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Method for manufacturing a part or a supported microstructure by laser exposure of a metal oxalate layer

A technology of oxalate and microstructure, which is applied in the field of ceramic or composite parts or manufacturing supporting metal, manufacturing metal, ceramic or composite microstructure, which can solve the problems of discontinuity of parts, insufficient mechanical strength of parts, etc., and the method is simple, The effect of method economy

Inactive Publication Date: 2018-10-23
UNIV PAUL SABATIER TOULOUSE III +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Other difficulties may also be encountered, such as insufficient mechanical strength of the manufactured part and / or the presence of discontinuities in the manufactured part

Method used

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  • Method for manufacturing a part or a supported microstructure by laser exposure of a metal oxalate layer
  • Method for manufacturing a part or a supported microstructure by laser exposure of a metal oxalate layer
  • Method for manufacturing a part or a supported microstructure by laser exposure of a metal oxalate layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0164] Embodiment 1: Fabricate a metal microstructure with a periodic pattern according to the method of the present invention

[0165] According to the procedure described by K. Kiryukhina et al. in Scripta Materialia, 2013, 68, 623-626, corresponding to the formula Ag 2 C 2 o 4 Silver oxalate in the form of a powder of acicular particles, wherein the average length of the acicular particles is about 5 μm, and the average width is 1 μm.

[0166] 1 g of this oxalate was mixed with 4 g of ethylene glycol in an agate mortar. The resulting mixture was then placed in an ultrasonic bath to provide a good dispersion of the particles in ethylene glycol. The viscosity of the mixture was measured to be about 32 cP under the conditions defined in the present invention.

[0167] 3 drops (volume of about 1.5 ml) of the above-obtained suspension were deposited on a glass slide as a substrate, wherein the size of the slide glass was 3 cm×2.5 cm, to produce a smear. The assembly was place...

Embodiment 2

[0172] Embodiment 2: Fabricate a metal microstructure with a periodic pattern according to the method of the present invention

[0173] The microstructure obtained according to Example 1 was heated to a temperature of about 300° C. using a furnace with heating elements at a heating rate of about 150° C. / h. The microstructure was kept at 300°C for 1 hour and then cooled to ambient temperature at a cooling rate of about 150°C / h. This additional step makes possible the sintering of the silver wire as obtained in Example 1. A silver metal grid comprising silver wires with a width of about 10 μm and a thickness of about 5 μm is thus obtained.

[0174] The resulting microstructure remained transparent.

Embodiment 3

[0175] Example 3: Fabrication of metal microstructures with linear patterns according to the method of the present invention

[0176] The microstructure was prepared under the same conditions as those described in Example 1, except that the displacement rate of the sample was 1 mm / s instead of 5 mm / s, and the pattern to be irradiated was a line with a length of 15 mm instead of 200 ×200μm 2 grid.

[0177] Furthermore, ten consecutive passes according to the pattern were performed without step iii) (ie without removing the layer in the unheated area).

[0178] Silver metal lines with a width of about 15 μm and a thickness of about 5 μm were thus obtained.

[0179] The conductivity of the wire was measured by the two-point method using a Keithley brand multimeter, which was about 7.5 x 10 5 S m -1 .

[0180] Therefore, the method of the present invention can impart electrical conductivity to a glass substrate while maintaining its optical transparency.

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Abstract

The invention relates to a method for manufacturing a metallic, ceramic or composite part or a metallic, ceramic or composite supported microstructure by laser exposure from metal oxalates, and to thepart and the microstructure obtained by said method, as well as to the uses thereof.

Description

technical field [0001] The present invention relates to a method for the manufacture of metal, ceramic or composite parts or for the manufacture of supporting metal, ceramic or composite microstructures by laser irradiation starting from metal oxalates, and also to the parts and microstructures obtained by said method, and to the application of the described components and microstructures. Background technique [0002] Transparent conductive metal and / or metal oxide (e.g., ITO (Indium Tin Oxide)) layers have been widely used in liquid crystal screens, flat screen devices, plasma screens, transparent conductive coatings for touch screens, as well as in electronic inks, organic light-emitting diodes , photovoltaic cells, anti-static deposits and EMI shielding related applications. Methods for depositing thin ITO layers on substrates include: cathode sputtering, thermal evaporation, pulsed laser deposition (PLD), chemical vapor deposition, and sol-gel methods. However, since ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/08C23C18/08C23C18/12
CPCC23C24/08C23C18/143C23C18/08C23C18/1208C23C18/1612C23C18/204G03F7/0047
Inventor 瓦莱里耶·巴科菲利浦·塔亚德华·勒特隆伊莎贝尔·帕凯皮埃尔-费朗索瓦·卡尔蒙亨利·卡蒙韦罗妮克·科内代拉
Owner UNIV PAUL SABATIER TOULOUSE III
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