Hi,
At 05:26 PM 4/17/00 +0200, you wrote:
>Dear All,
>
>I would like to add the following question concerning the standard Si powder.
>Is there someone who has information on the grain size of the 640b Si
>material ?
<snip>
The mean particle size of SRM 640b, via laser scattering, is 7.3
microns. However, the distribution is fairly broad with the fines tail
extending well into the submicron region.
Regards,
Jim
James P. Cline [EMAIL PROTECTED]
Ceramics Division Voice (301) 975 5793
National Institute of Standards and Technology FAX (301) 975 5334
100 Bureau Dr. stop 8523
Gaithersburg, MD 20899-8523 USA
