Re: Tricks for transmission sample preparation between foils

2017-02-10 Thread François Goutenoire 

Thank every one for the propositions.

Find here after the result of a test (vaseline + n-heptane)

http://perso.univ-lemans.fr/~fgouten/Transmission_Tricks

Best Regards, François

Le 08/02/2017 13:35, François Goutenoire a écrit :

Dear Rietveld users,

We are currently using transmission flat sample on our diffractometer. 
To prepare the transmission flat sample we are using mylar 15microns 
or kapton. We put the sample between 2 mylar foils.


I would like to know if there is some tricks in order to nicely put 
the powder in the center of the circular sample older and if there is 
also some tricks in order to avoid electrostatic problems.


Thank you very much in advance,


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--
*
Pr. Francois GOUTENOIRE
e-mail: francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Département des Oxydes et Fluorures
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17082
Formation SASX CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17228

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Re: Tricks for transmission sample preparation between foils

2017-02-09 Thread Young, Lindsay Kay 
Hello Rietvelders,


I propose that you could secure powder in a thin layer on a single piece of 
kapton or other substrate using dilute collodion or vacseal. I find that both 
work best when diluted quite a bit. Collodion will sometimes peel off of its 
substrate, while vacseal does not (remains sticky) and can be dissolved in 
acetone. I haven't personally done transmission, I just know that those two 
materials can be very helpful :) best of luck!


Lindsay




From: rietveld_l-requ...@ill.fr <rietveld_l-requ...@ill.fr> on behalf of 
srihari velaga <vsrihari_k...@yahoo.co.in>
Sent: Thursday, February 9, 2017 12:08:57 AM
To: François Goutenoire; rietveld_l@ill.fr
Subject: Re: Tricks for transmission sample preparation between foils


Dear Pr. Francois GOUTENOIRE,

In case of kapton tape there is a chance of getting diffraction peak at low 
angle, I prefer to use magic scotch tape.

Some times to avoid the background from this tape as well, I use small punch in 
the thick paper card and pack the material in that hole for transmission XRD, 
this I find better than any thing else.

With best regards,
Srihari. V

"ఎందరో మహానుభావులు, అందరికీ వందనములు"
--
-
HP, BARC, Mumbai.


On Wednesday, 8 February 2017 9:35 PM, François Goutenoire 
<francois.gouteno...@univ-lemans.fr> wrote:


Dear Rietveld users,

We are currently using transmission flat sample on our diffractometer.
To prepare the transmission flat sample we are using mylar 15microns or
kapton. We put the sample between 2 mylar foils.

I would like to know if there is some tricks in order to nicely put the
powder in the center of the circular sample older and if there is also
some tricks in order to avoid electrostatic problems.

Thank you very much in advance,

--
*
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr<mailto:francois.gouteno...@univ-lemans.fr>
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Département des Oxydes et Fluorures
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17082
Formation SASX CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17228


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Re: Tricks for transmission sample preparation between foils

2017-02-08 Thread srihari velaga 
 
Dear Pr. Francois GOUTENOIRE,
In case of kapton tape there is a chance of getting diffraction peak at low 
angle, I prefer to use magic scotch tape.
Some times to avoid the background from this tape as well, I use small punch in 
the thick paper card and pack the material in that hole for transmission XRD, 
this I find better than any thing else.
With best regards,Srihari. V "ఎందరో మహానుభావులు, అందరికీ వందనములు"
---HP,
 BARC, Mumbai. 

On Wednesday, 8 February 2017 9:35 PM, François Goutenoire 
 wrote:
 

 Dear Rietveld users,

We are currently using transmission flat sample on our diffractometer. 
To prepare the transmission flat sample we are using mylar 15microns or 
kapton. We put the sample between 2 mylar foils.

I would like to know if there is some tricks in order to nicely put the 
powder in the center of the circular sample older and if there is also 
some tricks in order to avoid electrostatic problems.

Thank you very much in advance,

-- 
*
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Département des Oxydes et Fluorures
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17082
Formation SASX CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17228


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RE: Tricks for transmission sample preparation between foils

2017-02-08 Thread gili cohen taguri 
Dear Rietveld users,

Following Pr. Francois Goutenoire's question, I would like to add another 
question: I wonder how do you deal with electrostatic powders sample 
preparation though in Reflection mode. Do you use Kapton/mylar tape or any 
solvent to disperse the powder?
How does it affect the results?

Thanks in advance,
Gili



-Original Message-
From: rietveld_l-requ...@ill.fr [mailto:rietveld_l-requ...@ill.fr] On Behalf Of 
Fran?ois Goutenoire
Sent: Wednesday, February 08, 2017 2:35 PM
To: rietveld_l@ill.fr
Subject: Tricks for transmission sample preparation between foils

Dear Rietveld users,

We are currently using transmission flat sample on our diffractometer. 
To prepare the transmission flat sample we are using mylar 15microns or kapton. 
We put the sample between 2 mylar foils.

I would like to know if there is some tricks in order to nicely put the powder 
in the center of the circular sample older and if there is also some tricks in 
order to avoid electrostatic problems.

Thank you very much in advance,

--
*
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Département des Oxydes et Fluorures
Institut des Molécules et des Matériaux du Mans IMMM - UMR CNRS 6283 Université 
du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17082
Formation SASX CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17228

++
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Tricks for transmission sample preparation between foils

2017-02-08 Thread François Goutenoire 

Dear Rietveld users,

We are currently using transmission flat sample on our diffractometer. 
To prepare the transmission flat sample we are using mylar 15microns or 
kapton. We put the sample between 2 mylar foils.


I would like to know if there is some tricks in order to nicely put the 
powder in the center of the circular sample older and if there is also 
some tricks in order to avoid electrostatic problems.


Thank you very much in advance,

--
*
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Département des Oxydes et Fluorures
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17082
Formation SASX CNRS
https://cnrsformation.cnrs.fr/stage.php?stage=17228

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