Shimadzu MSE2400 Filament Material Analysis Yttria-Coated Iridium Long Life Low Volatilization

I. Yttria-Coated Iridium Material Composition

1. Iridium (Ir) Base Material

Iridium is one of the most high-temperature-resistant and corrosion-resistant metals in the platinum group, dedicated to vacuum mass spectrometer filaments.

Iridium wire is the only preferred choice for vacuum mass spectrometer filaments.

2. Yttria (Y₂O₃) Coating

Yttria as emission coating significantly reduces iridium surface electron escape work, improving ion emission efficiency.

II. 3 Functions of Yttria Coating

1. Reduce Working Temperature

· Reduce 100-200℃ (at same emission current)

· Reduce iridium high temperature evaporation

· Extend filament life 50%+

2. Suppress Metal Ion Volatilization

· Coating as "self-healing layer", continuous supply

· Reduce ion source chamber pollution

· Maintain low background signal

3. Improve Ion Emission Efficiency

· Electron escape work reduced

· Stable ion emission

· Detection sensitivity improved 20%+

III. 4 Performance Advantages of Iridium Base

IV. Lifetime Test Data

Yttria iridium filament lifetime is 50-100% longer than ordinary filament.

V. 4 OEM Process Standards

1. Vacuum Annealing

· 1100℃ × 2h

· Eliminate processing stress

· Improve wire stability

2. Surface Plasma Cleaning

· Remove organic contamination

· Improve coating adhesion

· Guarantee emission performance

3. Precision Winding

· Diameter tolerance ±0.01mm

· Turn count tolerance ±0.5

· Sturdy structure not easy to deform

4. Vacuum Packaging

· Independent shockproof packaging

· Vacuum sealed transport

· Guarantee factory performance

VI. 6-Dimension Comparison: Yttria Iridium vs Ordinary Tungsten

VII. Long Life Low Volatilization Core Value

1. Long Life Value

· Replacement frequency reduced 50%

· Maintenance hours reduced

· Parts inventory pressure reduced

2. Low Volatilization Value

· Ion source chamber cleanliness improved

· Detection background signal reduced 80%

· Calibration frequency reduced

· Data stability improved

3. Comprehensive TCO Advantage

· Single purchase cost 30% higher

· Comprehensive use cost 40% lower

· Long-term use cost-effective outstanding

VIII. 9 FAQ

Q1: Will yttria coating peel off?

A: OEM process ensures coating and base firmly bonded, normal use will not peel.

Q2: What are signs of filament life decay?

A: Emission current decline, detection sensitivity attenuation, background signal increase. Recommend early replacement.

Q3: Can re-coat yttria?

A: Not recommended. Re-coating quality uncontrollable, recommend direct replacement new filament.

Q4: What to note for filament storage?

A: Vacuum/dry environment, avoid vibration, shelf life 24 months.

Q5: Is detection sensitivity decline always filament issue?

A: Not necessarily. Need to exclude other detector components issues first, then judge filament.

Q6: How much more expensive is yttria iridium than ordinary?

A: Single purchase 30% more expensive, TCO save 40%.

Q7: What working conditions can it be used for?

A: Semiconductor/lab/industrial/research all vacuum mass spectrometer scenarios.

Q8: How long is procurement cycle?

A: Spot 24h, batch 3-7 days, custom 15-30 days.

Q9: How long is the warranty?

A: Process defects 12-month warranty.

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