Research Article

Microstructure and Thermal Conductivity of Sintered Reaction-Bonded Silicon Nitride: The Particle Size Effects of MgO Additive

Table 1

The particle size and composition of the specimens.

SpecimenMaterialParticle size (D50, µm)
SiY2O3MgO

AcSi + additive (coarse)1.01.55.9
AfSi + additive (fine)1.61.6

The size of as-received Si, Y2O3, and MgO is around 4.0, 1.6, and 6.0 µm, respectively.