LiNbO3-based bimorph piezoactuator for fast X-ray experiments: Static and quasistatic modes

Kulikov, A. S.; Благов, А. Е.; Marchenkov, N. V.; Targonsky, A. V.; Eliovich, Ya. A.; Pisarevsky, Yu. V.; Kovalchuk, M. V.

doi:10.1016/j.sna.2019.03.041

Cited by 25 publications

(6 citation statements)

References 22 publications

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“…2). Descriptions of the fastening design, functional characteristics and features of the piezoactuator usage in X-ray diffraction experiments are given elsewhere (Blagov et al, 2016(Blagov et al, , 2017Kulikov et al, 2019;Marchenkov et al, 2019). It was also used as a fasttunable adaptive element for in situ study of the external mechanical stress in crystals by X-ray diffraction in the experiment with time resolution (Eliovich et al, 2018).…”

Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

See 1 more Smart Citation

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

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First results are presented for synchrotron radiation diffraction in a paratellurite (TeO2) single crystal investigated with a new experimental scheme consisting of a standard monochromator and a relatively narrow slit for collimation and monochromatization of an incident beam. The Bragg case reflection geometry is used. The monochromator, a pair of Si crystals, maintains the initial direction of the beam propagation. The theory is developed for a precise description of the instrumental function in such a scheme. A new rocking curve registration technique with use of an adaptive bending piezoactuator is applied for the first time with the aim to record the narrow diffraction peaks with high accuracy. A sample is attached to one edge of the bidomain lithium niobate single crystal piezoactuator used. The piezoactuator is bent under the influence of an electric field and it changes the angular position of the sample with a very small step. The experimental curves are compared with the calculated diffraction rocking curves of a perfect paratellurite crystal, both the theoretical one and the one calculated taking into account the instrumental function. An instrumental function account allows a complete coincidence of the simulated curves with the experimental results to be obtained if the experimental curve does not coincide with the theoretical rocking curve. A small discrepancy between the theory and the experimental data has been discovered in cases where the incident beam is sufficiently collimated and monochromated. This indicates the presence of a certain number of lattice defects in the sample under study.

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Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

“…In view of this, a new technique for accurate DRC registration using a bending piezoactuator in the quasi-static operational mode, described in detail by Kulikov et al (2019), was used in this work. In this mode, the piezoactuator receives a low-frequency triangle control electrical signal (0.5 Hz in this experiment).…”

Section: Experimental Schemementioning

confidence: 99%

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

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“…Quasi-static operating mode (Kulikov et al, 2019) is provided by a triangular low-frequency (less than 10 Hz) control signal. This mode simplifies data processing since the signal amplitude dependence on time is linear.…”

Section: Adaptive X-ray Optics and Time-resolved Studiesmentioning

confidence: 99%

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Akkuratov¹,

Благов²,

Eliovich³

et al. 2022

J Appl Cryst

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A novel laboratory diffractometer for time-resolved high-resolution X-ray diffraction studies of reversible and irreversible processes in crystalline materials under uniaxial compression and vibration is described. Temporal resolution up to milliseconds for double-crystal and up to tens of seconds for triple-crystal diffraction experiments was achieved with a single adaptive bending X-ray optics element. Design solutions and techniques for applying and controlling uniaxial compression and vibration for in situ time-resolved studies are described. Results are presented for various static and dynamic load experiments, controlled by a system based on the TANGO Controls framework. Rocking curves of paratellurite (TeO2) under quasi-static compression and lithium fluoride (LiF) under ultrasonic vibration were measured with temporal resolution. Reciprocal-space maps of LiF under static compression and quartz (SiO2) under ultrasonic vibration were collected.

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“…[10] Such structures can be used, for example, as active elements of precise positioning piezoelectric actuators. [11,12] The diffusion coefficients of copper ions in LN are relatively high (e.g., 500 times higher compared to iron ions [13,14] ), and the required annealing temperatures are relatively low (up to 800°C [10] ), which makes this material an attractive diffuser. However, the changes of mechanical properties of diffusion-modified layers depending on the diffusion depth remain unexplored, although this knowledge is important, [15][16][17][18] in particular for the analysis of actuators.…”

Section: Doi: 101002/crat201900117mentioning

confidence: 99%

“…It has been recently shown that the single domain LN surfaces, which have an electrical charge of the same sign (in other words, spontaneous polarization vectors are anti‐parallel in these surfaces) can be bonded through the interdiffusion of copper film, deposited on one of the surfaces . Such structures can be used, for example, as active elements of precise positioning piezoelectric actuators . The diffusion coefficients of copper ions in LN are relatively high (e.g., 500 times higher compared to iron ions), and the required annealing temperatures are relatively low (up to 800 °C), which makes this material an attractive diffuser.…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Sugak

Syvorotka

Yakhnevych

et al. 2019

Crystal Research and Technology

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Spatial changes of optical and mechanical properties of doped lithium niobate (LN, LiNbO3) single crystals are investigated. The crystals are doped with copper ions by thermal diffusion at elevated temperatures. LiNbO3 crystal absorption spectra are recorded in a direction perpendicular to the direction of diffusion. The concentrations of copper ions are calculated using the Smakula–Dexter formula. To determine a relation between changes of optical and mechanical properties, the hardness profiles of the doped crystals are investigated by the nanoindentation technique. Young's modulus and hardness are specified in accordance with the Oliver–Pharr method.

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LiNbO3-based bimorph piezoactuator for fast X-ray experiments: Static and quasistatic modes

Cited by 25 publications

References 22 publications

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

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