Re: How to increase alumina washcoat on ceramic substrate

From: Do-Woan Kim (surisu_at_dreamwiz.com)
Date: 10/22/04 

Date: 21 Oct 2004 17:01:40 -0700

tomwalz@email.msn.com (Tom Walz) wrote in message news:<9e9abe33.0410210714.1f56fc3e@posting.google.com>...
> Could we get more info, Please?
>
> What is the substrate?
> How are you preparing it?
> Why not solid alumina?
>
> tom

Hi, Tom.
Thanks for response.

Substrate is commercial cordierite honeycomb with 400 cpsi.
I tried with 50% solid percent gamma alumina slurry(pH=3.5), after
dipping substrate on slurry for 1 minute, finally air blowing..
Actually am thinking this solid % of 50% is too high..
I don't understanding last question of solid alumina, I'm using gamma
alumina as solid powder and ball milling was applied to adjust to
particle size of 2~10 nm size.

Do-Woan Kim