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  6. [Solution Case] Manufacturing of Emitter-Impregnated Porous W Electrodes

[Solution Case] Manufacturing of Emitter-Impregnated Porous W Electrodes

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last updated:Apr 05, 2023

岳石電気
岳石電気
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Conducting genuine trial and error with agility! Our approach to development.

To achieve low-energy discharge, the electrodes must be made of materials with a low work function. One method is to add oxides and manufacture them through sintering; however, if there are too many oxides, the sintering temperature for tungsten may differ, which can result in insufficient sintering conditions. In such cases, tungsten alone can meet the necessary sintering conditions and maintain its physical properties at a high level. Subsequently, emitters that have been manufactured separately and can add easy discharge properties are impregnated into the sintered tungsten, ultimately resulting in a state where both are physically and chemically bonded. To realize this, hundreds or thousands of patterns must be repeatedly experimented with and developed. This diligent trial-and-error approach, carried out with agility, is the attitude and characteristic of our company's development efforts. *For more details, please refer to the external link page or feel free to contact us.*

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[Solution Case] Manufacturing of Emitter-Impregnated Porous W Electrodes

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  • Related Link - https://www.takeishi.co.jp/solution/case4.html

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Research and development, small-scale prototyping, contract manufacturing - from material development to assembly.

Research and development, small-scale prototyping, contract manufacturing - from material development to assembly.

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<Exhibition of Electronic Sources and Difficult-to-Cut Materials> will be exhibited at the Space Science and Technology Federation Conference from November 25 to November 28.

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Yakeshi Electric will exhibit at the Space Science and Technology Union Conference to be held in November 2025. ■69th Space Science and Technology Union Conference https://smartconf.jp/content/sstc69/ Dates: November 25 (Tuesday) - November 28 (Friday), 2025 (4 days) The Space Science and Technology Union Conference is a large-scale event where people involved in space, including JAXA, various research institutions, universities, and private companies, gather together. Our company develops electronic sources for small satellites (including impregnated cathodes and LaB6) and manufactures peripheral components such as sensors and power supply units. This time, we plan to expand our display of electronic sources and include additional components such as tantalum and Inconel! In particular, electronic sources like impregnated cathodes are often purchased from overseas due to the limited number of domestic manufacturers, which can lead to difficulties in fine adjustments and flexibility. However, our company offers: ● Control of porosity and selection of emitters ● Manufacturing according to desired sizes and shapes ● Production starting from one unit ● Stable domestic procurement We can provide solutions tailored to your research and development needs! Please feel free to consult with us.

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Aerospace and Spacecraft Development Exhibition

Nagoya Manufacturing World / Aerospace and Space Equipment Development Exhibition

  • Seminar・Event

At our booth, we will introduce our technology that provides a seamless process from material development to assembly for difficult-to-machine materials and high melting point metals such as tungsten, molybdenum, and tantalum. We are also here to assist you with various challenges from the development stage, so please feel free to stop by.

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岳石電気

岳石電気

Manufacturing and processing contract

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Yakeshi Electric Co., Ltd. is a specialized group in rare metals and tungsten. Our strengths lie in "speedy and flexible" service, and we are dedicated to manufacturing with a sincere commitment to customer satisfaction. We do not offer "standard products" or "catalog items"; instead, we have created hundreds of thousands of products primarily focused on precision processing of tungsten and high-melting-point metals, almost all of which are made-to-order and made in Japan. Please feel free to contact us with your requests.

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