Laser pyrolysis composite additive manufacturing integrated precursor ceramic film sensor and preparation method thereof

A technology of precursor ceramics and thin-film sensors, which is applied in the field of sensors to achieve the effects of reducing influence, increasing electrical conductivity, and good cladding and infiltration

Pending Publication Date: 2022-04-12
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few related literatures on the fabrication of precursor ceramic thin film sensors

Method used

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  • Laser pyrolysis composite additive manufacturing integrated precursor ceramic film sensor and preparation method thereof
  • Laser pyrolysis composite additive manufacturing integrated precursor ceramic film sensor and preparation method thereof
  • Laser pyrolysis composite additive manufacturing integrated precursor ceramic film sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this example, a precursor ceramic insulating group manufacturing precursor ceramic insulating base strain sensor is provided in a laser-purified composite adapter, which is sequentially insulating substrate, and the sensitive gate thickness is between 10 to 20 μm.

[0036] The specific preparation process of the above laser induced composite curved precursor ceramic insulating group strain sensor is like figure 1 As shown, the specifically includes the steps of:

[0037] 1) Preprocessing: First, the alumina base is easily washed 20 to 60 min, and after drying in the drying tank, take it out.

[0038] 2) Preparation of the sensitive grid: Configure the mixed solution of the conductive powder and the PDC, and use the Visen Burgon direct writing process, it is directly written to the insulating substrate of step 1), after curing for 20 minutes, laser treatment, by laser heat Solution enhancement realizes the transformation of organic material material graphitization, from A...

Embodiment 2

[0041]In this example, a laser-hydrolysis composite admixture manufacturing integrated precursor ceramic strain film sensor is provided, and is sequentially subjected to a nickel-based alloy substrate, a composite insulating layer, a strain-sensitive gate, wherein the composite insulating layer has a thickness of 50 to 200 μm. The sensitive gate thickness is between 10 and 20 μm.

[0042] The specific preparation process of the above precursor ceramic integrated strain sensor is like figure 2 As shown, specifically as follows:

[0043] 1) Pretreatment: The nickel-based alloy sheet is passed through an ultrasound 20 to 60 min, and after drying in the drying tank, a transition layer of 3 to 10 μm is sputtered on a nickel-based alloy sheet by a magnetron sputter.

[0044] 2) Preparation of the insulating layer: Configure the PDC solution, the insulating powder and the infiltration of the insulating powder mixed solution, and the mixture is taken out after stirring in the magnetic sti...

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Abstract

The invention discloses a laser pyrolysis composite additive manufacturing integrated precursor ceramic film sensor and a preparation method thereof, a metal component or an insulating material is used as a substrate, and a PDC doped composite insulating film layer with high compactness, high insulativity and high temperature resistance is formed on the surface of the metal component through a layer-by-layer laser pyrolysis additive technology; a sensitive grid of PDC doped filler is directly written on the composite insulating film layer through Vensengburg, and a strain sensitive layer with excellent conductivity is obtained through a method for enhancing PDC graphitization through laser pyrolysis, so that laser in-situ additive integrated manufacturing of the high insulating film layer based on the PDC material, the sensitive grid with excellent conductivity and the metal substrate is created; the laser technological process of liquid-solid-function conversion of the PDC composite material is achieved, and the PDC composite material is successfully applied to metal material strain sensing.

Description

Technical field [0001] The present invention belongs to the sensor technology, and in particular, the present invention relates to a laser pyrolysis composite add material to produce an integrated precursor ceramic (PDC) film sensor and the preparation method thereof. Background technique [0002] With the development of aviation and aerospace technology, the intelligent monitoring of high-temperature service environments has put forward increasingly high requirements. The precursor ceramics (PDC) materials are a new type of high temperature ceramics, due to excellent high temperature thermal stability, Antioxidant and creep resistance, and maintains an amorphous form below 1700 ° C, and has semiconductor characteristics, it is considered to be a good high temperature sensing material. Many researchers use their physical quantities such as temperature, strain, and heat flow in high temperature sectors. [0003] Compared to traditional sensors, the thin film sensor has a small siz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16B33Y10/00B33Y40/10B33Y80/00
CPCC04B2235/6026G01L1/2293B33Y10/00C04B35/626C04B35/524C04B35/6267C04B41/0036C04B41/0072C04B41/4535B33Y80/00C04B41/4572G01L1/005C04B2235/665B33Y70/00C04B41/4554
Inventor 孙道恒海振银徐礼达李兰兰崔在甫武超陈国淳李鑫陈沁楠何功汉
Owner XIAMEN UNIV
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