Improvement on Magnetic Properties of P/M Cr-Type Stainless Steels.

Kawamura, Makoto; Kohno, Tomio

doi:10.4262/denkiseiko.65.145

Cited by 4 publications

(3 citation statements)

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“…Table I also shows the values for the 1-m-gap resonators, which were calculated from the values for the 4-m-gap resonators by using the relation in ref. 16:…”

Section: Narrow Gap Effectmentioning

confidence: 99%

Evaluation of a Single-Crystal-Silicon Microelectromechanical Systems Resonator Utilizing a Narrow Gap Process

Hashimoto¹,

Ito²,

Tanigawa

et al. 2011

Jpn. J. Appl. Phys.

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To investigate a higher frequency microelectromechanical systems (MEMS) resonator, mechanical behaviors and electrical characteristics on a single-crystal-silicon MEMS resonator, utilizing a narrow gap process, have been evaluated. The size reduction for the resonators leads to a decrease in output signal. To overcome this problem, an increase in electromechanical coupling coefficient is required. To investigate the effect of the reduction of the gap between a beam and a driving electrode, two types of 100 kHz MEMS resonator with different gaps have been fabricated and compared. It has been observed that the resonator with a narrow gap (1 µm) has a larger displacement amplitude, as well as a larger phase transition, than that with a 4 µm gap, which suggests that the gap reduction is effective. Then, a 10 MHz MEMS resonator has been fabricated by using the narrow gap process with a focused-ion beam (FIB). The resonant vibration for the fabricated device has been observed at 11.262 MHz. To further improve the resonators, it is suggested that the substrate vibration near the beam resonant frequency should be suppressed and that a smooth surface of the gap should be fabricated.

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“…Table I also shows the values for the 1-m-gap resonators, which were calculated from the values for the 4-m-gap resonators by using the relation in ref. 16:…”

Section: Narrow Gap Effectmentioning

confidence: 99%

Evaluation of a Single-Crystal-Silicon Microelectromechanical Systems Resonator Utilizing a Narrow Gap Process

Hashimoto¹,

Ito²,

Tanigawa

et al. 2011

Jpn. J. Appl. Phys.

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“…This magnetic alloy has been revealed to be excellent in pulse response when it is used in a solenoid valve of an electronic fuel injector. This allow is attracting attention as a novel soft magnetic material, and thus many research reports on its material and magnetic properties have been published [5][6][7][8][9][10]. However, Fe-Cr Alloys made by MIM process have been studied only by Sano, et al [11].…”

Section: Introductionmentioning

confidence: 99%

Magnetic and Mechanical Properties of Fe-Cr-Si-Mo Alloys by MIM Process

Kimura¹,

Shimizu

Watari

2021

MSF

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In recent years, metal injection molding (MIM) has been adopted as a process for manufacturing a solenoid valve which is a component of an electronic fuel injector, and PB permalloy components have been commercialized. However, Ni, an element of PB permalloy, is expensive material, making it difficult to produce the fuel injector component at a low cost. As a solution to this problem, we studied the magnetic and mechanical properties of Fe-Cr-Si alloys by MIM process. These results revealed that the magnetic and mechanical properties were improved by reducing Cr content. However, reducing Cr content is expected to reduce corrosion resistance of the alloys. In this study, Fe-Cr-Si-Mo alloy specimens containing Mo to improve corrosion resistance are manufactured by MIM process, and we investigated the magnetic and mechanical properties. These results revealed that Fe-10Cr-3Si-2Mo alloy is a material with an excellent balance between magnetic and mechanical properties.

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“…A representative Fe-Cr alloy contains approximately 13% of Cr, and has a ferrite phase stabilized by a small amount of Si or Al [3,4]. This magnetic alloy has been revealed to be excellent in pulse response when it is used in a solenoid valve of an electronic fuel injector, and receives attention as a novel soft magnetic material, and thus many research reports have been made for its material and magnetic properties [5][6][7]. However, Fe-Cr alloys by MIM process was reported only by Sano, et al [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cr and Si Contents on the Magnetic and Mechanical Properties of Fe-Cr-Si Alloys by MIM Process

Kimura¹,

Shimizu

Watari

2020

KEM

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In recent years, metal injection molding (MIM) has been adopted as a process of manufacturing a solenoid valve which is a component of an electronic fuel injector, and PB permalloy component has been commercialized. However, Ni that is an element of PB permalloy is expensive material, and it makes difficult to produce the injector component in low cost. To reduce the production cost, we can use Fe-Cr alloys, although there are few studies on Fe-Cr alloys by MIM process. In this study, Fe-Cr-Si alloy specimens were manufactured by MIM process and the magnetic and mechanical properties were investigated. From these results, we found that high performance Fe-Cr-Si alloy can be obtained by setting Si content to 3% and reducing Cr content.

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Improvement on Magnetic Properties of P/M Cr-Type Stainless Steels.

Cited by 4 publications

References 0 publications

Evaluation of a Single-Crystal-Silicon Microelectromechanical Systems Resonator Utilizing a Narrow Gap Process

Evaluation of a Single-Crystal-Silicon Microelectromechanical Systems Resonator Utilizing a Narrow Gap Process

Magnetic and Mechanical Properties of Fe-Cr-Si-Mo Alloys by MIM Process

Effect of Cr and Si Contents on the Magnetic and Mechanical Properties of Fe-Cr-Si Alloys by MIM Process

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