Two Cores in One Grain in the Microstructure of Silicon Nitride Prepared With Aligned Whisker Seeds

Published

March 1, 2003

Author(s)

D S. Park, T W. Roh, B Hockey, Y Takigawa, B D. Han, H D. Kim, Y Yasutomi

Abstract

The microstructure of silicon nitride with aligned silicon nitride whisker seeds was examined by electron microscopy. Silicon nitride sintered with yttria and alumina showed a core-rim structure. A few grains of the sample sintered with yttria and alumina had more than one core within one grain. This was explained in terms of coalescence of the grains growing from separate cores. A boundary with small misfit was observed by TEM, also supporting the possibility of grain coalescence.

Citation

Journal of European Ceramic Society

Volume

23

Issue

No. 3

Pub Type

Journals

Keywords

aligned whisker seeds, coalescence, core-rim, silicon nitride

Citation

Park, D. , Roh, T. , Hockey, B. , Takigawa, Y. , Han, B. , Kim, H. and Yasutomi, Y. (2003), Two Cores in One Grain in the Microstructure of Silicon Nitride Prepared With Aligned Whisker Seeds, Journal of European Ceramic Society (Accessed April 24, 2024)