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🔮 Hydrogen Sensing

Source: Frontiers in Sustainability, 21 January 2021


Hydrogen - A Promising Future Fuel

Use of hydrogen becomes much prevalent in oil industry, material handling, backup power generation and transportation

Why Hydrogen Pressure Sensor Matters?

🌟 Safety - a MUST concern!
🌟 Hydrogen must be handled with care
🌟 Avoid fatality caused by hydrogen permeation and embrittlement
🌟 New certifications and qualifications being mandated for safe use and storage of hydrogen

Key Features I-GLAZ Technology

🌟 MEMs-Based Bulk Silicon Piezo-Resistive Pressure Sensing
🌟 Inorganic Bonding Process of Silicon to Stainless Steel, Titanium, or Nickel / Cobalt Alloys
🌟 Digital Signal Compensated
🌟 One Piece Structure
🌟 Non-welded, No Oil-filled and No Internal O-Ring

Why I-GLAZ Matters?

🌟 Part of compliance to TUV, UL, CSA standards involves media compatibility
🌟 Effects of hydrogen permeability and embrittlement must be tackled
🌟 Sensor material needs to be correctly selected to ensure long and trouble-free service in hydrogen

Tackling Hydrogen Embrittlement

🌟Austenitic steels (e.g. 316L) with low carbon content are well suited to avoid hydrogen embrittlement
🌟 Other factors that make 316L the ideal material for pressure sensors: Molybdenum
🧡 High nickel content
🧡 High stacking fault energy