Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Cañas, E.; Vicent, M.; Bannier, É.; Carpio, Pablo; Orts, M.J.; Sánchez, E.

doi:10.1016/j.jeurceramsoc.2015.09.039

Cited by 29 publications

(21 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These particles exhibit smooth surface and regular sphere shape with a diameter ranging from 3 to 22 μm, which is suitable for spray as reported. 15 Alumina (96% in purity, thickness of 1 mm) with surface roughness about 0.3 μm to form adhesive layer was used. 16,17 The metallization of alumina substrate was carried out using a Micro-Nanoparticle Coater-1700013 (CMD-PA60, Inocon Technologie GmbH, Austria).…”

Section: Powders and Coating Processmentioning

confidence: 99%

Surface resistivity and bonding strength of atmosphere plasma sprayed copper‐coated alumina substrate

et al. 2020

View full text Add to dashboard Cite

Ceramic substrate metallization is widely used in electronic device packaging and ceramic circuit board. Currently used methods of ceramic metallization are thick film technology (TFC), activity metal blazing (AMB), direct bonded copper (DBC), and direct plated copper (DPC) etc Here we report a facile approach for the metallization of alumina substrate using an atmosphere plasma spray (APS) process. The APS-coated copper layer is dense, high purity, and attached very firmly with alumina How to cite this article: Liu G, Zhong X, Xing Y, Li T, Pan W. Surface resistivity and bonding strength of atmosphere plasma sprayed copper-coated alumina substrate.

show abstract

Section: Powders and Coating Processmentioning

confidence: 99%

Surface resistivity and bonding strength of atmosphere plasma sprayed copper‐coated alumina substrate

et al. 2020

View full text Add to dashboard Cite

show abstract

“…This glass powder was obtained by the melting and quenching method [17]. To prepare the suspension, the glass powders were mixed with DGME solvent (Dowanol DPM, Dow Chemical, USA) with a proportion of 10 vol.% of solids and 90 vol.% of solvent, employing 0.5 wt% (relative to solids content) of D190 (Disperbyk-190, Byk, Germany) as a dispersant agent to stabilise the suspension.…”

Section: Synthesis and Characterisation Of The Bioactive Glass Suspenmentioning

confidence: 99%

“…In a recent paper with APS-BG coatings, the authors have shown that the abundance of round pores in the microstructure of these coatings is consequence of a liquid phase sintering mechanism operating during the thermal treatment of glassy particles [17]. For this reason, the SPS feedstock characteristics are expected to strongly affect the liquid phase sintering of the as-sprayed glass particles as well as on the evolving of gas bubbles occurring during the rapid sintering of melted glass particles.…”

Section: Introductionmentioning

confidence: 99%

Bioactive glass coatings by suspension plasma spraying from glycolether-based solvent feedstock

Cañas

Vicent

Orts

et al. 2017

Surface and Coatings Technology

Self Cite

View full text Add to dashboard Cite

Bioactive glasses are emerging as a substitute of hydroxyapatite in the development of bioactive coatings for biomedical applications. The deposition of these coatings is carried out by a wide range of methods, being atmospheric plasma spraying the most employed technique. However, the research on the deposition of these coatings from suspension feedstocks by thermal spraying is still incipient, therefore more research about this topic is needed.Thus, a bioactive glass suspension, composed of fine glass particles, was prepared and stabilised through rheological and sedimentation tests to be used as a feedstock in plasma spraying. The solvent used in the suspension preparation was dipropylene glycol methyl ether in order to develop a new type of bioactive suspension. Consequently, as a new type of solvent was used, its effect on the plasma torch properties was determined. On other hand, the rheological behaviour of the suspension feedstock was assessed by means of a simple viscosity model. This suspension was deposited onto metallic substrates by plasma spraying, employing several spraying distances. All coatings displayed a suitable adherence and similar thickness.However, the microstructure of the obtained coatings is highly affected by the spraying distance as it can be seen in coatings surface and cross-section field emission gun environmental scanning electron microscopy examination. Thus, a relation between the spraying distance and coatings microstructure was found. On the other hand, X-ray diffraction confirmed the amorphous nature of the obtained coatings.

show abstract

“…CaO and 24.0 Na2O (in oxide wt%) was obtained by melting and quenching, as previously reported [24]. Then, the glass was dry milled in a hammer mill and sieved to obtain a powder with a particle size lower than 63 µm.…”

Section: Feedstocks Preparation and Characterisationmentioning

confidence: 99%

Bioactive glass suspensions preparation for suspension plasma spraying

Cañas

Vicent

Orts

et al. 2016

Journal of the European Ceramic Society

Self Cite

View full text Add to dashboard Cite

A bioactive glass was dry-milled and sieved in order to obtain powders with particle size finer than 63 µm. Two suspensions, with different particle size distribution (D50 = 8.3 µm and D50 = 2.2 µm), were subsequently obtained from milling those powders in an organic solvent (dipropylene glycol methyl ether) by using two different grinding steps. The obtained suspensions were characterised and stabilised to produce adequate feedstocks to be used in suspension plasma spraying technique. For that purpose, sedimentation tests as well as rheological characterisation were carried out on both suspensions. Only the suspension feedstock containing the finest particle size, managed to produce a coating with suitable thickness and adherence on the substrate when a TiO2 bond coat was used. Besides X-ray diffraction findings confirmed the amorphous nature of the obtained coatings. However coating microstructure displayed many round, closed pores and surface observation revealed the presence of abundant non-deformed splats.

show abstract

Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Cited by 29 publications

References 24 publications

Surface resistivity and bonding strength of atmosphere plasma sprayed copper‐coated alumina substrate

Surface resistivity and bonding strength of atmosphere plasma sprayed copper‐coated alumina substrate

Bioactive glass coatings by suspension plasma spraying from glycolether-based solvent feedstock

Bioactive glass suspensions preparation for suspension plasma spraying

Contact Info

Product

Resources

About