ChemInform Abstract: Electrical Conductivity in Transparent ZnGa2O4: Reduction and Surface-Layer Structure Transformation.

ChemInform ◽  
2010 ◽  
Vol 29 (21) ◽  
pp. no-no
Author(s):  
Z. YAN ◽  
H. TAKEI ◽  
H. KAWAZOE
Keyword(s):  
Electrical Conductivity ◽  
Surface Layer ◽  
Layer Structure ◽  
Structure Transformation

scholarly journals Preparation and Properties of Layered SiC-Graphene Composites for EDM

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2916
Author(s):  
Ondrej Hanzel ◽  
Zoltán Lenčéš ◽  
Peter Tatarko ◽  
Richard Sedlák ◽  
Ivo Dlouhý ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Layer ◽  
Positive Influence ◽  
Layered Composite ◽  
Layered Composites ◽  
Good Adhesion ◽  
Electric Discharge Machining ◽  
Layer Sequence ◽  
The Individual ◽  
Scratch Tests

Three and five-layered silicon carbide-based composites containing 0, 5, and 15 wt.% of graphene nanoplatelets (GNPs) were prepared with the aim to obtain a sufficiently high electrical conductivity in the surface layer suitable for electric discharge machining (EDM). The layer sequence in the asymmetric three-layered composites was SiC/SiC-5GNPs/SiC-15GNPs, while in the symmetric five-layered composite, the order of layers was SiC-15GNPs/SiC-5GNPs/SiC/SiC-5GNPs/SiC-15GNPs. The layered samples were prepared by rapid hot-pressing (RHP) applying various pressures, and it was shown that for the preparation of dense 3- or 5-layered SiC/GNPs composites, at least 30 MPa of the applied load was required during sintering. The electrical conductivity of 3-layered and 5-layered composites increased significantly with increasing sintering pressure when measured on the SiC surface layer containing 15 wt.% of GNPs. The increasing GNPs content had a positive influence on the electrical conductivity of individual layers, while their instrumented hardness and elastic modulus decreased. The scratch tests confirmed that the materials consisted of well-defined layers with straight interfaces without any delamination, which suggests good adhesion between the individual layers.

The investigation of disturbed surface layer structure by the external photoeffect under X-ray diffraction conditions

1982 ◽  
Vol 71 (2) ◽  
pp. 603-610 ◽  
Author(s):  
V. G. Kohn ◽  
M. V. Kovalchuk ◽  
E. M. Imamov ◽  
B. G. Zakharov ◽  
E. F. Lobanovioh
Keyword(s):  
Surface Layer ◽  
Layer Structure ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Connected Variations of Meteorological and Electrical Quantities of Surface Atmosphere under the Influence of Heavy Rain

Atmosphere ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1195
Author(s):  
Vladimir Kalchikhin ◽  
Alexey Kobzev ◽  
Petr Nagorskiy ◽  
Mariya Oglezneva ◽  
Konstantin Pustovalov ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Layer ◽  
Heavy Rainfall ◽  
Atmospheric Precipitation ◽  
Heavy Rain ◽  
Air Masses ◽  
Surface Atmosphere ◽  
Synoptic Conditions ◽  
Electrical State ◽  
Atmospheric Phenomena

The electrical state of the surface atmosphere changes significantly under the influence of cloudiness and atmospheric phenomena, including atmospheric precipitation. These features can be used for possible diagnostics of precipitation and improvement of their characteristics based on variations of atmospheric-electrical quantities in the surface layer. Studies of variations of meteorological and atmospheric-electrical quantities in the surface layer were carried out during the heavy rainfall associated with the cumulonimbus (Cb) clouds passage. Meteorological and atmospheric-electrical observations in the Geophysical Observatory of the Institute of Monitoring of Climatic and Ecological Systems are presented in this paper. Precipitation data are used to identify periods of heavy rainfall ≥ 5 mm/h. Information of weather stations and satellites is used to separate the heavy rainfall events by synoptic conditions like thunderstorms and showers of frontal or internal air masses. We find that rains associated with the frontal Cb clouds produce more abrupt changes in negative electrical conductivity in comparison with the Cb clouds in internal air masses. The significant increase in negative electrical conductivity (more than two times vs. normal values) occurs typically during the passage of frontal Cb and heavy rain with droplet size greater than 4 mm.

Change in Ceramic Object Surface Layer Structure During Operation. Part 1

2020 ◽  
Vol 61 (1) ◽  
pp. 94-99 ◽  
Author(s):  
V. V. Kuzin ◽  
S. N. Grigor’ev ◽  
M. A. Volosova
Keyword(s):  
Surface Layer ◽  
Layer Structure ◽  
Object Surface

Highly stable and conductive PEDOT:PSS/GO-SWCNT bilayer transparent conductive films

2020 ◽  
Vol 44 (3) ◽  
pp. 780-790 ◽  
Author(s):  
Hui Zhao ◽  
Wenming Geng ◽  
Wei-Wei Cao ◽  
Jian-Gong Wen ◽  
Tao Wang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Double Layer ◽  
Layer Structure ◽  
High Electrical Conductivity ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
Double Layer Structure

PEDOT:PSS/GO-SWCNT films with a double-layer structure have high electrical conductivity and stability during bending.

Molecular characteristics and surface layer structure of poly(siloxane imides)

2007 ◽  
Vol 49 (5) ◽  
pp. 532-537
Author(s):  
A. E. Grishchenko ◽  
O. V. Khudyakova ◽  
N. A. Mikhailova ◽  
A. S. Gubarev ◽  
A. N. Ionov ◽  
...  
Keyword(s):  
Surface Layer ◽  
Layer Structure ◽  
Molecular Characteristics

LEED intensity−averaging experiments for surface−layer structure determination

1975 ◽  
Vol 12 (1) ◽  
pp. 213-221 ◽  
Author(s):  
M. G. Lagally ◽  
J. C. Buchholz ◽  
G.−C. Wang
Keyword(s):  
Surface Layer ◽  
Structure Determination ◽  
Layer Structure
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