Design and Fabrication of Self-Powered Micro-Harvesters by Lin Liwei Pan C. T. Hwang Y. M. Chen Ying-Chung & Y. M. Hwang & Liwei Lin & Ying-Chung Chen

Author:Lin, Liwei, Pan, C. T., Hwang, Y. M., Chen, Ying-Chung & Y. M. Hwang & Liwei Lin & Ying-Chung Chen
Language: eng
Format: epub
ISBN: 9781118487822
Publisher: Wiley
Published: 2014-04-28T00:00:00+00:00

4.2.4 Fabrication Process

The pattern of a single-layer, eight-pole, and 12-turn microcoil was successfully fabricated based on the design described in Section 4.2 using the filament-winding method. Figure 4.13a shows a photo of the Cu microcoil prototype. The properties of the Cu microcoil are listed in Table 4.3. In addition, sintering manufacturing technology was applied to fabricate the eight-pole NdFeB hard magnet. The process of sintered technology consists mainly of an anisotropic magnetic field orientation, sintering, and product magnetizing. The magnetized products are shown in Figure 4.13b. The eight-pole magnetic image is displayed clearly with the help of magnetic fluid, as shown in Figure 4.13c. Table 4.4 lists the measured properties of the sintered NdFeB hard magnet after VSM. The sintered NdFeB exhibits a favorably hard magnet with a Br of 1.44 T and an Hc of 975 kA m–1, as shown in Figure 4.14.

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