Results 41 to 50 of about 470,492 (303)

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Strength monitoring of bridge constructions and features of its application. Part 1. International and domestic experience of monitoring application

open access: yesTransportnye Sooruženiâ, 2014
The development trend of building systems can be characterized in the following words: sophistication of design and simplification of operation. And the main task of the engineering structure operation is to ensure stability of the functioning structures
Ovchinnikov Igor Georgievich   +3 more
doaj   +1 more source

Influence of order degree of coaly graphite on its structure change during preparation of graphene oxide

open access: yesJournal of Materiomics, 2020
Coaly graphite is an important natural graphite resource that derived from coal under a natural process that associated with igneous intrusion. Flake graphite is usually used for the chemical synthesis of graphene oxide (GO), the main precursor for ...
Dandan Hou, Kuo Li, Rujia Ma, Qinfu Liu
doaj   +1 more source

Graphite ionization vacuum gauge [PDF]

open access: yes, 1974
Triode gauge with electron source, electron collector, and positive ion collector made from either graphite or carbon material extends low-pressure ranges of existing gauges by changing only materials used in construction.
Beitel, G. A., Benson, D. K.
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Prospects of application of high-tech carbon material as drainage in glaucoma surgery

open access: yesРоссийский офтальмологический журнал, 2018
Purpose. To conduct an experimental and clinical study of a hypotensive effect of implantation of an improved carbon drainage with an optimized sorption capacity. Material and methods.
A. V. Stepanov   +2 more
doaj   +1 more source

Dispersion corrections in graphenic systems: a simple and effective model of binding [PDF]

open access: yes, 2013
We combine high-level theoretical and \emph{ab initio} understanding of graphite to develop a simple, parametrised force-field model of interlayer binding in graphite, including the difficult non-pairwise-additive coupled-fluctuation dispersion ...
Dobson, John F.   +2 more
core   +3 more sources

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Fabrication and Investigation of Abrasive Wear Behavior of AZ31-WC-Graphite Hybrid Nanocomposites

open access: yesMetals, 2022
In current investigation, effects of incorporation of varying amount of graphite nanoparticles on abrasive wear behavior of AZ31-WC nanocomposites are examined.
Sudip Banerjee, Prasanta Sahoo
doaj   +1 more source

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