Gradient isomeric titanium-tantalum layered composite material and preparation method and application thereof

A layered composite material, titanium and tantalum technology, applied in the field of biomedical materials, can solve the problems of high manufacturing cost, incompatibility of high strength and high fracture toughness, complex manufacturing process, etc., to achieve reduced elastic modulus, good mechanical properties, good toughness

Active Publication Date: 2021-07-30
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the modulus of elasticity of titanium-tantalum alloy is much higher than that of bone tissue, high strength and high fracture toughness are not compatible, the manufacturing process is complicated and the manufacturing cost is high, and a gradient heterogeneous titanium-tantalum layered composite is provided. Materials, Preparation Methods and Applications

Method used

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  • Gradient isomeric titanium-tantalum layered composite material and preparation method and application thereof
  • Gradient isomeric titanium-tantalum layered composite material and preparation method and application thereof
  • Gradient isomeric titanium-tantalum layered composite material and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The titanium layer and the tantalum layer prepared by a gradient heterogeneous titanium / tantalum layered composite material described in this example are all made of rolled state metal sheets; figure 1 The graphics shown are superimposed; the 13th layer of 0.1mm titanium is the symmetrical layer, and the thickness and structure design of other layers are symmetrical about the 13th layer of 0.1mm titanium, and the 13th layer of 0.1mm titanium is stacked 0.1mm from the inside to the outside. Titanium / 0.03mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.05mm tantalum / 0.1mm tantalum / 0.03mm tantalum / 0.1mm tantalum / 0.05mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.1mm tantalum.

[0048] In this embodiment, the preparation method of the gradient heterogeneous titanium-tantalum layered composite material with different thickness of tantalum layer is as follows:

[0049] Step 1: Surface Preparation

[0050]Manually cut 0.1mm thick titanium foil, 0.1mm tantalum foil, 0.0...

Embodiment 2

[0067] The titanium layer and the tantalum layer prepared by a gradient heterogeneous titanium / tantalum layered composite material described in this example are all made of rolled state metal sheets; figure 1 The graphics shown are superimposed; the 13th layer of 0.1mm titanium is the symmetrical layer, and the thickness and structure design of other layers are symmetrical about the 13th layer of 0.1mm titanium, and the 13th layer of 0.1mm titanium is stacked 0.1mm from the inside to the outside. Titanium / 0.03mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.05mm tantalum / 0.1mm tantalum / 0.03mm tantalum / 0.1mm tantalum / 0.05mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.1mm tantalum.

[0068] In this embodiment, the preparation method of the gradient heterogeneous titanium-tantalum layered composite material with different thickness of tantalum layer is as follows:

[0069] Step 1: Surface Preparation

[0070] Manually cut 0.1mm thick titanium foil, 0.1mm tantalum foil, 0....

Embodiment 3

[0087]In this embodiment, the titanium layer and the tantalum layer prepared by a gradient heterogeneous titanium / tantalum layered composite material are both made of rolled metal sheets; sequentially stacked according to the graphics shown in claim 1; The 0.1mm titanium layer is a symmetrical layer, and the thickness and structural design of other layers are symmetrical about the 13th layer of 0.1mm titanium, and 0.1mm titanium / 0.03mm tantalum / 0.1mm titanium / 0.1 mm tantalum / 0.1mm titanium / 0.05mm tantalum / 0.1mm tantalum / 0.03mm tantalum / 0.1mm tantalum / 0.05mm tantalum / 0.1mm tantalum / 0.1mm tantalum / 0.1mm tantalum.

[0088] The preparation method of a gradient heterogeneous titanium / tantalum layered composite material in this embodiment is as follows:

[0089] Step 1: Surface Preparation

[0090] Manually cut 0.1mm thick titanium foil, 0.1mm tantalum foil, 0.05mm tantalum foil, and 0.03mm tantalum foil into Φ30mm discs, then polish the oxide attached to the lower surface with SiC...

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Abstract

The invention relates to the technical field of biomedical materials, in particular to a gradient isomerous titanium-tantalum layered composite material and a preparation method and application thereof. According to the titanium-tantalum layered composite material, by changing the thickness ratio of a titanium layer to a tantalum layer, component gradient distribution in the layered composite material is achieved, the tissue and performance of the layered composite material can be regulated, and a multi-layer layered structure with different structures is formed in the composite material, so that the strength and the toughness of the material are improved, and the elastic modulus is reduced. The specific method comprises the steps that: titanium foils and tantalum foils with different thicknesses are selected, titanium layers and tantalum layers are alternately stacked, the titanium foils and the tantalum foils with different thicknesses are connected through a diffusion connection method, the gradient isomeric titanium/tantalum layered composite material is prepared, the comprehensive mechanical property of the titanium-tantalum alloy is effectively improved, and meanwhile, the ductility can reach 28%. The preparation method can be used for regulating and controlling the structure and performance of the layered composite material, and has guidance meaning for improving and regulating and controlling the performance of the titanium-tantalum alloy used in the biomedical field.

Description

technical field [0001] The invention relates to the technical field of biomedical materials, in particular to a gradient heterogeneous titanium-tantalum layered composite material, a preparation method and an application thereof. Background technique [0002] In recent years, researchers have found that the density of β-type titanium alloy is close to that of human hard tissue, and its biocompatibility, corrosion resistance and fatigue resistance are better than stainless steel and cobalt alloy, and it is the best metal medical material. Therefore, it is very important to develop β-type titanium alloys with high strength, high toughness, high corrosion resistance, high wear resistance and suitable elastic modulus. Titanium will undergo allotropic transformation above 882°C, from α-Ti to β-Ti, and tantalum, as a β-stable element, can be infinitely solid-solved into β-type titanium alloys, which is beneficial to reduce the elasticity of β-type titanium alloys Modulus and incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B33/00B32B38/16B32B38/18B32B38/00B32B37/06
CPCB32B15/01B32B33/00B32B38/162B32B38/1816B32B38/0008B32B37/06B32B2307/558B32B2250/40Y02P10/25
Inventor 王珊侯旭升吴玉程陈畅刘蕊
Owner HEFEI UNIV OF TECH
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