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

8th International Congress of Engineering Physics

物理学;工业技术

Peña-Rodríguez, G.^1 ; Dulce-Moreno, H.^1 ; Daza-Ramírez, J.^2 ; Orozco-Hernández, S.^2 ; Vargas-Galvis, F.^3

Faculty of Basic Sciences, Department of Physics, GITEC Group, Francisco de Paula Santander University, Av. Gran Col. # 12E-96, Cucuta, Colombia^1

Industrial Engineering, Francisco de Paula Santander University, Cucuta, Colombia^2

Pyrometallurgical and Materials Research Group (GIPIMME), University of Antioquia, Medellin, Colombia^3

关键词: Coating thickness;    Mechanical resistance;    Oxyacetylene flame;    Spraying techniques;    Technological applications;    Tribological behaviors;    Tribological performance;    Uni-axial pressing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/792/1/012026/pdf
DOI  :  10.1088/1742-6596/792/1/012026

学科分类：工业工程学

来源: IOP

【 摘 要 】

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.