We fabricated a composite cordierite pore structure with alumina (Al2O3) nanowires by a chemical vapor deposition (CVD) process. The Al2O3 nanowires were grown in a horizontal Al2O3 tube furnace by CVD using an aluminum (Al) powder source without the use of any catalysts at a temperature of 1200C and a pressure of 0.27 kPa. The source evaporation region was at the center of the furnace, and the nanowire deposition region was at the rear of the furnace. By the transport of evaporated species by a carrier gas, nanowires grew in the inner pores of the cordierite filter region at the rear of the furnace at 1200C, while nanowires did not grow in the center region at 1400C. We performed nanowire deposition as a function of the deposition time and determined the relationship between the deposition time and BET surface area.
|Journal||International Journal of Applied Ceramic Technology|
|Publication status||Published - 2015 Nov 1|
Bibliographical notePublisher Copyright:
© 2015 The American Ceramic Society.
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry