Lead magnesium niobate–lead titanate (PMN-PT)

Potassium tantalum oxide (KTaO3) is widely used in fields such as electronics and optics
Potassium tantalic acid is a compound with perovskite structure, which is composed of TaO6 Octahedron arranged in a square and potassium ions located in the pores of Octahedron. This structure endows potassium tantalum acid with unique physical and chemical properties
Potassium tantalum acid is a cubic structure ferroelectric material at room temperature. When the temperature decreases, it can transform into an anti ferroelectric phase, which makes it have important applications in ferroelectric components. In addition, potassium tantalum acid also exhibits good optical properties, making it widely used in optical and optoelectronic devices
The unique properties of potassium tantalum acid make it widely used in many fields. For example, in the field of electronics, potassium tantalum acid is used to make capacitors, ferroelectric random access memories, and so on. In the field of optics, potassium tantalum acid can be used to make optical lenses, optical windows, etc
The research and application of potassium tantalum acid are constantly developing. With the progress of scientific research technology, the preparation process of potassium tantalum acid has been improved, which can prepare potassium tantalum acid materials with better quality and lower cost. At the same time, researchers are also exploring new applications of potassium tantalum acid, such as in new solar cells, optical communication, and other fields. It is expected that with the progress of scientific research technology, potassium tantalum acid will have more widespread applications in the future.

Dihedral Technology(DHD) Co., Ltd. manufacture and processing/provide multiple specifications and high quality PMN-PT crystal,targets,materials.

Applications

It can be applied in a wider range of fields than traditional PZT piezoelectric ceramics. It can not only meet the application needs and become the core material for a new generation of high-performance piezoelectric transducers, nonlinear optical devices, and optoelectronic detection devices (such as infrared detectors), but also provide a good research carrier for researchers.

Features

The phase transition temperature and Coercivity field of the product are increased.
Electromechanical coupling coefficient k33 to 0.94; Field induced strain s>1.7%.
The piezoelectric coefficient of d33 is 4-5 times higher than PZT, and the dielectric loss is 1-3 times lower than PZT.

Formula	[Pb(Mg1/3Nb2/3)O3] (1-x)- [PbTiO3] x， X=0.24-0.40
Structure	Tetragonal
Lattice constant	a=4.024 Å (R3m)
Melting Point	1280℃
Growth method	Bridgman
Density	8.1 g/cm3
Hardness	3.5
Thermal Expantion	10.4x10-6/KB
Dielectric constant (polarization)ε	4000-5500@1KHz
Piezoelectric constantd33	1200-1500;1500-2000;2000-2500 pC/N
Curie Temperature	135-150 ℃
Phase Changing Temperature	50-90℃（Monoclinic-etragonal phase transition）
Electric-Mechanic coupling constant	K33(L-mode)：˃ 92%； Kt(T-mode)：59-62%; K33（Beam mode）84-88%
Coercive electric field	2-2.5 kv/cm
Orientation	<100>,<110>,<111>
Orientation tolerance	±0.3-0.5°
Size	5x5mm, 10x10mm, 20x20mm,Dia50.8mm. Can be customized.
Thickness	0.5-10mm
Package	Class 100 clean bag, in single wafer containers, under a nitrogen atmosphere.

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Lead magnesium niobate–lead titanate (PMN-PT)

Applications

Features

Properties