Controlled Crystallization of the Amorphous Phase in Silicon Nitride Ceramics |
| |
| Authors: | DAWN A. BONNELL TSENG-YING TIEN MANFRED RUHLE |
| |
| Affiliation: | Department of Ceramic Sciences, IBM Thomas Watson Research Center, Yorktown Heights, New York 10598;Department of Materials Science and Engineering, The University of Michigan, Ann Arbor, Michigan 48109;Department of Materials Science, University of California, Santa Barbara, California 93106 |
| |
| Abstract: | The controlled crystallization of amorphous second phases in SiAlON is demonstrated in two systems. In a magnesia-containing SiAlON, cordierite crystallized on annealing after hot-pressing. Similarly, garnet crystallized in yttria-contain-ing SiAlON. The resulting microstructures are characterized by TEM and qualitatively related to changes on room-temperature toughness and high-temperature deformation. |
| |
| Keywords: | |
|
|
