用聚合物辅助的3D打印电感器芯
Zhidong Luo1,2, Qi Yue1,2, Xueyuan Li1,2
1Department of Materials, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
ACS applied materials & interfaces
|February 13, 2024
概括
这项研究开发了一个高负载,3D可打印的氧化铁纳米粒子墨水,使用聚糖醇单甲基酸盐 (PGMA). 优化的油墨使得与现有的氧化铁核心设备相比,具有更高性能的功能电感器的制造成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 开发高性能功能设备需要先进的可打印油墨.
- 氧化铁纳米颗粒 (IOP) 具有独特的磁性,但对3D打印提出了制定挑战.
- 聚甘单甲酸 (PGMA) 作为IOP油墨的风质修饰剂正在研究中.
研究的目的:
- 研究PGMA作为高负载IOP3D打印油墨的添加剂.
- 为了优化油墨配方的整形学,可打印性和机械性能.
- 使用优化的墨水制造和评估3D打印电感器的电性能.
主要方法:
- 对于PGMA合成的可逆添加-碎片化链转移聚合.
- 具有不同PGMA质量和负荷的IOP悬浮剂的风湿学特征.
- 各种结构和电感器的3D打印.
- 在烧结后进行机械测试 (柔和和压缩).
- 通过阻抗光谱学进行电性能评估.
主要成果:
- 开发了一种优化的油墨配方 (70% w/w IOPs,0.25% w/w PGMA,pH10).
- 成功实现了复杂结构和巨型圆形的3D打印.
- 烧结改善了机械性能;更高的温度提高了性能.
- 3D打印的电感器在10MHz时实现了40的Q因子,超过了以前的氧化铁芯设备.
- 由于氧化铁的相变化,观察到电气特性和烧结温度之间的权衡.
结论:
- PGMA是一种有效的添加剂,用于制造高负载,水性,3D可打印IOP油墨.
- 开发的油墨和印刷工艺使得高性能电感器的制造成为可能.
- 这项工作通过增材制造推进了低成本,功能性陶设备的开发.
相关概念视频
01:11Inductors
409
An inductor is a passive component built to store energy within its magnetic field. It can be fabricated by coiling a wire around a magnetic core. When current is permitted to flow through this inductor, it is observed that the voltage across the inductor is directly proportional to the time rate of change of the current. Mathematically,
409
01:24Inductance: Solid Cylindrical Conductor
262
To calculate the inductance of a solid cylindrical conductor, consider a 1-meter section of a non-magnetic, current-carrying conductor with radius r. Disregarding end effects and assuming uniform current density, Ampere's law helps determine the magnetic field inside the conductor. This law states that the magnetic field intensity H is concentric and constant within the conductor.
Given the uniform current distribution, the magnetic field Hx and flux density Bx inside the conductor are...
Given the uniform current distribution, the magnetic field Hx and flux density Bx inside the conductor are...
262
01:16Energy Stored in Inductors
388
An inductor is ingeniously crafted to accumulate energy within its magnetic field. This field is a direct result of the current that meanders through its coiled structure. When this current maintains a steady state, there is no detectable voltage across the inductor, prompting it to mimic the behavior of a short circuit when faced with direct current.
In terms of gauging the energy stored within an inductor, it is equivalent to the integral of the power delivered at every individual moment, all...
In terms of gauging the energy stored within an inductor, it is equivalent to the integral of the power delivered at every individual moment, all...
388
01:16Inductor in an AC Circuit
2.4K
The basic components of an inductor are coils or loops of wire that are either wound around a hollow tube former or a ferromagnetic material (iron-cored) to increase their inductive value or inductance. When a voltage is applied across an inductor's terminals, a magnetic field is created, where the inductor stores its energy. The inductor's own self-induced or back emf value controls the growth of the current flowing through it. This back emf voltage is proportional to the rate of...
2.4K
01:28Induced Electric Dipoles
4.2K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.2K
01:29Calculation of Self-inductance
362
The self-inductance of a circuit, often simply called the inductance, is a purely geometric factor that depends only on the circuit component's structure. More specifically, it depends on the shape and size of the component that lets the flux pass through it, thus inducing an electric field that opposes any current passing through it.
Since the effect of the induced electric field and the back EMF generated depends on the rate of change of current and the self-inductance, the inductance...
Since the effect of the induced electric field and the back EMF generated depends on the rate of change of current and the self-inductance, the inductance...
362