Aktiviteter pr. år
Abstrakt
Aluminium was found to play a key role in the process of forming a mechanically stable and highly porous, granular structure of 4H silicon carbide. The material was prepared by a high temperature reaction of the elemental constituents. The reactions were carried out under different background atmospheres, including nitrogen. Ternary carbides containing Al, Si and N were formed in the process, and these are believed to be responsible for the final outcome of the process at the highest reaction temperatures, in the form of pure well-connected grains of 4H-SiC, forming a strong and rigid microstructure with high porosity. The Al containing compounds function as structural promoters for the 4H polytype recrystallization. This is expected − and was partly shown − to take place through substitution with 4H-SiC and the evaporation of all other constituents during the high temperature sintering step. When extruded into a honeycomb structure, this sintered pure mesoporous SiC final product turns out to be ideal for a combined diesel particulate filter with support for catalysts in the pores.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Materials Science Forum |
Vol/bind | 821-823 |
Sider (fra-til) | 970-973 |
ISSN | 0255-5476 |
DOI | |
Status | Udgivet - 2015 |
Begivenhed | 10th European Conference on Silicon Carbide and Related Materials - Grenoble, Frankrig Varighed: 21. sep. 2014 → 25. sep. 2014 Konferencens nummer: 10 |
Konference
Konference | 10th European Conference on Silicon Carbide and Related Materials |
---|---|
Nummer | 10 |
Land/Område | Frankrig |
By | Grenoble |
Periode | 21/09/2014 → 25/09/2014 |
Emneord
- Mesoporous
- silicon carbide
- liquid phase sintering
- diesel particulate filter
- catalyst support
Fingeraftryk
Dyk ned i forskningsemnerne om 'The role of Aluminium in the synthesis of Mesoporous 4H Silicon Carbide'. Sammen danner de et unikt fingeraftryk.Relaterede Aktiviteter
- 1 Organisering af eller deltagelse i konference
-
10th European Conference on Silicon Carbide and Related Materials
Jeanette Hvam (Deltager)
21. sep. 2014 → 25. sep. 2014Aktivitet: Deltagelse i faglig begivenhed › Organisering af eller deltagelse i konference