Piezoelectric glass-ceramic for high-temperature applications

Davis, Mark J.; Vullo, Paula; Kocher, Michaelene; Hovhannisyan, Martun; Letz, Martin

doi:10.1016/j.jnoncrysol.2018.03.038

Cited by 16 publications

(13 citation statements)

References 19 publications

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“…However, polarization direction resulting in (002) or (201) orientation is perpendicular to the specimen's surface ( Figure 16) and the charge coefficient d 33 does not seem to be significantly influenced by the orientation. This result is opposed to the theoretical d 33 values as a function of the tilt angle calculated by Davis et al [26]. We have seen that for a given composition, a rise in temperature increases the speed of the crystallization front (Table 2).…”

Section: Discussioncontrasting

confidence: 93%

Structure and Properties of Piezoelectric Strontium Fresnoite Glass-Ceramics Belonging to the Sr–Ti–Si–Al–K–O System

et al. 2019

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Crystallization of strontium fresnoite Sr 2 TiSi 2 O 8 piezoelectric crystals in Sr-Ti-Si-K-Al-O parent glasses is investigated with the aim of showing the influence of composition and crystallization conditions on the microstructure and piezoelectric properties of the resulting glass-ceramic. All the investigated conditions lead to a surface crystallization mechanism that induces a preferential orientation of crystal growth in the glasses. Near the surface, all the glass-ceramics obtained exhibit (002) planes preferentially oriented parallel to their faces. Deeper in the specimens, this preferential orientation is either kept or tilted to (201) after a depth of about 300 µm. The measurement of the charge coefficient d 33 of the glass-ceramic highlights that surface crystallization induces mirror symmetry in the polarization. It reaches 11 to 12 pC/N and is not significantly influenced by the preferential orientation (002) or (201). High temperature XRD shows the stability of the fresnoite phase in the glass-ceramics up to 1000 • C. Mechanical characterization of the glass-ceramics by impulse excitation technique (IET) highlights that the softening of the residual glass leads to a progressive decrease of Young's modulus in the temperature range 600-800 • C. Damping associated to the viscoplastic transition become severe only over 800 • C.

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Section: Discussioncontrasting

confidence: 93%

Structure and Properties of Piezoelectric Strontium Fresnoite Glass-Ceramics Belonging to the Sr–Ti–Si–Al–K–O System

et al. 2019

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“…Degree of crystal orientation influences piezoelectric properties for more than just BSTS glass‐ceramics. Sr‐fresnoite (STS), Ba‐fresnoite (BTS), and lithium borosilicate (LBO) glass‐ceramics are systems that demonstrate piezoelectric sensitivity as a function of heat treatment and spherulite size 154,155 . Piezoelectric properties of STS were compared to those of BTS and LBO glass‐ceramics, as well as a BTS single crystal.…”

Section: Analyzing the Degree Of Orientation And Piezoelectric Propermentioning

confidence: 99%

Piezoelectric glass‐ceramics: Crystal chemistry, orientation mechanisms, and emerging applications

2021

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Piezoelectric materials have coupled mechanical and electrical energies and have long been used in devices for actuators, sensors, energy harvesters, frequency filters, and various additional applications. Piezoelectricity requires a non‐centrosymmetric crystal structure and is therefore confined to materials that possess a periodic crystalline structure. Due to the non‐crystalline nature of glass, piezoelectricity is fundamentally forbidden. However, one way to exploit piezoelectric properties in a glassy matrix is by developing glass‐ceramics that possess controlled growth of a crystalline phase. Growth and orientation of piezoelectric crystals in a glassy matrix is a non‐trivial process that has long been explored to combine the formability of glass with the thermal and mechanical resilience of glass‐ceramics. While extensive work has been done in the field of functional glass‐ceramics, the results are presented in isolated articles and a comprehensive review pertaining to symmetry breaking methods to exploit anisotropic properties in glass‐ceramics has been absent from the literature. Here, we present a global review of the fundamental symmetry requirements for piezoelectricity, the development of polar, piezoelectric glass‐ceramic compositions (specifically those with LiNbO3 and fresnoite‐based crystal phases), and various crystal growth and orientation mechanisms, including relevant kinetic and thermodynamic driving forces. Lastly, we discuss the challenges associated with implementing gradients to drive oriented crystal growth to develop non‐centrosymmetry, and the need for future modeling work to produce adequate time‐temperature‐transformation (TTT) diagrams that take into account kinetic and thermodynamic driving forces for oriented crystal growth. Going beyond technical challenges, we conclude with an examination of current and potential applications for piezoelectric glass‐ceramics that combine the formability of glass with the symmetry‐dependent properties of ceramics.

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“…The Sr-fresnoite (Sr 2 TiSi 2 O 8 ) + added SiO 2 which is a glass based piezoelectric materials revealed the d 33 of 10 pC/N [82] (Table.7). This implied that the weak piezoelectric nature was observed in the case of present glass material.…”

Section: Glass Based Materials (Glx)mentioning

confidence: 99%

A review on giant piezoelectric coefficient, materials and applications

2019

Biointerface Res Appl Chem

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Piezoelectric glass-ceramic for high-temperature applications

Cited by 16 publications

References 19 publications

Structure and Properties of Piezoelectric Strontium Fresnoite Glass-Ceramics Belonging to the Sr–Ti–Si–Al–K–O System

Structure and Properties of Piezoelectric Strontium Fresnoite Glass-Ceramics Belonging to the Sr–Ti–Si–Al–K–O System

Piezoelectric glass‐ceramics: Crystal chemistry, orientation mechanisms, and emerging applications

A review on giant piezoelectric coefficient, materials and applications

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