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Controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al

A -cu2v2o7--al, composite conductive technology, applied in the field of inorganic composite materials, can solve the problems of damaged instruments, decreased instrument performance, shortened lifespan, etc., and achieves the effects of simple preparation process, good high-temperature conductivity, and adjustable expansion coefficient

Inactive Publication Date: 2016-06-08
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most materials in nature have the property of thermal expansion and contraction. Thermal expansion and contraction will generate thermal stress between instrument components, which will lead to problems such as performance degradation and shortened life of the instrument, and even damage the instrument in severe cases.

Method used

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  • Controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al
  • Controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al
  • Controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The novel composite conductive ceramic material α-Cu prepared in this embodiment 2 V 2 o 7 --The mass fraction of Al in Al is 0.05 (that is, Al accounts for 5% of the total mass in the composite material), and its preparation method is as follows:

[0023] (1) Al powder and α-Cu 2 V 2 o 7 Add an appropriate amount of absolute ethanol to the agate mortar, grind for 1 hour, ensure that the mixture is uniform, and then dry it in a 60°C oven for 30 minutes, and set aside;

[0024] (2) Press the uniformly mixed material obtained in step (1) into a cylindrical blank body with a diameter of 10 mm and a height of 5 mm using a 769YP-15A powder uniaxial tablet press under a pressure of 200 MPa;

[0025] (3) Place the plain body obtained in step (2) in a tube furnace, sinter at 650°C for 10 hours, and then cool down naturally.

Embodiment 2

[0027] The novel composite conductive ceramic material α-Cu prepared in this embodiment 2 V 2 o 7 --The mass fraction of Al in Al is 0.10 (that is, Al accounts for 10% of the total mass in the composite material).

[0028] The preparation method is the same as in Example 1.

Embodiment 3

[0030] The novel composite conductive ceramic material α-Cu prepared in this embodiment 2 V 2 o 7 --The mass fraction of Al in Al is 0.20 (that is, Al accounts for 20% of the total mass in the composite material).

[0031] The preparation method is the same as in Example 1.

[0032] For the prepared new composite conductive ceramic material α-Cu 2 V 2 o 7 --Al conducts X-ray diffraction (XRD) spectrum phase analysis, and the results are as follows figure 1 As shown, the analysis shows that its main component is α-Cu 2 V 2 o 7 - and Al.

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Abstract

The invention belongs to the technical field of inorganic composite materials, and particularly relates to a novel controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al and a preparing method thereof. The material is prepared through solid-phase sintering of alpha-Cu2V2O7 and Al powder, wherein the mass percent of the Al powder ranges from 5% to 80%. The preparing method comprises the steps such as material mixing, preforming blank forming and sintering. The provided controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al is simple in preparing technology, low in cost, environment-friendly, free of pollution and suitable for industrial production. Meanwhile, the material has the beneficial effects that the expansion coefficient can be adjusted, and the high-temperature conductive performance is good; and the controllable thermal expansion composite conductive ceramic material alpha-Cu2V2O7-Al has wide application prospects in integrated circuits, photoelectron instruments and meters and other technical fields with the high requirements for base material heat matching and high-temperature electric conduction and related products of the technical fields.

Description

technical field [0001] The invention belongs to the technical field of inorganic composite materials, and in particular relates to a novel controllable thermal expansion composite conductive ceramic material α-Cu 2 V 2 o 7 --Al and its preparation method. Background technique [0002] In recent years, with the advancement of technology and the needs of production, in the field of precision measurement and optoelectronic instrumentation manufacturing, the requirements for thermal stability of components are getting higher and higher. However, most materials in nature have the property of thermal expansion and contraction. Thermal expansion and contraction will generate thermal stress between instrument components, resulting in degradation of instrument performance, shortened life span, and even damage to the instrument. [0003] The emergence and development of negative thermal expansion materials provide an opportunity to solve the thermal expansion matching between mater...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C29/12C22C21/00C22C32/00
CPCB22F2998/10C22C1/05C22C1/051C22C21/00C22C29/12C22C32/0036B22F1/0003B22F3/02B22F3/10
Inventor 晁明举张牛李玉祥冯东省刘存远杨梦婕孔旭辉张梦迪孔晓帅
Owner ZHENGZHOU UNIV
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