Lead-free piezoceramics

  title={Lead-free piezoceramics},
  author={Yasuyoshi Saito and Hisaaki Takao and Toshihiko Tani and Tatsuhiko Nonoyama and Kazumasa Takatori and Takahiko Homma and Toshiatsu Nagaya and Masaya Nakamura},
Lead has recently been expelled from many commercial applications and materials (for example, from solder, glass and pottery glaze) owing to concerns regarding its toxicity. Lead zirconium titanate (PZT) ceramics are high-performance piezoelectric materials, which are widely used in sensors, actuators and other electronic devices; they contain more than 60 weight per cent lead. Although there has been a concerted effort to develop lead-free piezoelectric ceramics, no effective alternative to… Expand
Lead-free piezoelectrics: Current status and perspectives
In the last few years, there has been tremendous effort to develop lead-free ferroelectric ceramics with high piezoelectric properties by various doping and alloying routes. Several material systemsExpand
PZT to Lead Free Piezo Ceramics: A Review
The growth of piezo science is phenomenal since the discovery of piezoelectricity in 1880. Among various piezoelectric materials, lead zirconate titanate (PZT) is a very popular and exhaustivelyExpand
Analysis of Lead-Free Piezoceramic-Based Power Ultrasonic Transducers for Wire Bonding
  • A. Mathieson, D. DeAngelis
  • Materials Science, Medicine
  • IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
  • 2016
A modified variant of bismuth sodium titanate is employed in a power ultrasonic transducer used for metal welding during the manufacture of semiconductors and it is reported that BNT-based transducers exhibit good stability, and can withstand a stack preload level of 90 MPa without depoling. Expand
Perovskite Lead-Free Piezoelectric Ceramics
Lead zirconate titanate (PZT)-based piezoelectric materials are the most widely used piezoelectric materials for electromechanical devices. However, due to the toxicity of lead, there is a strongExpand
Lead-Free Piezoceramics: Revealing the Role of the Rhombohedral-Tetragonal Phase Coexistence in Enhancement of the Piezoelectric Properties.
It is believed that the general strategy and design principles described in this study open the possibility of obtaining (K,Na)NbO3-based lead-free ceramics with enhanced properties, expanding their application range. Expand
Applications of lead-free piezoelectric materials
The piezoelectric properties of lead-free ferroelectric materials have been dramatically improved over the past two decades. For some limited applications, their properties have reached the sameExpand
Perspective on the Development of Lead‐free Piezoceramics
A large body of work has been reported in the last 5 years on the development of lead-free piezoceramics in the quest to replace lead–zirconate–titanate (PZT) as the main material forExpand
High Strain in (K,Na)NbO3-Based Lead-Free Piezoelectric Fibers
Until now, lead zirconate titanate (PZT)-based ceramics are the most widely used in piezoelectric devices. However, the use of lead is being avoided due to its toxicity and environmental risks.Expand
Development of Lead-Free Piezoceramic
Lead-based piezoceramic, such as lead zirconate titanate (PZT), is widely used because it has excellent piezoelectric properties near the morphotropic phase boundary (MPB). However, because ofExpand
Lead-free piezoelectric thick films based on potassium sodium niobate solutions
Lead-based piezoelectric materials such as lead zirconate titanate (Pb(Zrx,Ti1−x)O3 or PZT) and lead meta-niobate (PbNb2O6) are the most widely used materials nowadays in the market for piezoelectricExpand


Ferroelectric ceramics : History and technology
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Properties of piezoelectric ceramics in the solid-solution series lead titanate-lead zirconate-lead oxide: Tin oxide and lead titanate-lead hafnate
Co mpositional proximity to a morphotropic t ransformation between two ferroelectric solid-solution phases seems to yie ld ceramic transducers having desirable properties over a wide range of teExpand
Measurements of complex piezoelectric d33 constant in ferroelectric ceramics under high electric field driving
A measurement system has been designed and constructed which is capable of automatic data collection for complex piezoelectric d33 constant (amplitude and phase), field-induced polarization andExpand
Origin of ferroelectricity in perovskite oxides
FERROELECTRIC materials are characterized by a switchable macroscopic polarization. Most technologically important ferroelectrics are oxides with a perovskite structure. The origin of theirExpand
Piezoelectric Properties of Bismuth Layer-Structured Ferroelectric Ceramics with a Preferred Orientation Processed by the Reactive Templated Grain Growth Method
Dense CaBi4Ti4O15 (CBT) and Na0.475Ca0.05Bi4.475Ti4O15 (NCBT) ceramics with a highly preferred {001} orientation were prepared by the reactive templated grain growth (RTGG) method. Plate-likeExpand
Hot Pressing of Potassium‐Sodium Niobates
Compositions in the system KNbO3-NaNbO2 have been hot-pressed to yield ceramics with relative densities greater than 99%. Because these materials lack any degree of pyroplastic behavior, temperaturesExpand
High Curie temperature piezocrystals in the BiScO3-PbTiO3 perovskite system
Perovskite ferroelectric single crystals in the (1−x)BiScO3-xPbTiO3 (BSPT) system were grown using a flux method. The Curie temperature of rhombohedral BSPT(43/57) crystals was found to be about 404Expand
The structural, dielectric, and piezoelectric properties of the solid solution (Na1-x,Lix,)NbO2 were studied. Solid solution ceramics with x values up to 0.14 occur as a single phase. The phaseExpand
Hysteresis Curve of X-Ray Diffraction Peak Intensity in Lead Zirconate Titanate Ceramics
A new system has been developed for the measurement of motion of ferroelectric domains under high electric field driving in ferroelectric materials. This system can simultaneously measure theExpand
Measurement System for Electric Field-Induced Strain by Use of Displacement Magnification Technique
A new, simple, and precise method has been developed for the measurement of electric field-induced strain, which is based on the displacement magnification technique. This technique is stable againstExpand