1. Diamond-Like Carbon PVD Advantages – Executive Summary
Advantage ta-C DLC (PVD) Electroplated Ni Spray Paint Hardness (HV) 3 000 700 200 Friction vs. steel 0.04 0.3 0.4 Max service temp (°C) 1 000 300 150 Wear rate @ 600 °C 5.2×10⁻⁷ mm³/N·m 5.0×10⁻⁵ 1.2×10⁻⁴ FDA/REACH ✅ Compliant ⚠️ Restricted ⚠️ Limited
2. 2024 Performance Matrix – ta-C DLC vs Legacy Finishes
Metric ta-C DLC TiAlCrN Electroless Ni DLC Spray Thickness (µm) 0.1–3 1–5 5–50 25–100 Salt-spray (h) 1 000 1 200 48 48 Biocompatibility ✅ ✅ ❌ ❌ Cost / m² (China) 2.8 USD 3.2 USD 2.5 USD 0.8 USD
3. How DLC Works – From sp³ Bonds to Surface
Step Vacuum Level Temp (°C) Action KPI 1 Plasma Clean 10⁻³ mbar 25 Ar⁺ removes oxide & oil Contact angle ≤ 8° 2 Bond Layer 10⁻³ mbar 200 50 nm Cr for adhesion Calot ±2 nm 3 ta-C Deposition 10⁻⁴ mbar 150–400 Filtered arc sp³-C ±3 nm uniformity 4 QA & Pack Air 25 CT + nano-indent + salt-spray CpK ≥ 1.67
4. Three 2024 Case Studies
Case 1 – Medical Drill (ta-C DLC)
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Client: EU MedTech startup, 2024
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Challenge: 316L drill needs CE-compliant low-friction finish
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Stack: ta-C 300 nm + Cr 30 nm
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Outcome: Penetration force −25 %, CE mark granted
Case 2 – EV Motor Punch (ta-C DLC)
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Client: US EV Tier-1, 2024
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Challenge: 0.35 mm electrical steel sticking at 400 °C
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Stack: ta-C 1 µm on H13
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Outcome: Tool life 4× longer, scrap −40 %
Case 3 – Optical Lens (ta-C DLC)
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Client: Global OEM, 2024
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Challenge: BK7 glass needs AR + scratch resistance
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Stack: ta-C 100 nm + SiO₂ 200 nm
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Outcome: Reflection < 0.2 %, 9H hardness
5. Global Standards & Sustainability
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ISO 9001:2015 / IATF 16949 / ISO 13485
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REACH, RoHS, FDA 21 CFR §175.300
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Energy: 0.35 kWh per m²
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Waste: Zero liquid effluent
6. 7-Day Delivery Timeline
Milestone Lead Time DFM + Quote 24 h Prototype (1–10 pcs) 48 h Validation (CT, salt-spray) 5 days Mass Production 7–10 days Door-to-Door Delivery 12 days total
7. FAQs – Advantages in Real-World Use
Question Answer Can DLC coat plastics? Yes, PEEK, LCP. Largest part? 800 mm Ø × 1200 mm L. Minimum order? 1 piece.
8. How to Order Tomorrow
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Email [email protected] with STEP/IGES.
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Specify substrate, load, temperature, thickness budget.
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Receive DFM + diamond-like carbon PVD advantages quote within 48 h.
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Approve → 3-day prototype → volume ramp.
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