Properties of CuAg/(BiNaSr)TiO3 multilayer ceramic actuator

Jeong, Soon‐Jong; Lím, D.; Saleem, Muhammad Qaiser; Koo, Bo-Gun; Kim, Min‐Soo

doi:10.1016/j.ceramint.2018.08.225

Cited by 13 publications

(2 citation statements)

References 15 publications

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“…At present, LTCC and piezoelectric stacks are the two main types of actuators [44]. LTCC generally require a ceramic sintering temperature of approximately 900 • C [45,46]. However, the firing temperature of KNN ceramics is typically higher than 1100 • C. Therefore, LTCC are not suitable for KNN-based ceramics.…”

Section: Manufacture Of the Actuatormentioning

confidence: 99%

Fabrication of a Laminated Actuator with Excellent Linearity Using Ground Potassium Sodium Niobate-Based Ceramic Sheets

Zhang,

Hang,

Zheng

et al. 2023

Inorganics

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Linearity is an important factor that affects actuator accuracy. However, the high nonlinearity of KNN piezoelectric ceramics restricts their application in actuators. In this study, we used grinding stress to improve the linearity of ceramic chips, and used them to fabricate a laminated actuator. The ceramic sheets were ground to a thickness of 0.5 mm. During grinding, some areas of the ceramic changed from tetragonal to orthorhombic, owing to the grinding stress. The piezoelectric constant (d33) increased from 198 to 268 pC/N. Notably, the linearity of the ceramics improved. Seven pieces of ground ceramics were bound, to fabricate a laminated multilayer actuator with a total thickness of 3.5 mm. A DC voltage was applied to the actuator, and the displacement was measured. The displacement reached 0.73 μm under a low driving voltage of 200 V. A linear regression analysis of the displacement–voltage relationship was performed, obtaining the regression equation of the actuator. The linearity correlation coefficient was approximately 0.9903, implying that the actuator exhibits a high accuracy. The grinding stress improved the linearity, together with the piezoelectric properties of the ceramic chips, thus improving the actuator accuracy. This research will promote the application of KNN piezoelectric ceramics in actuators.

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Section: Manufacture Of the Actuatormentioning

confidence: 99%

Fabrication of a Laminated Actuator with Excellent Linearity Using Ground Potassium Sodium Niobate-Based Ceramic Sheets

Zhang,

Hang,

Zheng

et al. 2023

Inorganics

View full text Add to dashboard Cite

show abstract

“…Each layer of the piezo stack actuator consists of piezoelectric materials with electrodes separated by suitable insulation. The electrode layers having the same polarity are connected to an external electrode [83,84]. The combined effect of displacement achieved through the application of the electric field across the different piezoelectric layers results in a broader range of motion.…”

Section: Piezoelectric Tube Actuatorsmentioning

confidence: 99%

Recent trends in piezoelectric actuators for precision motion and their applications: a review

Mohith¹,

Upadhya²,

Navin³

et al. 2020

Smart Mater. Struct.

225

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The need for precision positioning applications has enormously influenced the research and development towards the growth of precision actuators. Over the years, piezoelectric actuators have significantly satisfied the requirement of precision positioning to a greater extent with the capability of broad working stroke, high-accuracy, and resolution (micro/nano range) coupled with the advantage of faster response, higher stiffness, and actuation force. The present review intends to bring out the latest advancement in the field of piezoelectric actuator technology. This review brings out the specifics associated with the development of materials/actuators, the working principles with different actuation modes, and classifications of the piezoelectric actuators and their applications. The present article throws light on the design, geometrical features, and the performance parameters of various piezoelectric actuators right from unimorph, bimorph, and multilayer to the large displacement range actuators such as amplified actuators, stepping actuators with relevant schematic representations and the quantitative data. A comparative study has been presented to evaluate the pros and cons of different piezoelectric actuators along with quantitative graphical comparisons. An attempt is also made to highlight the application domains, commercial and future prospects of technology development towards piezoelectric actuators for precision motion applications. The organization of the paper also assists in understanding the piezoelectric materials applicable to precision actuators. Furthermore, this paper is of great assistance for determining the appropriate design, application domains and future directions of piezoelectric actuator technology.

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A low-cost multilayer piezoelectric actuator for ultrasonic motor stator driving fabricated by a low-temperature co-fired ceramic process

Cao²,

Wang³

et al. 2023

Ceramics International

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Properties of CuAg/(BiNaSr)TiO3 multilayer ceramic actuator

Cited by 13 publications

References 15 publications

Fabrication of a Laminated Actuator with Excellent Linearity Using Ground Potassium Sodium Niobate-Based Ceramic Sheets

Fabrication of a Laminated Actuator with Excellent Linearity Using Ground Potassium Sodium Niobate-Based Ceramic Sheets

Recent trends in piezoelectric actuators for precision motion and their applications: a review

A low-cost multilayer piezoelectric actuator for ultrasonic motor stator driving fabricated by a low-temperature co-fired ceramic process

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