| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1625029 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
Alumina ceramic synthesized by millimeter-wave (MM) heating at 1523Â K for 60Â min exhibits higher bending strength (800Â MPa) than conventionally synthesized alumina. We analyzed the relationship between the bending strength and microstructure of both types of alumina samples. A transmission electron microscope (TEM) was used to compare the microstructures of samples synthesized by MM heating at 1523Â K or 1573Â K for various heating times with those synthesized conventionally at 1773Â K. The TEM data reveal that the most significant factors influencing bending strength are not the grain size and grain boundaries, but rather, the pore size and distribution.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Hiromi Nakano, Hiroshi Nakano, Yukio Makino, Saburo Sano,