@article{121366, author = {Y. B. Son and C. H. Kim and S. D. Jang and J. Liu and M. Sarikaya and I.A. Aksay}, title = {Crystallization behavior of cordierite-based glass with excess SiO2 and Al2O3 at initial-stage}, abstract = { Crystallization behavior of cordierite-based glass with excess SiO2 and Al2O3 (CM glass) was studied at the initial crystallization stage. Two kinds of glass-in-glass phase separation occurred during the heat treatment of glass powder. The secondary glass-in-glass phase separation, which consists of an SiO2-rich phase and an Al2O3-rich phase significantly affects the crystallization of the glass and the resultant microstructures of the crystallized glass. Mullite nucleated first in the Al2O3-rich amorphous phase which is no longer a stable glass-forming region. Metastable mu-cordierite crystallized in the SiO2-rich amorphous phase and grew rapidly. A fine-grained cordierite-mullite composite with mullite as the grain boundary phase was produced. }, year = {1994}, journal = {Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes \& Review Papers}, volume = {33}, pages = {1101-1108}, month = {02/1994}, isbn = {0021-4922}, language = {eng}, }