Hi
We have had an HTK16 (1600C max temp) (Manufactured by Anton
Paar) working in conjunction with a Panalytical X'pert PRO MPD. I have
run all sorts of samples; polymers, glasses, inorganics etc from 25C
to 1200C without any problems both under air, N2 and in vacuum. The
furnace is easy to install and remove and clean.
I hope this helps
Yours
Rory.
P.S. Don't use LaB6 at temperature as a calibration as it reacts with
the Pt strip - my one mistake.
Quoting Francois Goutenoire <francois.gouteno...@univ-lemans.fr>:
Hi
We have for now 5 years an HTK12 (1200°C maximum) with a MPD + X’Cellerator.
This is really a nice ‘combinaison’, with new fast detectors
(X’Cellerator, Vantec …..) you can have a nice counting statistic in
few minutes (15-25 minutes).
Recently I have explore the WO3 phase transitions as a school case
for second order phase transitions, from RT to 930°C in 22 Hours
Step in temperature 25°C (37 temperatures scanned) measured from 12
to 90° (2 theta).
It gives very large counting I Max 160000 for the more symmetric
compound at 930°C.
/I can send the data if asked./
I order to increase the intensity, we use larger slits (manual
divergent slit 0.5°/1° and also larger Sollers Slit 0.04° instead of
the usual 0.02°).
The thermal linearity of the HTK12 is really good, test with some
Y2O3 from 20 to 1200°C during the testing phase, the homogeneity is
also really good this is a furnace not a strip. Calibration of the
temperature is not so evident for really precise value, but new in
models the thermocouple is closer to the sample.
In our lab, for few years the furnace was used during single nights,
mounting time (10 to 15 minutes).
If, you can tested your system, Y2O3 is really nice.
Leopoldo Suescun wrote:
Hi,
May I ask your help with this not specifically Rietveld-related question?
I'm helping a colleague buy a new powder diffractometer with high
temperature attachment but I myself have little experience with this
particular attachment.
I'd appreciate if anyone could comment on the three most popular Rigaku,
Panalytical and Bruker systems that offer these attachments. Mainly:
simplicity of operation/mounting, temperature stability, typical data
collection speeds (comparing Rietveld quality data in a typical range
20-120 with/without high-T chamber) and price/value relation.
He's on a hurry so comments are welcome and will be useful before Wednesday.
Thanks in advance for your kind help.
Leo
--
Dr. François Goutenoire
Maître de Conférences, IUT Le Mans
Laboratoire des Oxydes et Fluorures, UMR6010
Avenue Olivier Messiaen, 72085 Le Mans, Cedex 9
************************************
Dr R.M. Wilson,
Experimental Officer & RPS
School of Eng. and Materials,
G27 & G30 X-ray Laboratories,
Francis Bancroft Building
Queen Mary College
University of London
Mile End Road
LONDON E1 4NS
UK
Tel: +44 (0)20 7882 7938
Fax: +44 (0)20 7882 7931
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