Harvesting kinetic energy from roadway pavement through an electromagnetic speed bump.

Autores: Gholikhani, M. et Al Roadway pavements are repeatedly subjected to two different types of energy sources—solar radiation and kinetic energy from passing vehicles. Therefore, they have great potential to be utilized as sustainable energy sources. In this study, an electromagnetic speed bump energy harvester (ESE) prototype was developed to harvest energy from the kinetic energy of passing vehicles and to simultaneously control vehicles’ speed. […]

Decomposition of vehicle exhaust on pavement with nanotitanium oxide and promoting function of pyroelectric materials

Autores: Li, F. et Al According to the actual road conditions, the representative temperature, ultraviolet light intensity, and exhaust concentration were selected as the test environment. A study of the law of vehicle exhaust decomposition under different levels was conducted, and the phenomenon of temperature-light equivalence during a catalytic process was proposed. The decomposition products of exhaust gas from nanotitanium dioxide were detected by chemical […]

Reuse of mineral wool waste and recycled glass in ceramic foams

Autores: Chen, Z. et Al Novel ceramic foams have been prepared by high temperature sintering of waste mineral wool and waste glass using SiC as a foaming agent. The aim of the research was to understand the effects of composition and sintering conditions on the properties and microstructure and produce commercially exploitable ceramic foams. Optimum ceramic foams were formed from 40 wt% mineral wool waste and 2 wt% SiC, sintered at […]

The influence of sintering temperature on characteristic of ceramics based on bentonite, glass bead and alumina

Autores: Sebayang, P et Al Bentonite, glass bead, and Al2O3 based fine ceramics with variation of sinter temperatures (900, 1000, 1100, and 1200°C) have been prepared by powder metallurgy method. The preparation process of raw materials starts from the mixing of 35 wt% powder bentonite, 35 wt% glass bead, and 30 wt% alumina using High Energy Milling (HEM). After that, the powders are compacted with […]

The improvement in properties and environmental safety of fired clay bricks containing hazardous waste electroplating sludge: The role of Na 2 SiO 3

Autores: Dai, Z.  et Al The introduction of electroplating sludge in the manufacturing of clay brick can be considered a feasible method to consume it, while physical-mechanical performances would degrade significantly and the potential leachability of heavy metals remain. This study proposed an alternative to remedy these negative impacts by adding Na 2 SiO 3 . The addition of Na 2 SiO 3 decreased water absorption and promoted compressive strength substantially. Water absorption […]

Ceramic tiles for photocatalytic removal of NO in indoor and outdoor air under visible light

Autores: Jiang, Q. et Al The photo-catalytic oxidation is a promising air-cleaning technology in the decomposition of volatile organic compounds and mineralization of undesired chemical substances in indoor or outdoor environment. Recently, nitrogen oxides are often present in indoor and outdoor air due to burning activities, among which nitric oxide (NO)is the main pollutant. Based on the post-treatment technology, ceramic tiles for removal of NO in indoor […]

Praseodymium oxides. Complete characterization by determining oxygen content

Autores: Gazulla, M.F. et Al Praseodymium ions are available in many oxidation states, so they are capable to form a huge number of different oxides, which make them an interesting and versatile material in many industries, such as ceramics or optics. Although praseodymium oxides behavior has been studied, the information found in the literature is sometimes contradictory. The different conditions of experimentation have led to […]

Steel chip and porcelain ceramic wastes used as replacements for coarse aggregates in concrete

Autores: Keshavarz, Z.  et Al Industrial wastes, such as ceramic scraps and steel tailings, are increasingly produced worldwide, which calls for the development of solutions to dispose of such litter massively dumped in the environment. It is the objective of the present study to explore possible ways of utilizing ceramicand steel wastes in concrete-making not only as a measure of preventing their accumulation in the environment but also […]

Predicting viscosity and surface tension at high temperature of porcelain stoneware bodies: A methodological approach

Autores: Conte, s.  et Al The shear viscosity and the glass-vapor surface tension at high temperature are crucial to understand the viscous flow sintering kinetics of porcelain stoneware. Moreover, the pyroplastic deformation depends on the viscosity of the whole body, which is made up of a suspension of crystals dispersed in the melt. The existing fundamental theoretical background, along with semi-empirical constitutive laws for viscous flow sintering […]

Green ceramic pigment based on chromium recovered from a plating waste

Autores: Gayo, G.X.  et Al The development of pigments with new formulas, departing from lower-cost raw materials, is driven by market growth and competitiveness required by the ceramic sector. In this work, the application of a residue from a metallurgical plant, containing a high amount of chromium (III) in ceramics glazes was studied. Cr2O3 was successfully separated from chrome plating waste resulting in a suitable […]

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