface grains in the BaTiO3 ceramics, have been discussed by analysing the experimental results obtained at different operation conditions. The distributions of electron acoustic signals with modulation frequencies up to 1 MHz have been obtained. The relationship of the electron acoustic signal with incident electron energy has also been studied. Although the thermal wave coupling mechanism makes a certain contribution to the acoustic signal generations, the image contrast of ferrodomains is dominated by differences in the electrical properties of ferroelectric materials. © 1998 Kluwer Academic Publishers

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1004460504231

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4

Digitale Medien

Acoustic microscopy of ferroelectric ceramics (1982)

Yin, Q. R. ; Ilett, C. ; Briggs, G. A. D.

Springer

Journal of materials science 17 (1982), S. 2449-2452

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ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: Abstract Ferroelectric ceramics have been observed in an acoustic microscope. The images demonstrate the ability of the microscope to image elastic properties and to penetrate opaque layers.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00543758

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