Oxygen Sensor Ceramic Introduction

Oxygen Sensor Ceramic — Detailed Product Introduction

Oxygen sensor ceramic, also known as zirconia ceramic sensing element, is the core precision ceramic component for automotive lambda oxygen sensors. It is manufactured from high-purity stabilized zirconia raw materials through ultra-fine grinding, precise molding, high-temperature sintering and strict dimensional finishing processes. It serves as the key functional medium for oxygen concentration detection in vehicle exhaust systems.

Product Features

1. Excellent Oxygen Ion Conductivity

The stabilized zirconia ceramic structure enables stable oxygen ion transmission under high-temperature exhaust conditions. It can accurately identify the oxygen partial pressure difference between the external exhaust gas and internal reference air, ensuring sensitive and linear signal output.

2. Super High Temperature Resistance & Thermal Stability

The ceramic body can continuously work under extreme temperatures ranging from 300℃ to 950℃. It maintains stable physical and chemical properties without deformation, cracking or performance attenuation under frequent cold and hot cycling during vehicle driving.

3. Strong Thermal Shock Resistance

With uniform microstructure and high sintering density, the ceramic element can withstand rapid temperature changes from engine startup, acceleration and flameout. It effectively resists thermal shock damage and guarantees long-term working reliability.

4. Low Gas Leakage Rate & High Air Tightness

Precise ceramic forming technology ensures dense and consistent texture. The ceramic tube or chip features excellent air tightness, preventing gas mixing and ensuring accurate detection results.

5. High Dimensional Consistency

Strict production tolerance control ensures perfect assembly compatibility with various oxygen sensor housings, electrodes and protective tubes. It meets mass production matching requirements for automotive aftermarket and original equipment manufacturers.

Working Principle

When the engine is running, the oxygen sensor ceramic element generates a voltage signal according to the oxygen concentration difference between the ambient air inside the ceramic and the exhaust gas outside. The ECU receives the voltage signal and dynamically adjusts the engine fuel injection volume and air-fuel ratio. This optimizes engine combustion efficiency, reduces fuel waste, lowers harmful exhaust emissions, and ensures vehicle emission standards compliance.

Application Range

• Automobile narrowband / broadband oxygen sensors

• Motorcycle exhaust oxygen detection sensors

• Industrial boiler exhaust gas monitoring equipment

• Environmental gas concentration detection devices

Product Advantages

Our oxygen sensor ceramics feature stable sensing performance, long service life, high consistency and low defective rate. Compared with ordinary ceramic materials, our stabilized zirconia ceramics provide faster signal response, higher detection accuracy and stronger high-temperature aging resistance. They are fully suitable for long-term and high-frequency working conditions of various vehicle engines.

Yixing Shenxing Technology Co., Ltd.

Phone/WeChat/WhatsApp:008618018373518

Email:  yxshenxing88@vip.163.com

Teams:  siri shenxing ceramic