Tailoring α-alumina powder morphology through spray drying for cold consolidation by binder jetting

Mariani, Marco; Blanco, Guillermo Frias; Mercadelli, Elisa; Sánchez-Herencia, Antonio Javier; Galassi, Carmen; Lecis, N.; Ferrari, B.

doi:10.1016/j.oceram.2022.100307

Cited by 4 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The working mechanism of BJP involves the selective deposition of minuscule, water-based binder droplets (typically less than 100 μm diameter) onto specific regions of a powder bed [ [103] , [104] , [105] ]. The binder permeates the powder layer and adheres to powder particles at locations following the cross-sectional model design, creating a green part embedded within the powder bed [ 106 ].…”

Section: Ink-based Additive Manufacturing Technologiesmentioning

confidence: 99%

Ink-based additive manufacturing for electrochemical applications

Zhang,

Sun

2024

Heliyon

View full text Add to dashboard Cite

Section: Ink-based Additive Manufacturing Technologiesmentioning

confidence: 99%

Ink-based additive manufacturing for electrochemical applications

Zhang,

Sun

2024

Heliyon

View full text Add to dashboard Cite

“…The flowability of the powder was evaluated by calculating the Hausner ratio from the apparent/tapped density and the dispensing rate, according to the procedure in [28].…”

Section: Microstructural and Piezoelectric Characterizationsmentioning

confidence: 99%

“…However, the use of dry powders for layer-by-layer deposition poses a series of challenges toward achieving a high green density and, as a consequence, full density after sintering, particularly for ceramic materials that do not feature liquid sintering [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Piezoelectric Niobium-Doped Lead Zirconate Titanate (PZT-N) by Binder Jetting

et al. 2023

Self Cite

View full text Add to dashboard Cite

Binder jetting is an emerging indirect additive manufacturing technique for ceramic materials, which could be employed to produce application-oriented designed components impossible to achieve with traditional processes and featuring enhanced performances. In our study, niobium-doped lead zirconate titanate (PZT-N) powder, usually processed through the standard press-and-sinter route, was employed as the raw material. First, the powder was characterized in terms of granulometry and flowability to assess its suitability for the printing process. Then, shaping by binder jetting was studied, and the effect of three levels of binder saturation (75–90–105%) on the green bodies was assessed. Finally, the microstructure of the sintered samples was studied using SEM, to investigate the effect of thermal treatments on the grain size distribution and residual porosity (~40%). The piezoelectric properties were measured and compared to those of conventionally processed material. The piezoelectric charge and voltage constants (d33 and g33) were evaluated to determine the possible use of printed parts as porous piezoelectric components to be exploited in hydrophones in the direct mode.

show abstract

Effects of process parameters on deposition behavior and mechanical properties of alumina coatings by aerosol deposition

Xie,

Hassan‐Naji,

Hall

2024

J Am Ceram Soc.

View full text Add to dashboard Cite

As a novel coating spray technique, the aerosol deposition method is applied for the fabrication of dense, nanostructured ceramic coatings at room temperature via an impact consolidation mechanism. It is widely recognized that the successful deposition of coatings is strongly dependent on processing parameters during the deposition process. In this study, a brush‐type aerosol generator was employed to enhance the continuity and stability of the aerosol supply. The uniformity of powder consumption at different packing densities was evaluated; an optimal loading density of 33% was identified for the alumina powders used in this study. Both simulation and experimental studies were performed to investigate the influence of gas flow rate and standoff distance (SoD) on coating fabrication and properties. The predicted particle impact velocity increased with increasing gas flow intensity and SoD, resulting in enhanced mechanical properties of the coatings, including adhesive strength and hardness. The maximum compressive residual stress value of 389 MPa was determined for an alumina coating fabricated at a gas flow rate of 20 L/min.

show abstract

Tailoring α-alumina powder morphology through spray drying for cold consolidation by binder jetting

Cited by 4 publications

References 43 publications

Ink-based additive manufacturing for electrochemical applications

Ink-based additive manufacturing for electrochemical applications

Additive Manufacturing of Piezoelectric Niobium-Doped Lead Zirconate Titanate (PZT-N) by Binder Jetting

Effects of process parameters on deposition behavior and mechanical properties of alumina coatings by aerosol deposition

Contact Info

Product

Resources

About