Nanoscale Imaging of CaCu3Ti4O12 Dielectric Properties: The Role of Surface Defects

Scanning probe microscopy with conductive tips has been used to image the dielectric properties of ceramics with giant permittivity. In particular, measurements in impedance mode and of local resistivity allowed to image the permittivity map on polycrystalline materials. Such imaging allows to correlate the dielectric properties with the local sample structure and with defects inside the single grains of the polycrystalline ceramics. However, artifacts due to surface imperfections should be distinguished from bulk properties and eliminated.

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Nanoscale Imaging of CaCu3Ti4O12 Dielectric Properties: The Role of Surface Defects

Solid State Phenomena - Gettering and Defect Engineering in Semiconductor Technology XII ◽

10.4028/3-908451-43-4.443 ◽

2007 ◽

pp. 443-448

Author(s):

Vito Raineri ◽

Patrick Fiorenza ◽

Raffaella Lo Nigro ◽

Derek C. Sinclair

Keyword(s):

Dielectric Properties ◽

Surface Defects ◽

Nanoscale Imaging

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The Role of Scanning Probe Microscopy in Drug Delivery Research

Critical Reviews in Therapeutic Drug Carrier Systems ◽

10.1615/critrevtherdrugcarriersyst.v13.i3-4.20 ◽

1996 ◽

Vol 13 (3-4) ◽

pp. 225-256 ◽

Cited By ~ 8

Author(s):

Kevin M. Shakesheff ◽

Martyn C. Davies ◽

Clive J. Roberts ◽

Saul J. B. Tendler ◽

Philip M. Williams

Keyword(s):

Drug Delivery ◽

Scanning Probe Microscopy ◽

Scanning Probe ◽

Probe Microscopy

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Modeling the Role of the Buildup of Magnetic Charges in Low Anisotropy Polycrystalline Materials

IEEE Transactions on Magnetics ◽

10.1109/tmag.2018.2832294 ◽

2018 ◽

Vol 54 (11) ◽

pp. 1-5

Author(s):

Hatem Elbidweihy ◽

Anthony S. Arrott ◽

Virgil Provenzano

Keyword(s):

Polycrystalline Materials

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Machine Learning Analysis of Microwave Dielectric Properties for Seven Structure Types: The Role of the Processing and Composition

Journal of Physics and Chemistry of Solids ◽

10.1016/j.jpcs.2021.110178 ◽

2021 ◽

pp. 110178

Author(s):

Natalia Kireeva ◽

Vitaly P. Solov’ev

Keyword(s):

Machine Learning ◽

Dielectric Properties ◽

Microwave Dielectric Properties ◽

Microwave Dielectric ◽

Learning Analysis

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INFLUENCE OF La2O3 ADDITIONS ON CHEMICAL DURABILITY AND DIELECTRIC PROPERTIES OF BOROALUMINOSILICATE GLASSES

Surface Review and Letters ◽

10.1142/s0218625x1250062x ◽

2012 ◽

Vol 19 (06) ◽

pp. 1250062 ◽

Cited By ~ 3

Author(s):

X. H. ZHANG ◽

Y. L. YUE ◽

H. T. WU

Keyword(s):

Dielectric Properties ◽

Chemical Durability ◽

Tangent Loss ◽

Frequency Range ◽

Scanning Calorimetry ◽

Glass Transition Temperatures ◽

Weight Losses ◽

Quenching Method ◽

Scanning Electron

Boroaluminosilicate glasses containing La2O3 were prepared by the normal quenching method. The glass transition temperatures (Tg) were measured by differential scanning calorimetry (DSC). The structural role of RO was investigated by nuclear magnetic resonance (NMR). Chemical durability was evaluated by weight losses of glass samples after immersion in HC1 solution. High resolution scanning electron microscopy (HR-SEM) was used to examine the surface micrographs of corroded glass samples. The dielectric constant and tangent loss were measured in the frequency range 10–106 Hz. The results revealed that chemical durability and dielectric properties increased with increasing La2O3 content.

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