| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
| Presentation Title |
Aqueous Colloidal Processing of WC Based Materials with Alternative Metals as Sintering Aids or Binder |
| Author(s) |
Antonio Javier Sanchez-Herencia, Macarena Garcia-Ayala, Begoņa Ferrari, Jose Ygnacio Pastor |
| On-Site Speaker (Planned) |
Antonio Javier Sanchez-Herencia |
| Abstract Scope |
Severe environments require of new materials designs where the properties of the compounds can be exploited in an effective manner. This work presents the use of aqueous slurries of WC with nanosized nickel and with metallic tungsten as a valid method to achieve a high dispersion of the phase and promote the manufacture of dense composites. By controlling the media conditions using an anionic dispersant slurries of WC with 5vol% of Nickel and with metallic W has been formulated. Dispersion conditions have been optimized in terms of dispersant and total solid contents with rheological measurements.
WC with 5 vol% of Nickel has been sintered with high density through a liquid-phase sintering process. These CerMets show a good mechanical properties with high hardness and toughness. In the case of using metallic tungsten, only a WC/W2C composite is obtained after sintering by SPS. |