Effect of SrO on piezoelectric, dielectric and ferroelectric properties of (Ba1−x Srx) (Ti0.98 Zr0.02)O3 lead free piezoceramics

Advanced Materials Science and Technology

2021

Tape casting is a preferred technique for fabrication of micron sized thin sheets and multi-layered stacks. This technique can be used for all types of materials available in powder form. Therefore, this is a versatile technique used for fabrication of capacitors, piezoelectric multi-layered stacks, functional gradient materials, low temperature co-fired ceramics (LTCC) and so on involving all types of metals, ceramics and polymers. In this article, tape casting method is reviewed including the slurry preparation and role of various ingredients. This technique is widely used for fabrication of piezoelectric multi-layered stacks in order to reduce the "driving voltage" up to few volts for micro-meter sized thin layers. The preparation methodology of slurry making for tape casting and role of various ingredients are discussed in detail including multi-layered fabrication of devices. Typical tape casting examples of lead zirconate titanate (PZT) and barium strontium zirconate titanate (BSZT) lead free piezo materials are also presented. Various application of tape casting in recent years has been reviewed.

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Section: Barium Strontium Zirconate Titanate (Bszt) Multilayered Stackmentioning

confidence: 99%

Tape Casting Technique for Fabrication of Piezoelectric Ceramics and Other Multilayered Devices-A Review

Advanced Materials Science and Technology

2021

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“…etc. on BZT were studied to improve piezoelectric, dielectric and ferroelectric properties [13][14][15][16][17][18]. The effect of MgTiO 3 on dielectric and relaxor behavior of Ba (Zr 0.35 Ti 0.65 ) O 3 was studied by Chou et al [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of MgO on piezoelectric, dielectric and ferroelectric properties of (Ba1−x Mgx) (Ti0.98 Zr0.02) O3 lead-free piezoceramics

Chandraiah

J Mater Sci: Mater Electron

2015

Self Cite

Effect of MgO on ferroelectric, dielectric, piezoelectric properties of (Ba 1-x Mg x ) (Ti 0.98 Zr 0.02 ) O 3 , (x = 0.00, 0.01, 0.015, 0.02 and 0.03 mol) lead free piezoceramics was studied. The powders were prepared by conventional solid state reaction method, calcined at 1000°C for 4 h. XRD patterns of the calcined powders show phase pure perovskite structure. The calcined powders were deagglomerated, pressed into pellets and sintered at 1150°C for 3 h. Scanning electron microscopy studies of thermally etched sintered pellets show sub-micron sized grains for undoped BZT and 3-5 lm sized grains for 0.01 mol MgO doped BZT. Energy dispersive X-ray analysis of MgO doped BZT sample confirms the presence of dopants very close to their stoichiometric compositions. The piezoelectric charge constant (d 33 = 164 pC/N), dielectric constant (K = 2348) and remnant polarization (P r = 3.3 lC/cm 2 ) were maximum for BZT samples containing 0.01 mol of MgO.

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PZT and Lead-Free Piezo Ceramics for Aerospace and Energy Applications

Handbook of Advanced Ceramics and Composites

2020