Specific Process Knowledge/Characterization/XRD/XRD Powder: Difference between revisions
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<i> Unless otherwise stated, this page is written by <b>DTU Nanolab internal</b><br> | <i> Unless otherwise stated, this page is written by <b>DTU Nanolab internal</b><br> | ||
All images and photos on this page | All images and photos on this page belongs to <b>DTU Nanolab</b></i> | ||
=The XRD Powder setup= | =The XRD Powder setup= | ||
[[Image:machine front with on-off button.JPG|right|thumb|300px|The XRD Powder located in the basement of building 346 at Nanolab, Room 904.]] | [[Image:machine front with on-off button.JPG|right|thumb|300px|The XRD Powder located in the basement of building 346 at Nanolab, Room 904.]] | ||
The "XRD powder" is an Aeris Research edition benchtop X-ray diffractometer from Malvern Panalytical. It is meant for phase analysis of powders, is easy to use, and offers the option of making measurements while heating the sample in a N<sub><sub>2</sub></sub> atmosphere. The setup allows X-ray diffraction measurements in Bragg-Brentano mode (i.e., Theta-2Theta measurements where the incident and diffraction arms of the goniometer are coupled). We have a very limited selection of optics for this instrument, so there is little that the user can adjust. | The "XRD powder" is an Aeris Research edition benchtop X-ray diffractometer from Malvern Panalytical. It is meant for phase analysis of powders, is easy to use, and offers the option of making measurements while heating the sample in a N<sub><sub>2</sub></sub> atmosphere. The setup allows X-ray diffraction measurements with a Cu source in Bragg-Brentano mode (i.e., Theta-2Theta measurements where the incident and diffraction arms of the goniometer are coupled). We have a very limited selection of optics for this instrument, so there is little that the user can adjust. | ||
The instrument has a 1D strip detector, which makes data acquisition very efficient, so you can measure your samples relatively quickly. The detector also has a fluorescence suppression option, so you can measure samples containing for instance iron with the copper radiation. | |||
Please contact the equipment responsible if you would like to mount the special sample holder for heating during the measurement. | Please contact the equipment responsible if you would like to mount the special sample holder for heating during the measurement. | ||
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==Process information== | ==Process information== | ||
*Tips for choosing among the scan and hardware parameters | *Tips for choosing among the scan and hardware parameters including fluorescence suppression: [[/Measurement tips| XRD Powder measurement tips]] | ||
*Malvern Panalytical has a large collection of webinars on XRD. You have to register to view them but the amount of email you receive afterwards is modest, so it's worth it in my opinion (Rebecca, July 2022). Some useful webinars include: | *Malvern Panalytical has a large collection of webinars on XRD. You have to register to view them but the amount of email you receive afterwards is modest, so it's worth it in my opinion (Rebecca, July 2022). Some useful webinars include: | ||
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!style="background:silver; color:black;" align="center" width="60"|Purpose | !style="background:silver; color:black;" align="center" width="60"|Purpose | ||
|style="background:LightGrey; color:black"| Crystal structure analysis | |style="background:LightGrey; color:black"| Crystal structure analysis | ||
|style="background:WhiteSmoke; color:black"| | |style="background:WhiteSmoke; color:black"| | ||
*Phase ID | *Phase ID | ||
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0.4 mm x 12 mm (Line) | 0.4 mm x 12 mm (Line) | ||
|- | |- | ||
!style="background:silver; color:black" align="center" valign="center" rowspan=" | !style="background:silver; color:black" align="center" valign="center" rowspan="4"|Goniometer | ||
|style="background:LightGrey; color:black"| | |style="background:LightGrey; color:black"| | ||
Scanning mode | Scanning mode | ||
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Fixed with rotation | Fixed with rotation | ||
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!style="background:silver; color:black" align="center" valign="center" rowspan="2"|Optics | !style="background:silver; color:black" align="center" valign="center" rowspan="2"|Optics | ||
|style="background:LightGrey; color:black"|Incident side | |style="background:LightGrey; color:black"|Incident side | ||
Latest revision as of 15:59, 13 May 2024
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Unless otherwise stated, this page is written by DTU Nanolab internal
All images and photos on this page belongs to DTU Nanolab
The XRD Powder setup
The "XRD powder" is an Aeris Research edition benchtop X-ray diffractometer from Malvern Panalytical. It is meant for phase analysis of powders, is easy to use, and offers the option of making measurements while heating the sample in a N2 atmosphere. The setup allows X-ray diffraction measurements with a Cu source in Bragg-Brentano mode (i.e., Theta-2Theta measurements where the incident and diffraction arms of the goniometer are coupled). We have a very limited selection of optics for this instrument, so there is little that the user can adjust. The instrument has a 1D strip detector, which makes data acquisition very efficient, so you can measure your samples relatively quickly. The detector also has a fluorescence suppression option, so you can measure samples containing for instance iron with the copper radiation.
Please contact the equipment responsible if you would like to mount the special sample holder for heating during the measurement.
The user manual(s), user APV(s), technical information, and contact information can be found in LabManager:
XRD Powder in LabManager - requires login
Process information
- Tips for choosing among the scan and hardware parameters including fluorescence suppression: XRD Powder measurement tips
- Malvern Panalytical has a large collection of webinars on XRD. You have to register to view them but the amount of email you receive afterwards is modest, so it's worth it in my opinion (Rebecca, July 2022). Some useful webinars include:
- Better XRD data quality with good sample preparation
- A beginner’s tutorial which also mentions sample preparation about half-way through and explains very briefly some of the issues that can arise from displaced samples, not having a thick enough sample layer, odd sized sample particles, etc.
Software
To adjust measurement parameters and analyze the data, you will need dedicated software which is described here: XRD Powder software
| Equipment | XRD Powder | |
|---|---|---|
| Purpose | Crystal structure analysis |
|
| X-ray generator |
Maximum rated output |
600 W |
|
Rated tube voltage |
40 kV | |
|
Rated tube current |
15 mA | |
|
Type |
Sealed tube | |
|
Target |
Cu | |
|
Focus size |
0.4 mm x 12 mm (Line) | |
| Goniometer |
Scanning mode |
incident / receiver coupled |
|
Goniomenter radius |
145 mm | |
|
Minimum step size |
0.001° (3.6") | |
|
Sample stage |
Fixed with rotation | |
| Optics | Incident side |
|
| Receiver side |
| |
| Substrates | Measurement temperature |
May be heated in N2 up to 500 °C |
| Substrate size |
Only for powders | |
| Allowed materials |
All materials have to be approved | |