 |
|
||||||||||
Details
Alumina of High Reliability by Centrifugal Casting
| Author | Huisman, W.; Graule, T.; Gauckler, L. J. | |
| Year | 1995 | |
| Type | Journal Article | |
| Journal | J. Eur. Ceram. Soc. | |
| Volume | 15 | |
| Issue | 9 | |
| Pages | 811-821 | |
| Custom 1 | JA | |
| Custom 2 | COL | |
| Abstract | Centrifugal casting is a powerful colloidal processing route for massive ceramic parts of high strength and high reliability. Aqueous [alpha]-alumina slurries with up to 56.8 vol.% solids content with a mean particle size of 0.46 [mu]m were deagglomerated by ultrasonic treatment and subsequent filtration. Consolidation was performed at various centrifugal accelerations. Differential sedimentation during centrifugal casting was studied and found to be negligible for slurries with high solids loadings exceeding 50 vol.%. Green bodies with very good particle packing, showing high green densities of 68%TD (theoretical density), as well as narrow pore size distributions were obtained. High sintered densities (>=99.4%TD) with homogeneous and fine microstructures were achieved at sintering temperatures as low as 1400[deg]C. Four-point-bending tests showed an average strength of 540 MPa with a Weibull modulus m of 24. | |
| URL | ||
| Record Number | 197 | |
| Group | nonmet |
Wichtiger Hinweis:
Diese Website wird in älteren Versionen von Netscape ohne
graphische Elemente dargestellt. Die Funktionalität der
Website ist aber trotzdem gewährleistet. Wenn Sie diese
Website regelmässig benutzen, empfehlen wir Ihnen, auf
Ihrem Computer einen aktuellen Browser zu installieren. Weitere
Informationen finden Sie auf
folgender
Seite.
Important Note:
The content in this site is accessible to any browser or
Internet device, however, some graphics will display correctly
only in the newer versions of Netscape. To get the most out of
our site we suggest you upgrade to a newer browser.
More
information
!!! Dieses Dokument stammt aus dem ETH Web-Archiv und wird nicht mehr gepflegt !!!
!!! This document is stored in the ETH Web archive and is no longer maintained !!!
!!! This document is stored in the ETH Web archive and is no longer maintained !!!
