Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Novel NTC Thermistor Material Based on Copper Oxide

A thermistor and raw material technology, applied in the direction of resistors with negative temperature coefficients, etc., can solve problems affecting material performance and service life, unstable electrical performance, material aging, etc., to achieve high performance stability, high reliability, The effect of low sintering temperature

Inactive Publication Date: 2019-10-18
CENT SOUTH UNIV
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This relaxation phenomenon causes the instability of the electrical properties of the NTC ceramic material, which easily leads to the aging of the material and affects the performance and service life of the material.

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
  • A Novel NTC Thermistor Material Based on Copper Oxide
  • A Novel NTC Thermistor Material Based on Copper Oxide
  • A Novel NTC Thermistor Material Based on Copper Oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment according to the molecular formula Cu 1-x-y Y x B y O for batching, where x =0.008, y =0. The initial raw material is selected from copper hydroxide Cu(OH) 2 , Diyttrium trioxide Y 2 o 3 . Materials were prepared according to the following experimental process steps:

[0020] (1) Press the initial raw material into Cu 0.992 Y 0.008 O formula ingredients, weigh Cu(OH) 2 28.9265 g, Y 2 o 3 0.4516g;

[0021] (2) The raw materials taken in the previous step are dissolved in dilute nitric acid respectively;

[0022] (3) Mix the two solutions prepared in the previous step together, and use a magnetic stirring heater to stir and mix evenly, heat and dry;

[0023] (4) Calcining the powder obtained in the previous step at a temperature of 830° C. and keeping it warm for 3 hours;

[0024] (5) The powder synthesized in the previous step is granulated and pressed into a green body; the green body is a disc shape, the diameter of the disc is 15 mm, ...

Embodiment 2

[0030] This embodiment according to the molecular formula Cu 1-x-y Y x B y O for batching, where x =0.008, y =0.002. The initial raw material is selected from copper hydroxide Cu(OH) 2 , Diyttrium trioxide Y 2 o 3 , boric acid H 3 BO 3 . Materials were prepared according to the following experimental process steps:

[0031] (1) Press the initial raw material into Cu 0.99 Y 0.008 B 0.002 O formula ingredients, weigh Cu(OH) 2 28.8682 g, Y 2 o 3 0.4516 g, H 3 BO 3 0.0618 g;

[0032] (2) The preparation process is the same as steps (2)-(8) in Example 1.

[0033] The properties of the prepared materials are shown in Table 1. figure 1 with figure 2 shown.

Embodiment 3

[0035] In this example, according to the molecular formula Cu 1-x-y Y x B y O for batching, where x =0.008, y =0.005. The initial raw material is selected from copper hydroxide Cu(OH) 2 , Diyttrium trioxide Y 2 o 3 , boric acid H 3 BO 3 . Materials were prepared according to the following experimental process steps:

[0036] (1) Press the initial raw material into Cu 0.987 Y 0.008 B 0.005 O formula ingredients, weigh Cu(OH) 2 28.7807 g, Y 2 o 3 0.4516 g, H 3 BO 3 0.1546g;

[0037] (2) The preparation process is the same as steps (2)-(8) in Example 1.

[0038] The properties of the prepared materials are shown in Table 1. figure 1 with figure 2 shown.

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
electrical resistivityaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a semiconductor ceramic material, in particular to a NTC thermal resistance material meeting the preparation of a thermal resistance element with a resistance negative temperature coefficient (NTC) effect. According to the novel NTC thermal resistance material, the indoor temperature resistance value and the material constant value of the thermal resistance element can be adjusted through the change of the content of micro-scale doped elements. The NTC thermal resistance material is mainly composed of the component of simple oxide, the NTC thermal resistance material can be sintered into a ceramic body at the temperature about 1000 DEG C, and the NTC thermal resistance material can be adaptable to the sintering forming of thermal-sensitive ceramic elements, thin film thermal-sensitive elements and low-temperature cofiring lamination thermal-sensitive components. The novel NTC thermal resistance material has the advantages that the stability is good, the consistency is good, the repeatability is good, and the electrical characteristics including the resistance value, the material constant and the resistance temperature coefficient are controllable. The novel NTC thermal resistance material is suitable for temperature measuring, temperature control and circuit compensation, protection of circuit and electronic components, and the instruments and application fields of flow velocity, flow and ray measuring.

Description

technical field [0001] The invention relates to an NTC thermistor material for preparing a thermistor element with a negative temperature coefficient (NTC) effect of resistance. Applicable to temperature measurement, temperature control and line compensation, as well as protection of circuits and electronic components, as well as instruments and applications for flow velocity, flow, and ray measurement. Background technique [0002] Thermal sensors are devices made using the properties of materials whose resistivity changes with temperature, including positive temperature coefficient (PTC) thermistors whose resistivity increases with temperature or those whose resistivity decreases with temperature Negative temperature coefficient (NTC) thermistor element. NTC thermistor components and devices have been widely used in temperature measurement, control, temperature compensation, protection of circuits and electronic components, and related instruments and applications for flo...

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): H01C7/04
Inventor 李志成张鸿杨宝
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com