scholarly journals Surface, microstructural, and adhesion strength investigations of a bioactive hydroxyapatite-titanium oxide ceramic coating applied to Ti-6Al-4V alloys by plasma thermal spraying

2018 ◽  
Vol 21 (4) ◽  
Author(s):  
Renan Carreiro Rocha ◽  
André Gustavo de Sousa Galdino ◽  
Sidnei Nicodemos da Silva ◽  
Marcelo Lucas Pereira Machado
Keyword(s):  
Titanium Oxide ◽  
Adhesion Strength ◽  
Ceramic Coating ◽  
Thermal Spraying ◽  
Oxide Ceramic

scholarly journals TiNi Fixed Dentures with a Ceramic Coating

2017 ◽  
Vol 2 (1) ◽  
pp. 393
Author(s):  
S.I. Starosvetsky ◽  
M.A. Zvigintsev ◽  
A.P. Vasilieva ◽  
V.A. Yefremov ◽  
T.A. Khabas ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Ceramic Material ◽  
Titanium Oxide ◽  
Adhesion Strength ◽  
Sodium Carbonate ◽  
Ceramic Coating ◽  
Barium Oxide ◽  
Potassium Feldspar ◽  
Dental Ceramic

The work presents the study of a ceramic material that would provide a satisfactory bond of the commercially available ceramics to Titanid alloy. Polished sections of Titanid alloy and ceramics supplied by various manufacturers were examined.  The desired intermediate opaquer layer was fabricated from the following raw ingredients: potassium feldspar originating from Krasnoyarsk deposit and chemically pure barium oxide BaO, sodium carbonate Na2CO3, zinc oxide ZnO, hydroxyapatite Ca5(PO4)3(OH), and titanium oxide TiO2. The adhesion strength of Triceram dental ceramic to Titanid alloy with the use of the transitional ceramic opaquer appeared to be fairly high and ranged from 35 to 45 MPa.

Investigation of the Influence of Inertia Forces on the Adhesion of the Coating to the Outer Surface of Bodies of Revolution during Thermal Spraying

2021 ◽  
Vol 316 ◽  
pp. 726-731
Author(s):  
Alexey Yu. Rodichev ◽  
Roman N. Polyakov ◽  
Andrey V. Gorin
Keyword(s):  
Adhesion Strength ◽  
Outer Surface ◽  
External Surface ◽  
Thermal Spraying ◽  
Inertial Forces ◽  
Body Of Revolution ◽  
Mathematical Apparatus ◽  
Bodies Of Revolution ◽  
Steel Base ◽  
Inertia Forces

The article presents the results of a study of the influence of inertial forces on the adhesion of the coating to the external surface of a body of revolution during thermal spraying. A mathematical apparatus is proposed for calculating the inertia forces, acting on a particle of coating, applied to the outer surface of the bodies of revolution. As a result, dependencies have been revealed that allow predicting the adhesion strength of the coating with the steel base during thermal spraying.

Influence of Bondcoat Topography on the Properties of Suspension Sprayed YSZ Thermal Barrier Coatings

2021 ◽  
Author(s):  
Filofteia-Laura Toma ◽  
Julia Sagel ◽  
Christoph Leyens ◽  
Karel Slámečka ◽  
Serhii Tkachenko ◽  
...  
Keyword(s):  
Thermal Barrier Coatings ◽  
Physical Vapor Deposition ◽  
Thermal Spraying ◽  
Ceramic Coatings ◽  
Cycling Performance ◽  
Thermal Barrier ◽  
Oxide Ceramic ◽  
Air Plasma ◽  
Barrier Coatings ◽  
Direct Laser

Abstract Intensive R&D work of more than one decade has demonstrated many unique coating properties; particularly for oxide ceramic coatings fabricated by suspension thermal spraying technology. Suspension spraying allows producing yttria-stabilized zirconia (YSZ) thermal barrier coatings (TBC) with columnar microstructure; similar to those produced by electron-beam physical vapor deposition (EB-PVD); and vertically cracked morphologies; with a generally low thermal conductivity. Therefore; suspension sprayed YSZ TBCs are seen as an alternative to EB-PVD coatings and those produced by conventional air plasma spray (APS) processes. Nonetheless; the microstructure of the YSZ topcoat is strongly influenced by the properties of the metallic bondcoat. In this work; direct laser interference patterning (DLIP) was applied to texture the surface topography of Ni-alloy based plasma sprayed bondcoat. Suspension plasma spraying (SPS) was applied to produce YSZ coatings on top of as-sprayed and laser-patterned bondcoat. The samples were characterized in terms of microstructure; phase composition and thermal cycling performance. The influence of the bondcoat topography on the properties of suspension sprayed YSZ coatings is presented and discussed.

scholarly journals Modification of the composite multi-layer oxide ceramic coating on meteoroid shielding element by compression plasma flow

2016 ◽  
Vol 774 ◽  
pp. 012192
Author(s):  
V M Astashinski ◽  
P P Khramtsov ◽  
U M Hryshchanka ◽  
M Yu Chernik ◽  
V A Vasetskij ◽  
...  
Keyword(s):  
Plasma Flow ◽  
Ceramic Coating ◽  
Oxide Ceramic ◽  
Compression Plasma Flow

Ultrasound Examination – Mean of Analysis of the Layers Properties Deposited Through Different Thermal Spraying Methods

2012 ◽  
Vol 186 ◽  
pp. 169-175 ◽  
Author(s):  
Dand Botez Sorin Constantin ◽  
Gabriel Marius Dumitru ◽  
Bogdan Dumitru ◽  
Dina Viorel-Cristian
Keyword(s):  
Comparative Study ◽  
Adhesion Strength ◽  
Ultrasound Examination ◽  
Thermal Spraying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Flame Spraying ◽  
Arc Spraying ◽  
Surface Adhesion ◽  
Better Than

Reconditioning materials by thermal spray metalizing is a rapidly growing field. In this paper we conducted a comparative study of three methods of metal deposition: flame spraying, atmospheric plasma spraying, arc spraying. This was done considering two of the properties of layers obtained in metalizing process: surface adhesion strength and porosity. The result of ultrasound examination by immersion shows that adhesion obtained through APS method is better than the others two obtained through AS and FS methods.

Removal of Titanium Plates Coated With Anodic Titanium Oxide Ceramic: Retrospective Study

2002 ◽  
Vol 13 (5) ◽  
pp. 636-640 ◽  
Author(s):  
Norbert Velich ◽  
Zsolt Németh ◽  
Csongor Suba ◽  
György Szabó
Keyword(s):  
Retrospective Study ◽  
Titanium Oxide ◽  
Oxide Ceramic ◽  
Anodic Titanium Oxide

scholarly journals QUATERNARY BASALTS FROM ROMANIA - CHARACTERISTICS AND NON-CONVENTIONAL USES

2004 ◽  
Vol 36 (1) ◽  
pp. 103 ◽  
Author(s):  
S. Marica
Keyword(s):  
Ceramic Coating ◽  
Research Work ◽  
Volcanic Rocks ◽  
Thermal Spraying ◽  
Cutting Parameters ◽  
Organic Films ◽  
Coating Process ◽  
Gas Flame ◽  
Spraying Process ◽  
Conventional Coating

This paper presents an advanced stage of research work regarding the exploitation of natural volcanic rocks (basalt, andésites, tuffs) that are not to be polished but that can be cut into thin tiles and be cover with different inorganic and organic films. The basalt, andésite and tuff samples from some quarries proved to have very good cutting parameters, linear thermal expansions with a temperature between 5.67 and 8.85 x106C"1 for basalts and andésites and between 0.05 and 3.82 x106 C"1 for tuffs. The classic ceramic coating process used glaze with grinding fineness. The resulting surfaces are glossy, uniformly covered from a decorative aspect and by a variety of colour, suitable for various external and internal applications. The non-conventional coating by oxy-gas flame thermal spraying process on basalt frits with a grinding fineness between 100 and 70 μπι, resulted in rough, dark coloured surfaces, suitable for floors with high compressive strengths.

Combined Metallurgical and Ceramic Coating in the Development of Tubular Ozone Generators

1998 ◽  
Author(s):  
R. Gadow ◽  
A. Killinger ◽  
A. Voss ◽  
C. Friedrich
Keyword(s):  
Surface Roughness ◽  
Oxide Layer ◽  
Borosilicate Glass ◽  
Electrode Surface ◽  
Ceramic Coating ◽  
Dielectric Strength ◽  
Production Costs ◽  
Multilayer Coatings ◽  
Oxide Ceramic ◽  
Tremendous Impact

Abstract This article discusses the development of a novel efficient ozonizer tube which cuts down the production costs and thus causes ozone to be an economically competitive alternative in comparison to traditionally used chlorine compounds. It describes the principle of ozone generation, provides information on improved ozonizer tubes, and presents the criteria for selecting thermal spray powders. The article investigates several types of thermal sprayed multilayer coatings, consisting of an Al/Si intermetallic interlayer and an oxide ceramic top coating on a borosilicate glass. It was found that the structural constitution namely, porosity and electrode surface roughness of the oxide layer, has a tremendous impact on the dielectric strength of the composite.

Sign in / Sign up

Export Citation Format

Share Document