Diamond / metal composite material clamping rod and manufacturing method thereof

A metal composite material and diamond technology, which is applied in the field of vacuum electronics, can solve the problems of easy brittle fracture, difficult manufacturing, and difficult assembly, and achieve the effects of not easy brittle fracture, high bonding strength, and avoiding deformation.

Active Publication Date: 2014-02-19
山西新碳超硬材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to solve the problems that materials such as BeO cannot meet the heat dissipation requirements of traveling wave tubes, while natural and artificial diamond large single crystal materials have high cost and are difficult to manufacture, and CVD self-supporting thick films have high cost, are brittle and difficult to assemble. Provides a diamond / metal composite clamping rod

Method used

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  • Diamond / metal composite material clamping rod and manufacturing method thereof
  • Diamond / metal composite material clamping rod and manufacturing method thereof
  • Diamond / metal composite material clamping rod and manufacturing method thereof

Examples

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Embodiment 1

[0042] Such as figure 1 A diamond / metal composite clamping rod shown includes three layers, the upper and lower layers are a first layer of CVD diamond film 3 and a second layer of CVD diamond film 7, the middle is a metal layer 6, and the metal layer 6 It is a metal layer coated with artificial diamond particles of similar particle size and consistent crystal orientation, wherein the diamond particles of the metal layer are connected to the upper and lower layers of CVD diamond films.

[0043] The shape of the clamping rod is a long rod with a rectangular cross-section, 52mm long, 0.7mm high, and 0.2mm wide; the artificial diamond particles are mainly diamond particles produced by high temperature and high pressure method, and the crystal orientation is preferably (100). The thickness is 0.4-0.5mm; the metal layer element is a strong carbide metal element that can form a good bonding strength with diamond, which can be Ti, W, Mo, Cr, Nb, Zr, Ta, Hf, etc.; The thickness of th...

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Abstract

The invention discloses a diamond / metal composite material clamping rod and a manufacturing method of the diamond / metal composite material clamping rod, belongs to the technical field of vacuum electronics, and relates to clamping rods for traveling-wave tubes. The diamond / metal composite material clamping rod solves the problems that BeO and other materials can not meet heat dissipation requirements of the traveling-wave tubes, natural and artificial diamond large monocrystal materials are high in cost and difficult to manufacture, and CVD self-supporting thick films are high in cost, prone to brittle failures, and difficult to assemble. The diamond / metal composite material clamping rod comprises three layers, wherein the top layer and the bottom layer are made of CVD diamond films, the middle layer is a metal layer, the metal layer is wrapped by artificial diamond particles which are approximate in particle size and the same in crystal orientation, and the diamond particles are connected with the CVD diamond film on the top layer and the CVD diamond film on the bottom layer. The diamond / metal composite material clamping rod is short in manufacturing period, low in cost, high in toughness, and not prone to brittle failures.

Description

technical field [0001] The invention belongs to the technical field of vacuum electronics and relates to a clamping rod for a traveling wave tube, in particular to a diamond / metal composite clamping rod for a traveling wave tube and a manufacturing method. Background technique [0002] Traveling wave tube is a power amplifier device that converts the kinetic energy of electron beam into microwave energy by using the interaction between high-speed electron beam and microwave signal. It is widely used in communication, navigation and positioning, radar detection and other fields. When the traveling wave tube is working, the helix generates heat due to high-frequency loss and bombardment by the defocused electron beam. This heat needs to be dissipated in time, otherwise the average output power of the traveling wave tube will be attenuated due to excessive temperature, resulting in slow Significant increase in wave loss. In the traveling wave tube, the clamping rod not only pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/26H01J23/27H01J9/24
Inventor 于盛旺申艳艳高洁宁来元贺志勇黑鸿君
Owner 山西新碳超硬材料科技有限公司
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