Abstract
SiAlON-based ceramics are some of the most typical ceramic materials used as cutting tools for HRSA(Heat Resistant Super-Alloys). SiAlON can be fabricated using ceramic processing, such as mixing, granulation, compaction, and sintering. Spray drying is a widely-used method for producing a granular powder of controlled morphology and size with flowability. In this study, we report a systematic investigation aimed at optimizing spherical granule morphology by controlling spray-drying parameters such as gas flow and feed rate. Before spray drying, the viscosities of the raw material slurries were also optimized with the amount of dispersant added.
Original language | English |
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Pages (from-to) | 716-721 |
Number of pages | 6 |
Journal | Korean Journal of Materials Research |
Volume | 27 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2017 Dec 1 |
Bibliographical note
Funding Information:This research was supported by a grant from the Industrial Strategic Technology Development Program (Grant#10067065, Development of coated hardmental/ cBN/ceramic cutting tools for machining heat resistant alloys with high hardness, utilized innovation & energy plants industry), funded by the Ministry of Trade, Industry & Energy(MOTIE) and Korea Evaluation Institute of Industrial Technology(KEIT), Republic of Korea.
Publisher Copyright:
© Materials Research Society of Korea.
Keywords
- Granule powder
- SiAlON
- Spherical morphology
- Spray drying
- Spray-drying parameter
ASJC Scopus subject areas
- General Materials Science