Abstract
The porous silicon nitride was prepared by reaction-bonded raw silicon powder and silicon nitride whiskers, adding 30wt% pore-forming agent and polyvinyl alcohol. The impacts of silicon nitride whiskers on the properties of reaction-bonded porous silicon nitride ceramics were particular studied. The results showed that the dielectric constant and dielectric loss were all raised with the increase of addition of silicon nitride whiskers. The silicon nitride whiskers deteriorate the dielectric properties of porous silicon nitride ceramics.
| Original language | English |
|---|---|
| Pages (from-to) | 109-111 |
| Number of pages | 3 |
| Journal | Gongneng Cailiao/Journal of Functional Materials |
| Volume | 40 |
| Issue number | 1 |
| State | Published - Jan 2009 |
Keywords
- Dielectric properties
- Pore-forming agent
- Porous silicon nitride
- Silicon nitride whiskers