Influence of controlled current ramp on flash sintering of 3D-printed zirconia scaffolds

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-06-14 DOI:10.1016/j.matlet.2025.138934

Fabio C. Nunes , Gustavo H.M. Gomes , João V. Campos , Juliana K.M.B. Daguano , Eliria M.J.A. Pallone

引用次数: 0

Abstract

Coupling additive manufacturing with non-conventional sintering techniques is a sustainable and innovative strategy for ceramic processing. Flash sintering, for example, can substantially reduce both the processing time and sintering temperature. In this study, we aimed to investigate the effect of Current-Ramp Flash Sintering (CRFS) on 3YSZ scaffolds produced by direct ink writing. The macrostructure, phase formation, and grain size growth were analyzed. Higher current ramp rates during FS resulted in larger pore sizes and increased porosity. Additionally, the grain size was larger at higher current ramp rates compared to lower ones. Overall, the combination of 3D printing and CRFS for scaffolds is a disruptive approach, with potential applications in various materials and geometries.

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可控电流斜坡对3d打印氧化锆支架闪烧的影响

将增材制造与非常规烧结技术相结合是陶瓷加工的可持续发展和创新策略。例如，闪速烧结可以大大缩短加工时间和烧结温度。在这项研究中，我们旨在研究电流斜坡闪烧（CRFS）对直接墨水书写制备的3YSZ支架的影响。分析了合金的宏观组织、相形成和晶粒尺寸的增长。在FS过程中，较高的电流斜坡速率导致更大的孔隙尺寸和更高的孔隙度。此外，在较高的电流斜坡速率下，晶粒尺寸比在较低的电流斜坡速率下更大。总的来说，3D打印和CRFS支架的结合是一种颠覆性的方法，在各种材料和几何形状中都有潜在的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive