Conductivity stability and its relationship with the filler network structure of elastomer composites with combined fibrous/layered nickel-coated fillers

RSC Advances ◽  
2014 ◽  
Vol 4 (61) ◽  
pp. 32482-32489 ◽  
Author(s):  
Nanying Ning ◽  
Suting Liu ◽  
Qian Shao ◽  
Shani Yan ◽  
Hua Zou ◽  
...  

Conductive elastomer composites with high electrical conductivity and high conductivity stability were prepared by using combined fibrous/layered nickel-coated fillers.

1924 ◽  
Vol 14 (2) ◽  
pp. 198-203 ◽  
Author(s):  
W. R. G. Atkins

1. The electrical conductivity of aqueous extracts of soils, in the proportion of one of soil to five of water, varies according to the time of extraction. In the more fertile soils extraction for three to four hours gives less than half as great a conductivity as is given in 4 to 11 days.2. In peat the maximum value is reached almost at once, the extract having a high conductivity. The maximum value is also reached quickly in certain infertile soils, which give an extract of very low conductivity, closely similar to that of the purest upland streams.3. A high electrical conductivity in the extract may only indicate the presence of an excess of salts, and does not necessarily indicate a good soil. It seems, however, that a rapid increase in conductivity as extraction is prolonged indicates increased solubility, partly through bacterial action and may be considered as a useful indication of fertility. A low conductivity, which remains low on continued extraction, denotes a soil so insoluble as to be unfertile.


Alloy Digest ◽  
2020 ◽  
Vol 69 (1) ◽  

Abstract Olin Brass Alloy C10200 is an oxygen-free, high-conductivity copper. It is ideal for applications where extremely high electrical conductivity and resistance to hydrogen embrittlement are vital. Where glass-to-metal seals are required this material also provides the added advantage of developing an adherent, nonscaling oxide at elevated temperatures. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance. Filing Code: Cu-903. Producer or source: Olin Brass GBC Metals, LLC.


2020 ◽  
Vol 8 (48) ◽  
pp. 17254-17260
Author(s):  
Amélie Schultheiss ◽  
Alexandre Carella ◽  
Stéphanie Pouget ◽  
Jérôme Faure-Vincent ◽  
Renaud Demadrille ◽  
...  

A careful control of the water content during PEDOT polymerization allow to reach extremely high electrical conductivity.


2016 ◽  
Vol 18 (37) ◽  
pp. 26275-26283 ◽  
Author(s):  
P. C. Sreeparvathy ◽  
V. Kanchana ◽  
G. Vaitheeswaran ◽  
N. E. Christensen

First principles calculations predict the promising thermoelectric material ZnGeSb2with a huge power factor (S2σ/τ) on the order of 3 × 1017W m−1K−2s−1, due to the ultra-high electrical conductivity scaled by a relaxation time of around 8.5 × 1025Ω−1m−1s−1, observed in its massive Dirac state.


2020 ◽  
Author(s):  
Tomoo Katsura ◽  
Hongzhan Fei

Abstract The oceanic asthenosphere shows two enigmatic features: low viscosity and high electrical conductivity. Their origins gather wide attention, but remain unsolved. Recent self-diffusivity measurements as a function of H2O content in olivine demonstrated that the H2O-incorporation in olivine cannot soften the asthenosphere, but it enhances the ionic conductivity, and causes the high-conductivity anomaly.


1989 ◽  
Vol 4 (6) ◽  
pp. 1560-1568 ◽  
Author(s):  
M. Inagaki

The properties of graphite intercalation compounds (GIC's) are discussed with respect to possible applications. Five families of intercalates give high electrical conductivity to GIC's: pentafluorides leading to high conductivity, 108 S/m (higher than metallic copper); metal chlorides; fluorine and alkali metals with bismuth giving relatively high conductivity of the order of 107 S/m plus stability in air; and residual halogens showing extremely high stability under severe conditions, though the conductivity is only of the order of 106 S/m. Electrodes of different GIC's have been tried in primary and secondary batteries, where their characteristics are high electrical conductivity and easy diffusion of electrochemically active species between the graphite layers. Primary lithium batteries of a covalent graphite fluoride are now widely used commercially. Secondary batteries using different host graphites and intercalates give interesting results. Large amounts of hydrogen can be stored in the functional space in alkali metal-GIC's. The same GIC's show high coefficients of isotope separation of hydrogen at liquid nitrogen temperature. The structure and texture of the host graphite play a decisive role in the absorption and separation behaviors of GIC's. Exfoliated graphite prepared by rapid heating of GIC's or their residue compounds leads to flexible graphite sheets which have great industrial applications. Some problems connected with the production and use of these sheets are discussed.


2016 ◽  
Vol 4 (23) ◽  
pp. 5207-5213 ◽  
Author(s):  
Chih-Chia Cheng ◽  
Yeh-Sheng Wang ◽  
Jem-Kun Chen ◽  
Duu-Jong Lee

Supramolecular polymers can be used to manipulate and align carbon nanotubes (CNTs) in a nanofiber matrix, resulting in high electrical conductivity at ultra-low CNT content.


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