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- Title
Microstructure and Thermal Conductivity of Sintered Reaction-Bonded Silicon Nitride: The Particle Size Effects of MgO Additive.
- Authors
Go, Shin-Il; Li, Yinsheng; Ko, Jae-Woong; Kim, Ha-Neul; Kwon, Se-Hun; Kim, Hai-Doo; Park, Young-Jo
- Abstract
The particle size effect of MgO as a sintering additive on the thermal conductivity of sintered reaction-bonded silicon nitride (SRBSN) was investigated. It was revealed that the size of MgO is critical for thermal conductivity with regard to the microstructural evolution process. That is, the abnormal grain growth promoted by an inhomogeneous liquid-phase distribution led to higher thermal conductivity when coarser MgO was added, whereas a relatively homogeneous liquid-phase distribution induced moderate grain growth and lower thermal conductivity when finer MgO was added.
- Subjects
MICROSTRUCTURE; THERMAL conductivity; SINTERING; SILICON nitride; GRAIN growth
- Publication
Advances in Materials Science & Engineering, 2018, p1
- ISSN
1687-8434
- Publication type
Article
- DOI
10.1155/2018/4263497