Porous molybdenum disilicide-based material prepared by...

Details Porous molybdenum disilicide-based material prepared by... Porous molybdenum disilicide-based material prepared by...

2005-03-29

2005-03-29

Nguyen, Ngoc-Yen (Department: 1754)

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

C419S002000, C419S023000, C419S038000

Reexamination Certificate

active

06872374

ABSTRACT:
A porous molybdenum disilicide-based material prepared by preheating a preform consisting of size-controlled molybdenum (Mo) powder and content-controlled silicon (Si) powder and igniting the preform to initiate self-propagating high temperature synthesis, and a method for preparing the same, are disclosed. The method comprises the steps of a) mixing molybdenum (Mo) powder and silicon (Si) powder in the stoichiometric ratio of 1:2; b) molding the mixed powder into a preform; c) preheating the preform under inert atmosphere; and d) igniting the top end of the preheated perform. The porous molybdenum disilicide-based material can control its pore size by appropriately controlling the size of molybdenum (Mo) powder, the content of silicon (Si) powder and preheating condition. Therefore, since the pore size gradient of the porous material is possible to form, the porous material can be used for filters with improved dirt-holding capacity.

REFERENCES:
patent: 5364442 (1994-11-01), Sekhar
patent: 5380409 (1995-01-01), Munir et al.
patent: 5794113 (1998-08-01), Munir et al.
Yi, H.C. et al, “Self-propagating high-temperature (combustion) synthesis (SHS) of powder-compacted materials”, 1990, Journal of Materials Science, 25, pp. 1159-1168, no month.

Affiliated with

Also associated with

Rating

Porous molybdenum disilicide-based material prepared by... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porous molybdenum disilicide-based material prepared by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous molybdenum disilicide-based material prepared by... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3373609