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Material with excellent piezoelectric property and preparation method of material

A piezoelectric performance, excellent technology, applied in the field of piezoelectric ceramics, can solve problems such as not having piezoelectric performance, and achieve the effect of simple synthesis process

Inactive Publication Date: 2014-12-17
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has broad application prospects in piezoelectric transducers, sensors and drivers, and has attracted close attention from scholars at home and abroad. However, in addition to BiScO 3 -PbTiO 3 Except for piezoelectric materials, other systems do not have excellent piezoelectric properties, such as Bi(Ni 1 / 2 Ti 1 / 2 )-PbTiO 3 ( d 33 =260pC / N) [3] , Bi(Mg 3 / 4 W 1 / 4 )O 3 -PbTiO 3 ( d 33 =150pC / N) [4] , Bi(Sc 3 / 4 Ga 1 / 4 )O 3 -PbTiO 3 ( d 33 =124pC / N) [5] and other systems

Method used

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  • Material with excellent piezoelectric property and preparation method of material
  • Material with excellent piezoelectric property and preparation method of material
  • Material with excellent piezoelectric property and preparation method of material

Examples

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Effect test

Embodiment 1

[0030] Utilize this invention to prepare 0.38Bi(Ni 1 / 2 f 1 / 2 )O 3 -0.62PbTiO 3 . Weigh 5.0000 g PbO, 3.1986 g Bi 2 o 3 , 0.5127 g NiO, 1.7890 g TiO 2 and 1.4449 g HfO 2 . Grind the powder thoroughly in a mortar, then calcinate the powder at 850°C for 6 hours, press the sample after cooling to room temperature with the furnace, and sinter the obtained sheet at 1180°C for 2 hours to obtain a dense high-pressure powder. Electrical properties of ceramic samples, piezoelectric coefficient d 33 =446pC / N, Curie temperature T C =290°C. figure 1 and figure 2 is 0.38Bi(Ni 1 / 2 f 1 / 2 )O 3 -0.62PbTiO 3 X-ray diffraction pattern and scanning electron microscope diffraction pattern.

Embodiment 2

[0032] Using this invention to prepare 0.39Bi(Ni 1 / 2 f 1 / 2 )O 3 -0.61PbTiO 3 . Weigh 5.0000 g PbO, 3.3366 g Bi 2 o 3 , 0.5349 g NiO, 1.7890 g TiO 2 and 1.5073 g HfO 2 . Fully grind to 1800 mesh in a mortar, then calcinate the powder at 850°C for 6 hours, press the sample after cooling to room temperature with the furnace, and finally sinter the obtained tablet at 1210°C for 2 hours, you can get Ceramic sheet samples with high piezoelectric properties, piezoelectric coefficient d 33 =434pC / N, Curie temperature T C =275°C. image 3 is 0.39Bi(Ni 1 / 2 f 1 / 2 )O 3 -0.61PbTiO 3 The x-ray diffraction pattern of .

Embodiment 3

[0034] Utilize this invention to prepare 0.30Bi(Ni 1 / 2 f 1 / 2 )O 3 -0.70PbTiO 3 . Weigh 5.0000 g PbO, 2.2366 g Bi 2 o 3 , 0.3585 g NiO, 1.7890 g TiO 2 and 1.0104 g HfO 2 . Grind the powder thoroughly in a mortar, then calcinate the powder at 600°C for 10 hours, press the sample after cooling to room temperature with the furnace, and sinter the obtained sheet at 1500°C for 1 hour to obtain a dense high-pressure powder. Electrical properties of ceramic samples.

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Abstract

The invention discloses a material with excellent piezoelectric property and a preparation method of the material, belonging to the field of piezoceramic materials. A chemical structure general formula of the material with excellent piezoelectric property is (1-x)BiMeO3-xPbTiO3, wherein Me=Ni1 / 2Hf1 / 2 or Ni1 / 2Zr1 / 2; and 0.5<x<1. The preparation method comprises the following steps of: based on Bi2O3, NiO, HfO2, ZrO2, PbO and TiO2 as raw materials, weighing Bi2O3, NiO, HfO2 or ZrO2, PbO and TiO2 which accord with the chemical dose ratio according to the chemical structure general formula, uniformly grinding, calcining a sample after grinding for 1-10h at the temperature of 600-1000 DEG C, then tabletting the sample, and sintering the tabletted sample for 1-15h at the temperature of 800-1500 DEG C to obtain the material with excellent piezoelectric property. The material is low in preparation cost and simple in synthetic process, thus having larger scientific research and practical values.

Description

technical field [0001] The invention relates to a piezoelectric functional material and a preparation method thereof, belonging to the field of piezoelectric ceramics, in particular to a material with excellent piezoelectric performance and a preparation method thereof. Background technique [0002] Piezoelectric ceramics are widely used in electronic science and technology, including electroacoustic transducers, underwater acoustic transducers and ultrasonic transducers, as well as other sensor and driver applications. The market is huge, and it is one of the most important electronic materials. It has become an important functional material in the defense industry, civilian industry and daily life. In 2011, Richard E. Eitel [1] proposed Bi( Me )O 3 -PbTiO 3 Material system (of which Me +3 is a cation with a relatively large radius, such as Sc, Y, Yb, In, etc.). literature Japanese Journal of Applied Physics 40, 5999 (2001) reported that BiScO 3 -PbTiO 3 The mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622C04B35/49
Inventor 陈骏潘昭戎阳春樊龙龙邓金侠于然波邢献然
Owner UNIV OF SCI & TECH BEIJING
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