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Micro-vibration sensitive type high-damping composite and preparation method thereof

A composite material and high damping technology, which is applied in the field of high damping composite materials, can solve the problems of poor damping performance and uneven distribution of ceramic phases, and achieve good thermal stability and wide service temperature

Active Publication Date: 2016-02-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing high damping material has poor damping performance in a micro-vibration environment, and the ceramic phase distribution in the composite material is uneven

Method used

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  • Micro-vibration sensitive type high-damping composite and preparation method thereof
  • Micro-vibration sensitive type high-damping composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 10 grams of lithium-lanthanum-zirconium-oxygen powder doped with aluminum in the lithium position and niobium in the zirconium position and 90 g of brass powder with a particle size of 500 μm and put it into a ball mill Dry milling in the tank to make it fully mixed, the speed of the ball milling tank is 200rpm, the ball milling time is 4h, the ball-to-material ratio is 4:1; the fully mixed mixture is passed through hot pressing at a sintering temperature of 750°C and a pressing pressure of 100MPa. Vacuum sintering to prepare high damping composite materials.

Embodiment 2

[0035] Same as Example 1, the difference is that the lithium lanthanum zirconium oxide powder is partially doped with aluminum in the lithium site, strontium in the lanthanum site, and silicon in the same position in the lithium lanthanum zirconium oxide powder. Damping compound.

Embodiment 3

[0037] Same as Example 1, the difference is that the brass powder is copper-aluminum alloy, and a high-damping composite material is prepared.

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Abstract

The invention discloses a micro-vibration sensitive type high-damping composite and a preparation method thereof. The high-damping composite is formed by compounding a lithium lanthanum zirconium alkoxy ceramic material of a garnet-like structure and pure copper or copper alloy. By means of the high-damping composite adopting a powder metallurgic method or liquid melting method, the mechanical property of a ceramic base can be greatly improved through the beneficial effect that the high-damping composite has high damping performance under excellent room temperature micro-vibration environment and does not depend on strain amplitude and the beneficial effect that the good mechanical property is achieved after the high-damping composite is compounded with copper or copper alloy, and therefore the requirement of high-damping materials is met well.

Description

technical field [0001] The invention belongs to the technical field of high-damping composite materials, and in particular relates to a micro-vibration-sensitive high-damping composite material and a manufacturing method thereof. Background technique [0002] In modern industrial production, high-precision measurement and ultra-fine processing are more and more widely used, and the requirements for micro-vibration are also getting higher and higher. For example, dynamic random access memory (DRAM) in integrated circuits requires a very quiet and stable production environment, and its vibration value must be controlled within 4.5 μm. Excessive vibration will lead to a sharp drop in the product qualification rate, and its parameters cannot be accurately measured. In fact, not only in electronic systems, but also in advanced equipment such as instruments and meters, navigation equipment, etc., there is a similar widespread and urgent need to reduce micro-vibration. Therefore,...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C1/02C22C29/12C22C9/00
CPCC22C1/02C22C1/05C22C9/00C22C29/12
Inventor 马亮王先平鲁卉高云霞蒋卫斌刘旺方前锋
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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