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Platinum-tantalum laminated composite material and preparation method thereof

A layered composite material and plate technology, applied in the field of composite materials, can solve problems such as poor high-temperature mechanical properties, limited application, and inability to use high-temperature structural materials, and achieve high-temperature strength, high-temperature creep resistance, and good high-temperature mechanical properties. Effect

Active Publication Date: 2015-04-29
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The platinum-tantalum layered materials involved in the above-mentioned patents are mainly used as anode materials, but their high-temperature mechanical properties are poor, which limits their application in the field of fiber forming
The above-mentioned platinum-tantalum composite materials cannot work normally under the corrosive medium conditions of high-temperature molten liquid at 1100~1500°C, and cannot be used as high-temperature structural materials for glass fiber and basalt fiber molding, etc.

Method used

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  • Platinum-tantalum laminated composite material and preparation method thereof
  • Platinum-tantalum laminated composite material and preparation method thereof
  • Platinum-tantalum laminated composite material and preparation method thereof

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preparation example Construction

[0041] The invention discloses a method for preparing a platinum-tantalum layered composite material, such as figure 1 As shown, the process flow chart of the platinum-tantalum layered composite material includes the following steps: step a) explosively compounding the reinforced tantalum plate and the first reinforced platinum plate to obtain an intermediate plate, and the reinforced tantalum plate is solid A solution strengthened tantalum plate and / or a dispersion strengthened tantalum plate, the first strengthened platinum plate is a first solid solution strengthened platinum plate and / or a first dispersion strengthened platinum plate, the first strengthened platinum plate The thickness ratio to the reinforced tantalum plate is 1 to 5: 5 to 9; step b) rolling the intermediate plate and annealing treatment to obtain a platinum-tantalum layered composite material.

[0042] As a preferred solution, it also includes a pretreatment step of the reinforced tantalum plate, specifically...

Embodiment 1

[0066] Take the reinforced platinum / reinforced tantalum double-layer metal composite plate as an example for illustration. The base layer is a Ta-W reinforced plate and the clad layer is a Pt-Rh alloy plate.

[0067] (1) Preparation of raw materials Take a reinforced Ta-10W sheet with a thickness of 9mm prepared by vacuum melting, cut into a 9×70×150mm sheet as a substrate, and then take a sheet with a thickness of 1mm prepared by the intermediate frequency vacuum induction melting method Reinforced Pt-10Rh alloy sheet, cut into 1×70×150mm sheet as a composite sheet.

[0068] (2) Annealing treatment of the sheet A vacuum heat treatment furnace is used to anneal the tantalum sheet and the platinum sheet of step (1). Tantalum plate annealing process: first control the vacuum degree of the heating chamber to 2.6×10 -3 Pa below, then start to heat up, the holding temperature is 1200℃, the holding time is 50min, and it is cooled with the furnace; the platinum plate annealing process: th...

Embodiment 2

[0076] Take the dispersion-strengthened platinum alloy / strengthened tantalum / dispersion-strengthened platinum alloy three-layer metal composite plate as an example for illustration. The base layer is a Ta-Nb strengthened plate and the clad layer is a dispersion strengthened Pt-Rh alloy plate.

[0077] (1) Preparation of raw materials Take a reinforced Ta-Nb sheet with a thickness of 8mm prepared by vacuum melting, cut into a 8×100×150mm sheet as a substrate, and then take two sheets prepared by an intermediate frequency vacuum induction melting method with a thickness of 2mm The dispersion strengthened Pt-5wt%Rh alloy sheet is cut into 1×100×150mm sheet as a composite sheet.

[0078] (2) Annealing treatment of the sheet A vacuum heat treatment furnace is used to anneal the tantalum sheet and the platinum sheet of step (1). Tantalum plate annealing process: first control the vacuum degree of the heating chamber to 2.0×10 -3 Pa, the heating temperature can be started, the holding tem...

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Abstract

The invention discloses a platinum-tantalum laminated composite material and a preparation method thereof. The platinum-tantalum laminated composite material comprises a strengthened tantalum plate and a first strengthened platinum plate combined with one side of the strengthened tantalum plate, wherein the thickness ratio of the first strengthened platinum plate to the strengthened tantalum plate is 1-5:1-9. Compared with the prior art, the platinum-tantalum laminated composite material utilizes the strengthened tantalum plate and the strengthened platinum plate and fully utilizes a solution strengthening way and / or a dispersion strengthening way, so that the material has high high-temperature strength and high-temperature creep resistance. In addition, low-temperature plasticity and weldability are not affected obviously, and follow-up cold rolling deformation processing of the composite material is not affected. Besides, by adjusting the thickness ratio of the first strengthened platinum plate to the strengthened tantalum plate, platinum diffuses to the surface of the tantalum plate to enable the platinum-tantalum laminated composite material to be invalid when the platinum-tantalum laminated composite material is used under the condition of high-temperature oxidizing atmosphere while ensuring that the platinum-tantalum laminated composite material has good high-temperature mechanical property.

Description

Technical field [0001] The invention relates to the technical field of composite materials, and more specifically, to a platinum-tantalum layered composite material and a preparation method thereof. Background technique [0002] Among platinum group metals and their alloys, platinum is widely used in glass fiber and basalt fiber forming devices due to its high melting point, good corrosion resistance and oxidation resistance, good formability and weldability. So far, all the materials of the slat plate required for fiber forming are platinum and its alloy materials. However, platinum is expensive, and it has low strength when used for a long time at high temperatures, and is prone to creep deformation and failure. Therefore, it is of very important practical significance to study the replacement or partial replacement of platinum for drawing slip plates. For metallic tantalum, it has the properties of high melting point and rich ductility, can be drawn into filaments or made in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B37/10
Inventor 杨宗伦尹伟
Owner CHONGQING POLYCOMP INT
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