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Multi-layer zirconia solid electrolyte composite chip and preparation method thereof

A technology for stabilizing zirconia and zirconia oxygen ions. It is applied in the direction of material analysis, instruments, and analysis materials through electromagnetic means. It can solve problems such as current leakage and achieve a compact structure.

Inactive Publication Date: 2011-10-26
SHANGHAI YUANDENG ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with the previous tubular and simple chip sensors, there are many problems in the manufacture of multi-layer solid electrolyte composite chip components, namely how to prevent current leakage between layers, how to realize the thermal expansion coefficient and shrinkage rate of each layer material. Matching, how to ensure the mechanical properties of ultra-thin film components and how to effectively burn off organic matter in multi-layer films to obtain high-density electrolytes are all problems to be overcome and solved

Method used

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  • Multi-layer zirconia solid electrolyte composite chip and preparation method thereof
  • Multi-layer zirconia solid electrolyte composite chip and preparation method thereof
  • Multi-layer zirconia solid electrolyte composite chip and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of stabilized zirconia oxygen ion-conducting membrane: by 20g (Y 2 o 3 ) 0.08 (Sc 2 o 3 ) 0.01 (ZrO 2 ) 0.91 Mix with 0.6ml terpineol, 0.6g polyvinyl butyral, 0.8ml diethyl phthalate, 0.5ml polyethylene glycol 400, and 7ml ethanol ball mill to form a slurry and cast it. Thickness 200μm. (2) Preparation of stabilized zirconia bonded separator: 20g (Al 2 o 3 ) 0.03 (ZrO 2 ) 0.97 1. Glass powder mixed with 0.6ml terpineol, 0.8g diethyl phthalate, 0.6ml polyethylene glycol 400, 0.8g acrylamide ethyl acrylate, 7ml ethanol ball milling to form a slurry and then casting; Thickness 40μm. (3) 5 layers of the above-mentioned stabilized zirconia oxide ion-conducting membrane and 7 layers of stabilized zirconia bonded isolation membrane were aged at 50°C for 3 hours; the aged membrane was punched, printed, and dotted according to the size required by the sensor. After through-holes, the two membranes are stacked alternately and at 75°C at 200Kgf / cm 2 ...

Embodiment 2

[0039] (1) Preparation of stabilized zirconia oxygen ion-conducting membrane: by 20g (Y 2 o 3 ) 0.02 (Sc 2 o 3 ) 0.11 (ZrO 2 ) 0.87 Mix with 0.6ml terpineol, 0.5ml polyethylene glycol 400, 0.8ml diethyl phthalate, 0.6g polyvinyl butyral, and 12ml ethanol ball mill to form a slurry and cast it. Thickness 250μm.

[0040] (2) Preparation of stabilized zirconia bonded separator: 18g (Y 2 o 3 ) 0.03 (ZrO 2 ) 0.97 , 2g glass powder and 0.6ml terpineol, 0.5ml polyethylene glycol 400, 0.8g diethyl phthalate, 0.8g acrylamide ethyl acrylate, 10ml ethanol ball mill and mix to form slurry in (1) The prepared stabilized zirconia oxygen ion conducting membrane is printed on it; the thickness is 30 μm.

[0041] (3) The above-mentioned 6 layers of stabilized zirconia oxygen ion-conducting membrane and 8 layers of stabilized zirconia bonded isolation membrane were aged at 60°C for 3 hours; the aged membrane was punched, printed, and dotted according to the size required by the sen...

Embodiment 3

[0043] (1) Preparation of stabilized zirconia oxygen ion-conducting membrane: by 20g (Y 2 o 3 ) 0.08 (ZrO 2 ) 0.92 Mix with 0.6ml terpineol, 0.5ml polyethylene glycol 400, 0.8ml diethyl phthalate, 0.6g polyvinyl butyral, and 11ml ethanol ball mill to form a slurry and cast it. Thickness 150μm.

[0044] (2) Preparation of stabilized zirconia bonded separator: 15g (Y 2 o 3 ) 0.02 (Al 2 o 3 ) 0.01 (ZrO 2 ) 0.97, 5g glass powder and 0.6ml terpineol, 0.5ml polyethylene glycol 400, 0.8g diethyl phthalate, 0.8g acrylamide ethyl acrylate, 10ml ethanol ball milling to form a slurry and then casting into; thickness 50μm.

[0045] (3) The above-mentioned 8 layers of stabilized zirconia oxygen ion-conducting membrane and 10 layers of stabilized zirconia bonded isolation membrane were aged at 50°C for 3 hours; the aged membrane was punched, printed, and dotted according to the size required by the sensor. After the through hole, the two membranes are stacked alternately and th...

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Abstract

The invention belongs to the field of chip preparation, specifically, provides a multi-layer zirconia solid electrolyte composite chip and a preparation method thereof. The multi-layer zirconia solid electrolyte composite chip provided by the invention is formed by alternatively overlying stabilized zirconia oxygen ion conduction membranes (1) and stabilized zirconia cementation isolating membranes (2). The tabilized zirconia oxygen ion conduction membranes use a stabilized zirconia of which a molar ratio is about 8% so as to ensure the conduction of the oxygen ions, and the stabilized zirconia cementation isolating membranes use the stabilized zirconia of which a molar ratio is about 3% so as to improve mechanical performance of the overall composite chip; and the two types of membranes both use the stabilized zirconia so as to implement matching of thermal expansion coefficient and shrinkage factor of the material of each layer. The two types of membranes have different particle sizes and additions to generate different densities, which favors burning off organic matters and organically bonding membranes.

Description

technical field [0001] The invention belongs to the field of chip preparation, and in particular relates to a multilayer zirconia solid electrolyte composite chip of a sensor for exhaust gas detection in a motor vehicle control system and a manufacturing method thereof. Background technique [0002] Motor vehicle exhaust detection sensor is a key component in the engine control system, which plays an important role in improving fuel combustion efficiency, reducing pollution emissions and three-way catalysis. The electrolyte type of the sensor used has gradually developed from the tube type to the chip type. In order to meet the development needs of high precision, wide area, small size, light weight, and high performance of the sensor, the solid electrolyte is gradually developing towards the direction of the multilayer composite chip. [0003] Compared with the previous tubular and simple chip sensors, there are many problems in the manufacture of multilayer solid electroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/403C04B35/48C04B35/622
Inventor 李静涛
Owner SHANGHAI YUANDENG ENVIRONMENTAL PROTECTION TECH DEV
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