Listar por tema "thermal spray"

A chromite mineral and two industrial residues produced in the petrochemical and thermoelectric industries, were selected, characterized, processed and deposited on refractory bricks. By means of X-ray fluorescence and ...

The mechanical and tribological performance of red clay ceramic tiles uncoated and coated by oxy-fuel thermal spraying process from fly ash powders was evaluated. The ceramic tile substrates were manufactured by uniaxial ...

$Portada Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material$

Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material
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Cadavid, Edwin | 2018-04-01

A chromite mineral and two industrial residues produced in the petrochemical and thermoelectric industries, were selected, characterized, processed and deposited on refractory bricks. By means of X-ray fluorescence and X-ray diffraction the chemical composition and crystallographic phases of raw materials were analyzed, morphology and particle size was determinate using Scanning Electron Microscopy. The materials were deposit by oxyacetylene thermal spray on silica-alumina refractory bricks and high alumina low cement concrete, commercial references ER-40 and CBC-50 from ERECOS S.A.S.. The parameters used for the coating deposition were optimized based on preliminary test and simulations using the Jets&powders software. The chromite mineral coating displayed greater structure homogeneity than the other two coatings; the last ones presented partially melted particles and high porosity. However, based on the chemical composition, the response to adhesion test and the crystallographic phases present in the coatings, all of them are potential candidates to be used as protective barriers against corrosive effects on refractories.

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Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique
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Peña Rodriguez, Gabriel | 2017

The mechanical and tribological performance of red clay ceramic tiles uncoated and coated by oxy-fuel thermal spraying process from fly ash powders was evaluated. The ceramic tile substrates were manufactured by uniaxial pressing at 26.17 bar pressure, and sintered at 1100 °C. The coating thickness was determined based on the number of projection-cycles oxyacetylene flame over substrate. Coal fly ash coatings were deposited, with average thickness of 56.18±12.18 µm, 180.42±20.32 µm, and 258.26±25.88µm. The mechanical resistance to bending and wear by abrasion deep, were studied using ISO 10545-4 standards and ISO 10545-6 respectively; adhesion was measured using Elcometer equipment Type III according to ASTM D-4541-02 and the average roughness (Ra) was found according to ASTM standard D7127-13, using the profilometer Mitutoyo SJ 201. The surface morphology presented the heterogeneous molten or semi molten splats with average size of 35.262±3.48 micrometers with good adhesion, justifying increased mechanical resistance to bending by 5%, as well as wear by abrasion deep. These results contribute to the development of ceramic products with added value, to be used in various technological applications.

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Listar por tema "thermal spray"

Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material

Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique

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Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material

Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique

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Listar por tema "thermal spray"

Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material ﻿

Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique ﻿

Envíos recientes

Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material

Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique

Portales Institucionales

Manufacture of oxy-acetylene thermally sprayed coating on refractory subtrates from unconventional feedstock material

Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique