Cryogenic Actuators and Motors Using Single Crystal Piezoelectrics

Jiang, Xiaoning

doi:10.1063/1.2202607

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…A variety of authors have investigated the piezoelectric properties of single crystal PMN-PT single crystal materials down to 77 K for cryogenic ultrasonic motor designs [16], and stacks including flextensional actuators [17], [18], [19]. These materials demonstrated excellent piezoelectric properties at cryogenic temperatures however their commercial availability is limited and reported stack layer thickness is larger than layers in cofired stacks and this would require higher voltages to produce the same electric fields.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Sherrit

Bădescu

Steeves

et al. 2022

IEEE Open J. Ultrason., Ferroelect., Freq. Contr.

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A variety of applications require precision control at cryogenic temperatures. The next-generation of telescopes are looking to increase apertures in space telescopes and observations in the mid through far infrared regions enabling new science ranging from exoplanet characterization to precision astronomical observations to further refine astrophysics models. Concepts include segmented telescopes which are capable of observations in UV through IR bands, thus driving the need for UV surface performance at cryogenic temperatures. These telescope's segments will require actuators for controlled surface displacements capable of operation at cryogenic temperatures (150K). The work reported in this paper is directed at understanding piezoelectric stack actuator operation down to cryogenic temperatures (100 K) which will provide actuator designers the needed information to model and predict performance. The data reported down to 100 K includes; resonance data, displacement voltage (S vs E) and capacitor voltage (D vs E) curves, stiffness, hysteresis, blocking force, DC resistance measurements, thermal strains and the coefficients of thermal expansion as a function of the electrical boundary conditions. Open-loop control drive strategies and errors are also reported. We apply this data to a surface parallel actuator mirror design.

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Section: Introductionmentioning

confidence: 99%

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Sherrit

Bădescu

Steeves

et al. 2022

IEEE Open J. Ultrason., Ferroelect., Freq. Contr.

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“…[1][2][3][4][5][6] Lead magnoniobate titanate (PMNT) single crystals at the morphotropic phase boundary (MPB) have excellent eletromechanical properties. The lateral piezoelectric strain coefficient d 31 and the electromechanical coupling factor k 31 were measured to be up to -1335 pC/N and 87% respectively after a polarization process along pseudo-cubic [001] c direction.…”

Section: Introductionmentioning

confidence: 99%

Analysis on the anisotropic electromechanical properties of lead magnoniobate titanate single crystal for ring type ultrasonic motors

Shi

Huang

et al. 2016

AIP Advances

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This work discussed the optimized cut of single crystal lead magnoniobate titanate (PMNT) for use of ring type travelling wave ultrasonic motors (USMs), according to anisotropic analysis on electromechanical properties. The selection criterion of crystal orientation relies on the circular uniformity of the induced travelling wave amplitude on the stator surface. By calculating the equivalent elastic coefficient c11 and lateral piezoelectric constant d31, the optimal crystal orientations were proposed for PMNT single crystals poled along different directions. For single crystal poled along <001>c directions, the optimal orientation lies along [001]c with d31=-1335pC/N and k31=0.87. The crystallographic orientation [025]c is the optimized orientation for single crystals poled along <011>c direction with d31=199pC/N and k31=0.55. The optimal orientation of 1R configuration is [332¯]c with a large enhancement of d31 = 1201 and k31=0.92.

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Critical Property in Relaxor‐PbTiO₃ Single Crystals – Shear Piezoelectric Response

Li¹,

Zhang²,

Wang³

et al. 2011

Adv Funct Materials

120

110

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The shear piezoelectric behavior in relaxor-PbTiO3 (PT) single crystals is investigated in regard to crystal phase. High levels of shear piezoelectric activity, d15 or d24 >2000 pC N−1, has been observed for single domain rhombohedral (R), orthorhombic (O) and tetragonal (T) relaxor-PT crystals. The high piezoelectric response is attributed to a flattening of the Gibbs free energy at compositions proximate to the morphotropic phase boundaries, where the polarization rotation is easy with applying perpendicular electric field. The shear piezoelectric behavior of pervoskite ferroelectric crystals was discussed with respect to ferroelectric-ferroelectric phase transitions and dc bias field using phenomenological approach. The relationship between single domain shear piezoelectric response and piezoelectric activities in domain engineered configurations were given in this paper. From an application viewpoint, the temperature and ac field drive stability for shear piezoelectric responses are investigated. A temperature independent shear piezoelectric response (d24, in the range of −50°C to O-T phase transition temperature) is thermodynamically expected and experimentally confirmed in orthorhombic relaxor-PT crystals; relatively high ac field drive stability (5 kV cm−1) is obtained in manganese modified relaxor-PT crystals. For all thickness shear vibration modes, the mechanical quality factor Qs are less than 50, corresponding to the facilitated polarization rotation.

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Cryogenic Actuators and Motors Using Single Crystal Piezoelectrics

Cited by 9 publications

References 4 publications

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Analysis on the anisotropic electromechanical properties of lead magnoniobate titanate single crystal for ring type ultrasonic motors

Critical Property in Relaxor‐PbTiO₃ Single Crystals – Shear Piezoelectric Response

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Cryogenic Actuators and Motors Using Single Crystal Piezoelectrics

Cited by 9 publications

References 4 publications

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Characterization of Multilayer Piezoelectric Stacks Down to 100K

Analysis on the anisotropic electromechanical properties of lead magnoniobate titanate single crystal for ring type ultrasonic motors

Critical Property in Relaxor‐PbTiO3 Single Crystals – Shear Piezoelectric Response

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Critical Property in Relaxor‐PbTiO₃ Single Crystals – Shear Piezoelectric Response