Correlation between the Properties of Commercial Silicon Nitride Powders and their Densification Behavior

Cheng-Cai Zhao; Mi-Ju Kim; Ha-Neul Kim; Young-Jo Park; Jae-Woong Ko; Jae-Wook Lee

doi:10.3740/MRSK.2025.35.12.620

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2025 Vol.35, Issue 12 Preview Page Next Page

Research Paper

Correlation between the Properties of Commercial Silicon Nitride Powders and their Densification Behavior 질화규소 상용분말의 특성과 치밀화 거동의 상관관계

27 December 2025. pp. 620-626

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Abstract

The quality of various commercial silicon nitride raw powders was compared and evaluated. Various powder characteristics and sinterability of low-cost Chinese powders were compared with those of powders from advanced manufacturers. Powder characteristics such as particle size, agglomeration, impurity content, and β phase fraction, as well as bulk characteristics such as β phase fraction and sintered density were investigated. The Chinese powder showed characteristics that were inferior to the E10 powder from UBE, Japan in most evaluated characteristics, but were comparable to the powders from other advanced manufacturers. However, at high temperature sintering of 1,800 °C, the sintered density of the Chinese powder was noticeably lower than that of the other powders. The correlation between various powder characteristics and sintered density was also quantified using the Pearson correlation coefficient. In the 1,700 °C sintered specimens, the particle size and β phase fraction were found to have a strong negative correlation with the sintered density. In contrast, the 1,800 °C specimens did not show any powder properties with a strong correlation to the sintered density.

Keywords

silicon nitride

commercial powder

sintering

correlation coefficient

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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 : 35
No :12
Pages :620-626
Received Date : 2025-11-12
Revised Date : 2025-12-04
Accepted Date : 2025-12-10
DOI :https://doi.org/10.3740/MRSK.2025.35.12.620

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

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