We tried a number of diluents a few years ago and settled on diamond powder
as the best option (low MAC and very few lines in the diffraction pattern).
Unfortunately our bottle of diamond powder does not have the manufacturer
listed on the label (we opted for material with a nominal grain size of 0.5
micron). I have found the name and address of our local supplier, but I do
not know of their source of material. If you are unable to source the
material yourself, I can follow up on this lead. A quick web search using
the keywords "diamond powder" turned up about 5 or 6 different
manufacturers/suppliers.
Re: amorphous boron - at the time that we were looking for appropriate
diluents, we tried several different sources of boron, including some
specifically listed as "amorphous boron". At no time during these tests did
we find any boron that was remotely amorphous. All materials has strong
crystalline peaks and some had very complex XRD patterns, rendering them
unsuitable for use as a diluent.
Cheers
o----------------------oo0oo---------------------------o
Ian Madsen
CSIRO Minerals
Box 312
Clayton South 3169
Victoria
AUSTRALIA
Phone +61 3 9545 8785 direct
+61 3 9545 8500 switch
0417 554 935 mobile
FAX +61 3 9562 8919
Email [EMAIL PROTECTED]
o----------------------oo0oo---------------------------o
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
> Sent: Friday, 27 July 2001 8:03 PM
> To: [EMAIL PROTECTED]
> Subject: RE: diamond powder source
>
>
> Several people suggested amorphous boron. The trick is that
> my experiments
> ultimately will be performed at 600?C and various gas
> pressures, which is
> why diamond appears to be the better choice. I don't know how
> stable boron
> is?
> Jens
>
> On Fri, 27 Jul 2001 [EMAIL PROTECTED] wrote:
>
> > Hello everybody,
> > I am considering using diamond powder for diluting some
> samples with very
> > high absorption.
> > Does anyone know a good source for such a powder?
> >
> > Thanks
> > Jens Wenzel Andreasen
> >
>
