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

Renoirt, Marie-Sophie; Maury, N.; Dupla, Florian; Gonon, Maurice

doi:10.3390/ceramics2010008

Cited by 11 publications

(11 citation statements)

References 24 publications

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“…that the Ba substitution modifies the T g of the parent glass but not that of the residual glass. This indicates that the surface crystallization rate is probably more influenced by characteristics of the residual glass, as it was highlighted in Reference [ 40 ], than those of the parent glass. Conversely, the clear increase in volume crystallization with the Ba content can be related to the change in the parent glass characteristics.…”

Section: Resultsmentioning

confidence: 59%

“…Parent glasses were prepared according to the procedure presented in Reference [ 40 ]. Reagent grade SrCO 3 or BaCO 3 (Alfa Aesar, Karlsruhe, Germany, 99.99%), TiO 2 (VWR, Fontenay sous Bois, France, 99.99%), SiO 2 (Sigrano, Maastricht, The Netherlands, 97–99.98%), Al 2 O 3 (Almatis, Ludwigshafen, Germany, +99%) and K 2 CO 3 (VWR, Fontenay sous Bois, France, +99%) were wet-mixed in isopropanol.…”

Section: Methodsmentioning

confidence: 99%

“…The four compositions investigated are presented in Table 1 . The composition Ba(0) corresponds to ST 1.3S + 0.2K 2 O + 0.1Al 2 O 3 previously investigated [ 31 , 40 ]. In the compositions Ba(10), Ba(25) and Ba(50), 10 at.%, 25 at.% and 50 at.% of barium are respectively substituted to the strontium.…”

Section: Methodsmentioning

confidence: 99%

“…On basis of this latter work, Renoirt et al [ 40 ] investigated the crystallization of STS from parent glasses belonging to the SrO–TiO 2 –SiO 2 –Al 2 O 3 –K2O system. The composition 2SrO 1TiO 2 3.3SiO 2 0.2K 2 O 0.1Al 2 O 3 (reference ST 1.3S + 0.2K 2 O + 0.1Al 2 O 3 ), crystallized at 900 °C, shows the best crystal orientation, but replicability tests highlight that the (002) preferential orientation observed at the surface of most of the time changes to (201) after a depth of about 300 µm.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Partial Ba Substitutions on the Crystallization of Sr2TiSi2O8 (STS) Glass–Ceramics and on the Generation of a SAW Signal at High Temperatures

et al. 2021

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Because of their characteristics, including a d33 of 10–15 pC/N and high stability up to temperatures over 1000 °C, polar glass–ceramics containing fresnoite crystals can be regarded as highly effective materials for applications requiring piezoelectricity at high temperatures. In the present paper we investigate barium substitutions in an Sr-fresnoite (STS) glass–ceramic. Two aspects are studied: first, the effect of the substitution on the preferential orientation of the crystallization, and second, the ability of the glass–ceramics to generate and propagate surface acoustic waves (SAW) at high temperatures. XRD analyses show that a 10 at.% substitution of Ba allows us to keep a strong preferential orientation of the (00l) planes of the fresnoite crystals down to more than 1 mm below the surfaces. Higher substitution levels (25 and 50 at.%), induce a non-oriented volume crystallization mechanism that competes with the surface mechanism. SAW devices were fabricated from glass–ceramic substrates with 0, 10 and 25 at.% Ba substitutions. Temperature testing reveals the high stability of the frequency and delay for all of these devices. The glass–ceramic with a 10 at.% Ba substitution gives the strongest amplitude of the SAW signal. This is attributed to the high (00l) preferential orientation and the absence of disoriented volume crystallization.

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Section: Resultsmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Partial Ba Substitutions on the Crystallization of Sr2TiSi2O8 (STS) Glass–Ceramics and on the Generation of a SAW Signal at High Temperatures

et al. 2021

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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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Case Studies in the X-ray Diffraction of Ceramics

Gonon

2021

Encyclopedia of Materials: Technical Ceramics and Glasses

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

Cited by 11 publications

References 24 publications

Effect of Partial Ba Substitutions on the Crystallization of Sr2TiSi2O8 (STS) Glass–Ceramics and on the Generation of a SAW Signal at High Temperatures

Effect of Partial Ba Substitutions on the Crystallization of Sr2TiSi2O8 (STS) Glass–Ceramics and on the Generation of a SAW Signal at High Temperatures

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

Case Studies in the X-ray Diffraction of Ceramics

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