SLA 印刷锰锌铁氧体陶瓷的液相烧结和磁性能研究

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-09-21 DOI:10.1016/j.ceramint.2024.09.280

Gongxian Yang , Bin Zou , Xinfeng Wang , Yifan Hu , Lei Li , Xingguo Zhou , Qingguo Lai , Chuanzhen Huang

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引用次数: 0

摘要

为了获得具有良好致密性和磁性能的锰锌铁氧体磁性陶瓷部件，我们进行了一项研究。使用立体光刻技术（SLA）制备了固体颗粒含量为 58 vol% 的锰锌铁氧体磁性陶瓷部件。对 SLA 固化陶瓷坯件进行脱脂和烧结。采用直接加热脱脂法对 Mn-Zn 铁氧体部件的脱脂工艺进行了优化，最终确定了适合铁氧体磁性陶瓷浆料系统的工艺。提出了烧结脱脂铁氧体部件的液相烧结方法。研究调查了促进剂含量、烧结温度和保温时间对 Mn-Zn 铁氧体部件密度和磁性能的影响。研究发现，最佳参数为烧结助剂含量为 3 wt%、烧结温度为 900 °C 和保温时间为 90 分钟。在这些条件下，零件的密度为 4.43 g/cm3，致密化率为 91.4%，饱和磁化强度为 64 emu/g，矫顽力为 10 Oe。最后，分析了 SLA 印刷铁氧体磁性陶瓷的烧结控制机制。研究揭示了 Mn-Zn 铁氧体在液相烧结过程中的晶粒生长过程和磁化原理。该研究为 Mn-Zn 铁氧体陶瓷的后续光固化印刷和脱脂烧结提供了指导。此外，用 SLA 方法制备的 Mn-Zn 铁氧体磁性陶瓷部件在各种精密电子元件中也具有广泛的应用前景。

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Study on liquid-phase sintering and magnetic properties of SLA-printed Mn-Zn ferrite ceramics

To obtain Mn-Zn ferrite magnetic ceramic parts with good densification and magnetic properties, a study was conducted. Mn-Zn ferrite magnetic ceramic parts with a solid particle content of 58 vol% were prepared using stereolithography (SLA). The SLA-cured ceramic blanks were degreased and sintered. The degreasing process for Mn-Zn ferrite parts was optimized using a direct heat degreasing method, resulting in a suitable process for the ferrite magnetic ceramic paste system. The method of liquid phase sintering is proposed for sintering the degreased ferrite parts. The study investigated the impact of the content of accelerant, sintering temperature, and holding time on the density and magnetic properties of Mn-Zn ferrite parts. The optimal parameters were found to be a firing aid content of 3 wt%, a sintering temperature of 900 °C, and a holding time of 90 min. Under these conditions, the parts exhibited a density of 4.43 g/cm³, densification of 91.4 %, saturation magnetization strength of 64 emu/g, and coercivity of 10 Oe. Finally, the sintering control mechanism of SLA-printed ferrite magnetic ceramics was analyzed. The study revealed the grain growth process and magnetization principle of Mn-Zn ferrite during liquid phase sintering. This research provides guidance for the subsequent photocuring printing and degreasing sintering of Mn-Zn ferrite ceramics. Additionally, Mn-Zn ferrite magnetic ceramic parts prepared by the SLA method also hold a wide application prospect in various precision electronic components.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.