Powder Accessories - STOE & Cie GmbH

Accessories philosophy

Below you will find the selection of accessories directly produced by STOE and a selection of third-party systems which are commonly integrated in our diffractometers. However, we are not limited to this selection! One of our defining strengths is to implement components according to our customer’s wishes. Thus, if you have a specific accessory in mind, but cannot find it on this site, please do not hesitate to contact us and our application scientists will be happy to assist you.

Transmission sample holders

TRANSMISSION SAMPLE HOLDER

Transmission sample holders are excellent for quick overview measurements as well as Rietveld quality data collections. Powdered substances of every origin can be measured including polymer fibers or foils.
Even with minuscule sample amounts finest layers can be prepared on STOE’s zero scattering foils, making this technique preferable for transmission measurements of highly absorbing materials.

CHARACTERISTICS

Easy and clean preparation of samples on
zero scattering foils
Convenient loading of samples including exposure mask with variable sizes
Sample displacement due to variable sample thicknesses can be corrected by a micrometer screw
Sample rotation in a high precision ball-bearing to avoid reflex broadening and result in low noise

AVAILABLE FOR: STADI P / MP / COMBI

TRANSMISSION SAMPLE CHANGER

The transmission sample changer is set up as an additional pre-aligned unit and controlled via the WinX^POW software. Users benefit from fast sample throughput, proven reliability and high-quality data sets. Each file is carrying its unique identifier accessible through the flexible WinX^POW file management system, while batches can also be controlled through an XML sheet.

Capacity of up to 30 samples
Loaded and Unloaded simply by stacking
Controlled by STOE´s Software Package WinX^POW

AVAILABLE FOR: STADI P / MP

Combinatorial SAMPLE CHANGER

The motorized x-y stage of the combinatorial analysis sample holder enables rapid measurements, even with minimal sample material, including liquids in transmission mode. Due to its layout, combinatorial and high throughput analyses can easily be conducted.

Easily exchangeable inserts for up to 96 samples
Other inserts possible due to variable x-y grid
Height adjustment by micrometer screw
Software driven position control, batch mode possible

AVAILABLE FOR: STADI P COMBI

Capillary sample holders

Capillary sample holder

Capillary measurements minimize preferred orientationand resulting in narrow FWHM and symmetric profiles leading to accurate intensities for structure solution and Rietveld refinement. The preparation in sealed capillaries is suitable for air sensitive and hygroscopic materials. Moreover, this setup is compatible with low temperature attachments.

CHARACTERISTICS

Glass capillaries between 0.1 and 2.0 mm diameter
A precise goniometer head, aligned by video CCD control, guarantees coincidence of capillary and diffractometer axis

AVAILABLE FOR: STADI P / MP / COMBI

capillary sample changer

Automated, high throughput measurements of, e.g., air or moisture sensitive samples are enabled by the capillary sample changer on which three guide bushes for sample insertion make further alignment unnecessary. The position of the capillaries in the X-ray beam and their exposure time are controlled by STOE’s WinX^POW software.

Capacity of up to 10 capillaries
Additional height adjustment for optimized sample position in the beam
No capillary alignment necessary

AVAILABLE FOR: STADI P / MP

PERMANENTly ALIGNED CAPILLARY SAMPLE HOLDER

Applications

A permanently aligned capillary stage speeds up the measurement preparation process and is suitable for qualitative and quantitative phase analysis. The data acquisition itself can be sped up by using a fast Mythen 2K/3K/4K detector.

Auto-alignment due to three guide bushes
Easiest capillary exchange
Sample rotation for excellent statistics
Height adjustment for an optimal sample position in the X-ray beam
Capillaries between 0.1 and 1.1 mm

AVAILABLE FOR: STADI P / MP / COMBI

GANDOLFI SAMPLE HOLDER

Applications

The Gandolfi sample holder is specifically designed to minimize preferred orientation effects in a measurement.

High-precision goniometer head
45° phi axis
Permanent rotation

AVAILABLE FOR: STADI P / MP / COMBI

Reflection sample holders

REFLECTION SAMPLE HOLDER

The reflection mode has to be applied in all cases where the transmission or the capillary techniques cannot be used, e.g. for measurements of bulk materials, liquids or thin layers.

CHARACTERISTICS

Precise height adjustment of the sample using a reference blade
Zero background sample inserts with or without cavity

AVAILABLE FOR: STADI P / MP

REFLECTION SAMPLE CHANGER

The reflection sample changer is set up as an additional unit, where sample heights can be individually adjusted. Users benefit from fast sample throughput, proven reliability and high-quality data sets. Each file is carrying its unique identifier accessible through the flexible WinX^POW file management system.

Capacity of up to 12 samples
Easy height adjustment for each sample (max. thickness 20 mm)
Controlled by STOE’s Software Package WinX^POW

AVAILABLE FOR: STADI P / MP

REFLECTOMETRY SAMPLE HOLDER

Applications

Sample tilting and precession have a large impact on reflectometry data quality, thus, STOE’s tilt and precession free reflectometry sample holder has been specifically designed for accurate alignment for, e.g., experiments to determine film thickness, composition and interface roughness, standard powder diffractometry or grazing incidence experiments for phase analysis of thin films.

Reference blade for reproducible height adjustment
Micrometer-controlled sample alignment with digital sample position display
Manual tilt correction possible
Sample spinning for wide-angle X-ray diffraction

AVAILABLE FOR: STADI P / MP

MULTI-PURPOSE ANALYZER STAGE

Applications

Powder diffraction can also be employed to align larger single crystalline samples according to their crystallographic axes. Sample alignment is necessary for certain physical property measurements or prior to grinding and cutting.

Standard IUCr goniometer head mount
Motorized and PC-controlled x and y translation ± 10 mm with a resolution of 5 µm
Motorized and PC-controlled rotation
Manual micrometer-controlled z-translation (0-50 mm) for the alignment of a crystal surface or a sample array to the reference blade

AVAILABLE FOR: STADI P / MP / COMBI

HIGH TEMPERATURE ATTACHMENTS

STOE HT1

The STOE STADI P and STADI MP are the ideal equipment for the observation and evaluation of phase transitions in non-ambient environments. Therefore STOE has developed the capillary furnace series for powder investigations at high temperatures:

The basic version from RT to 1223 K (950 °C)
The extended T version from RT to 1773 K (1500 °C)
The furnace with low temperature option for a range from 223 K (–50 °C) to 1223 K (950 °C)
130° exit window

Every STOE furnace is delivered with a temperature controller containing power supply, flow meter for cooling water control and interface to the PC. All three versions provide sample spinning to avoid effects from preferred orientation and offer a temperature stability better than ± 1 K in the whole range. The temperature programs are easily set-up and executed and the STOE furnaces can be mounted on every vertical transmission diffractometer. Heating elements are available for capillaries with diameters from 0.2 to 1.0 mm.

AVAILABLE FOR: STADI P / MP

STOE INSITU HT2

The new STOE INSITU HT2 high temperature reaction chamber has been designed to study solid state and solid state – gas reactions in capillaries in a temperature range between RT and 1823 K (1550 °C) with the possibility of using extremely small sample volumina and gas flows. To reduce effects of preferred orientation the furnace offers sample oscillation and it fits on every vertically mounted STOE transmission diffractometer.

Temperature range from RT to 1823 K (1550°C)
Gas flow between 0.01 and 0.1 l/min
Sample volume from 5 to 20 mm³
For Mo or Ag Kα₁-radiation
Sapphire or glass capillaries
130° exit window

AVAILABLE FOR: STADI P / MP

THIRD PARTY NON-AMBIENT SAMPLE STAGES

In addition to our own systems we regularly install third party non-ambient environments. For example high temperature chambers in reflection geometry by Anton Paar or cooling devices by Oxford Cryosystems. If you are interested in another non-ambient sample stage, we are open to implementing it in our machines.

Battery Sample holders

In-operando coin cell holder

The STOE coin cell sample holder was conceptualized based on a patent by Herklotz et al. [1] and was implemented to facilitate the connection to a potentiostat and offer charge-discharge measurements during a diffraction experiment on a STOE transmission diffractometer. In-operando analyses of structural changes during battery cycling are a convenient form of studying new electrode materials.

[1] Herklotz, M., Weiß, J., Giebeler, L. and Ahrens, E., German Patent DE102015214177B3, 2015.

CHARACTERISTICS

CR2032 coin cell with Kapton® windows
Slewing motion to improve counting statistics
Two pole contact to connect to a potentiostat

AVAILABLE FOR: STADI P / MP / COMBI

In-Operando Pouch cell holder

This sample stage allows to mount a pouch cell on the diffractometer for static state or, when a potentiostat is connected to the pouch cell, in-operando measurements. The cells are simply clamped into position.

CHARACTERISTICS