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

Application of a Ceramic with Excellent Temperature Sensitivity in Resonator Temperature Sensor

A technology of temperature sensor and sensitive characteristics, which is applied in the field of ceramic materials to achieve the effect of low production cost and simple method

Active Publication Date: 2022-05-20
HANGZHOU DIANZI UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the need for performance improvement in existing resonator temperature sensors, the present invention provides a microwave dielectric ceramic with excellent temperature sensitivity and a preparation method thereof

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
  • Application of a Ceramic with Excellent Temperature Sensitivity in Resonator Temperature Sensor
  • Application of a Ceramic with Excellent Temperature Sensitivity in Resonator Temperature Sensor
  • Application of a Ceramic with Excellent Temperature Sensitivity in Resonator Temperature Sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation method of microwave dielectric ceramics with excellent temperature-sensitive characteristics in this embodiment includes the following steps:

[0041] (1) Ingredients: CaCO 3 (purity 99.99%), Al 2 o 3 (purity 99.99%) according to Ca 3 al 2 o 6 The stoichiometric ratio is 3:1; the specific method is to weigh 22.2256g CaCO 3 , 7.5473g Al 2 o 3 raw material.

[0042] (2) Mixing: Pour the above-mentioned mixture into a ball mill, add ball milling medium and absolute ethanol respectively at a mass ratio of 1:5:3, place in a planetary ball mill, and ball mill for 6 hours at a speed of 180r / min to obtain slurry;

[0043](3) Drying: Pour out the ball-milled slurry, place it in an oven and dry it to constant weight at 70°C to obtain a dry mixture;

[0044] (4) Pre-calcination: Grind the dry mixture obtained in the previous step in a mortar and pass it through a 100-mesh standard sieve. After dispersing the mixture, put it into a high-temperature furnace...

Embodiment 2

[0054] The preparation method of microwave dielectric ceramics with excellent temperature-sensitive characteristics in this embodiment includes the following steps:

[0055] (1) Ingredients: CaCO 3 (purity 99.99%), Al 2 o 3 (purity 99.99%) according to Ca 3 al 2 o 6 The stoichiometric ratio is 3:1; the specific method is to weigh 22.2256g CaCO 3 , 7.5473g Al 2 o 3 raw material.

[0056] (2) Mixing: Pour the above-mentioned mixture into a ball mill, add ball milling medium and absolute ethanol respectively at a mass ratio of 1:5:3, place in a planetary ball mill, and ball mill for 6 hours at a speed of 180r / min to obtain slurry;

[0057] (3) Drying: Pour out the ball-milled slurry, place it in an oven and dry it to constant weight at 70°C to obtain a dry mixture;

[0058] (4) Pre-calcination: Grind the dry mixture obtained in the previous step in a mortar and pass it through a 100-mesh standard sieve. After dispersing the mixture, put it into a high-temperature furnac...

Embodiment 3

[0066] The preparation method of microwave dielectric ceramics with excellent temperature-sensitive characteristics in this embodiment includes the following steps:

[0067] (1) Ingredients: CaCO 3 (purity 99.99%), Al 2 o 3 (purity 99.99%) according to Ca 3 al 2 o 6 The stoichiometric ratio is 3:1; the specific method is to weigh 22.2256g CaCO 3 , 7.5473g Al 2 o 3 raw material.

[0068] (2) Mixing: Pour the above-mentioned mixture into a ball mill, add ball milling medium and absolute ethanol respectively at a mass ratio of 1:5:3, place in a planetary ball mill, and ball mill for 6 hours at a speed of 180r / min to obtain slurry;

[0069] (3) Drying: Pour out the ball-milled slurry, place it in an oven and dry it to constant weight at 70°C to obtain a dry mixture;

[0070] (4) Pre-calcination: Grind the dry mixture obtained in the previous step in a mortar and pass it through a 100-mesh standard sieve. After dispersing the mixture, put it into a high-temperature furnac...

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
quality factoraaaaaaaaaa
diameteraaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a microwave dielectric ceramic with excellent temperature sensitive characteristics and a preparation method thereof, the main raw material of which is CaCO 3 、Al 2 o 3 High-purity powder, the composition of microwave dielectric ceramics is Ca 3 al 2 o 6 , and its specific preparation method mainly includes: batching, primary ball milling, pre-calcination, secondary ball milling, granulation and tabletting, and sintering. The present invention obtains a microwave dielectric ceramic Ca 3 al 2 o 6 , has important application value in the field of temperature monitoring and detection of industrial high-temperature harsh environments such as turbines, steam turbines, furnaces, etc.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a microwave dielectric ceramic with excellent temperature-sensitive characteristics and a preparation method thereof. Background technique [0002] In the field of industrial production, it is often necessary to monitor the operating temperature of high-temperature equipment such as turbines, steam turbines, and furnaces in real time. At present, most of the temperature sensors used commercially are wired sensing devices based on thermocouples and optical fiber sensors. However, the cables and connectors of such wired sensing devices are highly susceptible to failure at high temperatures, making them unsuitable for harsh environmental conditions. Wireless temperature sensors mainly include wireless chip sensors and resonator sensors, because chips are also extremely prone to failure when working at high temperatures. Therefore, resonator temperature sensor...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/44C04B35/622C04B35/634
CPCC04B35/44C04B35/63416C04B35/622C04B2235/3208
Inventor 刘兵吴一黄玉辉宋开新
Owner HANGZHOU DIANZI UNIV