Unlock instant, AI-driven research and patent intelligence for your innovation.

Electronic ceramic material for sensor and preparation method thereof

A technology for electronic ceramics and sensors, applied in the field of electronic ceramic materials for sensors and their preparation, can solve the problems of unsuitable high temperature environment, poor piezoelectric performance, low Curie temperature, etc., achieve excellent piezoelectric performance, improve temperature characteristics, Density-enhancing effect

Active Publication Date: 2022-02-15
新化柏盛陶瓷科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, perovskite structure piezoelectric ceramic materials and bismuth layer structure piezoelectric ceramic materials represented by PZT base are widely used. The piezoelectric coefficient d of PZT base piezoelectric ceramic materials is 33 large, but the Curie temperature T c Low, not suitable for high temperature environments, the Curie temperature T of bismuth layered piezoelectric ceramic materials c higher, but the piezoelectric coefficient d 33 Low, poor piezoelectric performance, develop a high Curie temperature T c , electronic ceramic materials with excellent piezoelectric properties have become the focus of current research

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic ceramic material for sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An electronic ceramic material for a sensor, the general chemical formula is as follows:

[0029] BiIn 0.5 Yb 0.5 o 3 -Pb 0.95 Ba 0.05 (Sn 0.33 Nb 0.67 ) 0.05 (Zn 0.33 Nb 0.67 ) 0.05 Ti 0.9 o 3 -0.2%MnO 2 -0.5%CeO 2

[0030] The preparation method of above-mentioned electronic ceramic material is as follows:

[0031] The raw materials were weighed in proportion, and the SnO 2 and Nb of the first copy 2 o 5 After ball milling, pre-sinter at 850°C for 2 hours to obtain the first calcined body, ZnO and the second part of Nb 2 o 5 After ball milling, calcinate at 850°C for 2 hours to obtain the second calcined body, the first calcined body, the second calcined body, Pb 3 o 4 、TiO 2 、BaCO 3 After ball milling, calcinate at 850°C for 2h to obtain the third calcined body, Bi 2 o 3 、In 2 o 3 , Yb 2 o 3 After ball milling, calcinate at 850°C for 2 hours to obtain the fourth calcined body, the third calcined body, the fourth calcined body, MnO 2 , Ce...

Embodiment 2

[0033] An electronic ceramic material for a sensor, the general chemical formula is as follows:

[0034] BiO 3 -Pb 0.95 Ba 0.05 (Sn 0.33 Nb 0.67 ) 0.05 (Zn 0.33 Nb 0.67 ) 0.05 Ti 0.9 o 3 -0.2%MnO 2 -0.5%CeO 2

[0035] The preparation method of above-mentioned electronic ceramic material is as follows:

[0036] The raw materials were weighed in proportion, and the SnO 2 and Nb of the first copy 2o 5 After ball milling, pre-sinter at 850°C for 2 hours to obtain the first calcined body, ZnO and the second part of Nb 2 o 5 After ball milling, calcinate at 850°C for 2 hours to obtain the second calcined body, the first calcined body, the second calcined body, Pb 3 o 4 、TiO 2 、BaCO 3 After ball milling, calcinate at 850°C for 2h to obtain the third calcined body, Bi 2 o 3 、In 2 o 3 After ball milling, calcinate at 850°C for 2 hours to obtain the fourth calcined body, the third calcined body, the fourth calcined body, MnO 2 , CeO 2 After ball milling, pre-f...

Embodiment 3

[0039] An electronic ceramic material for a sensor, the general chemical formula is as follows:

[0040] BYZGR 3 -Pb 0.95 Ba 0.05 (Sn 0.33 Nb 0.67 ) 0.05 (Zn 0.33 Nb 0.67 ) 0.05 Ti 0.9 o 3 -0.2%MnO 2 -0.5%CeO 2

[0041] The preparation method of above-mentioned electronic ceramic material is as follows:

[0042] The raw materials were weighed in proportion, and the SnO 2 and Nb of the first copy 2 o 5 After ball milling, pre-sinter at 850°C for 2 hours to obtain the first calcined body, ZnO and the second part of Nb 2 o 5 After ball milling, calcinate at 850°C for 2 hours to obtain the second calcined body, the first calcined body, the second calcined body, Pb 3 o 4 、TiO 2 、BaCO 3 After ball milling, calcinate at 850°C for 2h to obtain the third calcined body, Bi 2 o 3 , Yb 2 o 3 After ball milling, calcinate at 850°C for 2 hours to obtain the fourth calcined body, the third calcined body, the fourth calcined body, MnO 2 , CeO 2 After ball milling, p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Curie temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of electronic ceramic materials, in particular to an electronic ceramic material for a sensor and a preparation method thereof; the chemical general formula is BiMeO3-PbaBa1-a(SnbNb1-b)x(ZncNb1-c)yTi1-x-yO3-alphaMnO2-betaCeO2; herein, the Me is one or more of Sc, In, Fe, Ga and Yb, a ranges from 0.85 to 0.99, b ranges from 0.2 to 0.4, c ranges from 0.2 to 0.4, x ranges from 0.01 to 0.1, y ranges from 0.01 to 0.1, alpha ranges from 0.1 to 0.5%, and beta ranges from 0.1 to 0.5%. The prepared electronic ceramic material is excellent in piezoelectric property, and the Curie temperature Tc of the electronic ceramic material is larger than or equal to 684 DEG C and is similar to the Curie temperature of a bismuth layered structure piezoelectric ceramic material; therefore, the material can be used as a sensor element working in a high-temperature environment, the high-temperature stability of a sensor can be improved, and the service life of the sensor is prolonged.

Description

technical field [0001] The invention relates to the field of electronic ceramic materials, in particular to an electronic ceramic material for sensors and a preparation method thereof. Background technique [0002] Piezoelectric sensor is a sensor based on the piezoelectric effect. Its main components are made of piezoelectric ceramic materials. After the piezoelectric ceramic material is stressed, charges are generated on the surface. The charges are amplified by the charge amplifier and the measurement circuit and transformed into impedance It becomes the electrical output proportional to the external force. Piezoelectric sensors are used to measure force and non-electrical physical quantities that can be converted into electricity, such as acceleration, pressure and vibration. Its advantages are wide frequency band, high sensitivity, and high signal-to-noise ratio. , simple structure, reliable operation and light weight. [0003] At present, perovskite structure piezoele...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/453C04B35/622G01H11/08G01L1/16G01P15/09
CPCC04B35/453C04B35/622G01L1/16G01P15/09G01H11/08C04B2235/3293C04B2235/3251C04B2235/3296C04B2235/3284C04B2235/3232C04B2235/442C04B2235/3298C04B2235/3286C04B2235/3224C04B2235/3229C04B2235/3267C04B2235/96C04B2235/77
Inventor 周柏如阳洪生
Owner 新化柏盛陶瓷科技有限公司