BAS, CMAS and CZAS glass coatings deposited by plasma spraying

Bolelli, Giovanni; Lusvarghi, Luca; Manfredini, Tiziano; Parsini, E.; Siligardi, Cristina

doi:10.1016/j.jeurceramsoc.2007.03.032

Cited by 21 publications

(9 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[46][47][48] In order to improve the microstructure and the mechanical properties of the as-sprayed AWC coatings, thermal treatments were performed in an electric furnace to sinter and crystallise the coatings. Previous studies 49,50 demonstrated that thermal treatments were necessary in order to enhance the microstructure of the plasma-sprayed coatings and to transform the layer from a glass into a glass-ceramic, inducing the sintering and the nucleation and growth of crystals. The heating rate was 10 K/min in all cases.…”

Section: Methodsmentioning

confidence: 99%

Thermal and physical characterisation of apatite/wollastonite bioactive glass–ceramics

Cannillo

Pierli

Sampath

et al. 2009

Journal of the European Ceramic Society

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Thermal and physical characterisation of apatite/wollastonite bioactive glass–ceramics

Cannillo

Pierli

Sampath

et al. 2009

Journal of the European Ceramic Society

View full text Add to dashboard Cite

“…The test conditions are determined as 0.5 N test load for 20 s. The calculations formula used in the study was given in Eq. (1) [7,8]:…”

Section: Methodsmentioning

confidence: 99%

Granite Based Glass-Ceramic Materials

Bayrak

Yılmaz

2014

Acta Phys. Pol. A

View full text Add to dashboard Cite

In this study, production possibility of glass and glass-ceramic produced from granite was investigated. The composition of granite based glass bath mixture was 50 wt% granite, 25 wt% dolomite and 25 wt% sodium carbonate. Composition that was grounded and mixed in a ball mill for 2 h was melted at 1500• C for 1 h. Glass samples were heat treated for crystallization to produce glass-ceramic materials at 800• C, 900• C and 1000• C for 2 h to promote internal crystallization. Phase identications of glass and glass-ceramic materials were investigated by X-ray diraction analysis. Moreover, hardness and fracture toughness measurement of glass and glass-ceramic materials were applied. Granite based materials after that melting and casting process was found amorphous state by characterization with X-ray diraction analysis. After the heat treatment processes, crystal phases settled out in glass matrix were also determined in granite based materials. Moreover, values of hardness and fracture toughness increasing were detected by heat treatment schedule.

show abstract

“…Crack lengths were measured on ten indentations for each specimen and the fracture toughness K C was calculated using the following equation [13][14][15]:…”

Section: (B) Hardness and Fracture Toughnessmentioning

confidence: 99%

Microporosity and delamination mechanisms in thermally sprayed borosilicate glass coatings

Gao

Bao

Gawne

2016

Surface and Coatings Technology

View full text Add to dashboard Cite

Conventional enamelling requires both the feedstock powder and the substrate component to be heated one or more times in a furnace at 800 -900 o C. The process can degrade the substrate and limit the size of the component to the furnace dimensions, which are serious restrictions on the technology. This study concerns the use of combustion-flame spraying as an alternative technique for enamelling. In this process, the heat source (the flame) is separated from the substrate, which enables much lower substrate temperatures and avoids thermal damage. It also removes the need for furnace treatment and opens up the possibility of on-site enamelling and repair. However, experimental trials showed that thick flame-spray coatings delaminated during cooling and had high microporosities due to quenching stresses at the glass-steel interface and inadequate splat flow of small feedstock particles. The research shows that these adverse mechanisms could be overcome by pre-heating the substrate surface to the dilatometric softening temperature and removing fines from the feedstock powder. The control of these two parameters was found to double the adhesion strength, provide coatings of very similar hardness and fracture toughness to conventional enamel as well as deposit coatings of over 1 mm in thickness for heavy-duty corrosion protection. Thermal spraying is well established for ceramic and metal coatings but the fundamentally different structure of glasses requires a different approach. An advantage of combustion flame spraying shown up by this research is that the high energy of the flame accelerates the particles to a high velocity and the resulting impact forces promote the flow of the glass. As a result, lower substrate temperatures may be used with reduced risk of degradation or higher viscosity glasses may be 3 deposited with enhanced properties. The influence of the type of thermal-spray technique on coating quality is also discussed.

show abstract

BAS, CMAS and CZAS glass coatings deposited by plasma spraying

Cited by 21 publications

References 26 publications

Thermal and physical characterisation of apatite/wollastonite bioactive glass–ceramics

Thermal and physical characterisation of apatite/wollastonite bioactive glass–ceramics

Granite Based Glass-Ceramic Materials

Microporosity and delamination mechanisms in thermally sprayed borosilicate glass coatings

Contact Info

Product

Resources

About