The mass preparation of high-purity coiled carbon fibers (CCFs) remains challenging due to the high complexity and low controllability of reaction. In this work, a controllable growth of Ni particles was fulfilled by liquid phase reduction of nickel sulfate with hydrazine hydrate. The impacts of the reaction temperature, NaOH concentration, and reaction time on the particle size and purity were...

We present a study on connectivity percolation in suspensions of hard platelets by means of Monte Carlo simulation. We interpret our results using a contact-volume argument based on an effective single-particle cell model. It is commonly assumed that the percolation threshold of anisotropic objects scales as their inverse aspect ratio. While this rule has been shown to hold for rodlike particle...

Abstract Electroconductive composites are modern materials that commonly used in many industries such as construction industry and machine-building industry. For example, these can be useful sensors for monitoring changes constructions, shielding stray currents from electrification networks, electromagnetic radiation operating rooms, cathodic protection against moisture or overvoltage of buildi...

A suite of bulk and surface analytical techniques was applied to shed light on the factors limiting fast cycling composite graphite electrodes in all-solid-state cells based sulfide electrolytes 0.75Li2S-0.25P2S5 (LPS) 0.3LiI-0.7(0.75Li2S-0.25P2S5). Cracks poor percolation ionic conducting particles were identified by both scanning electron microscopy X-ray tomography slow kinetics during lithi...

Kinematic analysis has provided important insights into the biology of growth by revealing the distribution of expansion within growing organs. Modern methods of kinematic analysis have made use of new image-tracking algorithms and computer-assisted evaluation, but these methods have yet to be adapted for examination of growth in a variety of plant species or for analysis of graviresponse. Ther...

Nanofluids have received much attention in part due to the range of properties possible with different combinations of nanoparticles and base fluids. In this work, we measure the viscosity of suspensions of graphite particles in ethylene glycol as a function of the volume fraction, shear rate, and temperature below and above the percolation threshold. We also measure and contrast the trends obs...

Graphite oxide sheet, now called graphene oxide (GO), is the product of chemical exfoliation of graphite and has been known for more than a century. GO has been largely viewed as hydrophilic, presumably due to its excellent colloidal stability in water. Here we report that GO is an amphiphile with hydrophilic edges and a more hydrophobic basal plane. GO can act like a surfactant, as measured by...

This study compares the effect of addition two types lubricants on dry sliding behavior a simplified Cu-free phenolic resin-based composite material. The were commercial graphite and exfoliated graphitic carbon nitride (codenamed: TEX6). particles rounded ‘flaky’ character. TEX6 not only flaky, but also irregular in shape, ‘fluffy’. Both added individually basic formulation subjected to tests p...

Abstract Production of piezo‐resistive auxetic sensors is usually carried out through mixing and coating methods. Although these methods are beneficial, Young's modulus mixed becomes high because using a percentage sensing elements while the durability coated gets low due to separation from sensor surface. This article presents new core–shell metamaterial model address mentioned problems. The s...

: The effective dynamic viscosity was measured in the graphite water-based nanofluids. The shear thinning non-Newtonian behavior is observed in the measurement. On the basis of the best fitting of the experimental data, the viscosity at zero shear rate or at infinite shear rate is determined for each of the fluids. It is found that increases of the particle volume concentration and the holding ...