Effect of Process Parameters on the Morphology and Size of Spray-Dried Granule Powder for Fabrication of SiAlON Raw Material

Jae-Hyeong Choi; Soyul Lee; Yoonsoo Han; Sung-Min Lee; Sahn Nahm; Seongwon Kim

doi:10.3740/MRSK.2017.27.12.716

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2017 Vol.27, Issue 12 Preview Page

Effect of Process Parameters on the Morphology and Size of Spray-Dried Granule Powder for Fabrication of SiAlON Raw Material SiAlON 원료분말제조를 위한 분무건조 과립분말의 형상과 크기에 미치는 공정변수효과

December 2017. pp. 716-721

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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.

Keywords

SiAlON

spray drying

granule powder

spherical morphology

spray-drying parameter

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 27
No :12
Pages :716-721
Received Date : 2017-11-17
Revised Date : 2017-11-30
Accepted Date : 2017-11-30
DOI :https://doi.org/10.3740/MRSK.2017.27.12.716

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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