Yttrium oxide-stabilized zirconia ceramic sensor and manufacturing process thereof

By using yttria-stabilized zirconia ceramic sensors and using a combination of ZrO2, Y2O3 and sintering accelerators, the problems of magnesium-stabilized zirconia sensors with unstable reproducibility and thermal shock resistance are solved, achieving higher oxygen concentrations. Detection accuracy and reliability.

CN107778005AInactive Publication Date: 2018-03-09SHANGHAI PRABO METALLURGICAL DETECTION PROBE CO LTD
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Patent Information

Application Number
CN201610721885.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2016-08-25
Publication Date
2018-03-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing magnesium-stabilized zirconia sensors are unstable in terms of reproducibility, thermal shock resistance and low oxygen detection, and cannot meet the online detection needs of oxygen concentration difference batteries in the metallurgical industry.

Method used

Yttria-stabilized zirconia ceramic sensor is used. The material composition includes ZrO2, Y2O3 and sintering accelerator. Through specific preparation process steps such as ball milling, dewaxing and sintering, an oxide ceramic sensor with excellent thermal shock resistance and high-temperature electronic conductivity is prepared. Zirconium ceramic sensor.

Benefits of technology

The stability, thermal shock resistance and high-temperature electronic conductivity of the zirconia sensor are improved, and the detection accuracy and reliability in oxygen concentration difference batteries are significantly improved.

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Abstract

The invention discloses an yttrium oxide-stabilized zirconia ceramic sensor and a manufacturing process thereof. The yttrium oxide stabilized zirconia ceramic sensor is made of 60-94 percent by weightof ZrO2, 1-35.25 percent by weight of Y2O3 and 0.1-5 percent by weight of a sintering accelerator. The yttrium oxide-stabilized zirconia ceramic sensor solves the problem that the thermal shock occurs when yttrium-stabilized zirconia is used in an oxygen sensor at home, the yttrium-stabilized zirconia is superior to magnesium-stabilized zirconia in stability, thermal shock resistance and high-temperature electronic conductivity, and an oxygen concentration difference battery is improved to a new level.
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