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| Abstract No.: |
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Scheduled at:
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Friday, May 06, 2022, Hall G2 10:00 AM
New Processes II
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| Title: |
Hybrid aerosol deposition as an outstanding prospective for dense barrier ceramic coatings deposition on different substrates
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| Authors: |
Mohammed Shahien* / National Institute of Advanced Industrial Science and Technology, Japan
Kentaro Shinoda / AIST, Japan
Jun Akedo/ AIST, Japan
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| Abstract: |
Deposition of a protective dense environmental barrier layers is a promising solution to improve the reliability and environmental durability of the next-generation turbines. In this context, spraying of fine particles could enhance the formation of fine dense coating microstructures with improved properties. However, direct spraying of the fine particles is still a big challenge with the main drawbacks of poor flowability and the difficulty of injecting. In AIST we are focusing on the spraying of the fine particles via different spraying technologies including suspension plasma spraying, as well as deposition of the fine solid particles directly by aerosol deposition (AD) and plasma-assisted aerosol deposition (so-called Hybrid Aerosol Deposition; HAD. The HAD is a new coating window to spray the fine ceramic particles via the implementation of a low-power rf-plasma source to assist the aerosol deposition at room temperature.
This study will discuss the utilization of HAD as an outstanding technology for deposition of dense ceramic coatings on different substrate materials and 3D deposition capability. In addition, the coating properties, as well as the deposition phenomena, will be discussed.
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