High-Temperature Wear-Resistant Coatings | Ultra-Thin Film PVD China – JLY Precision Tech

High-temperature wear-resistant coatings (0.1-3 µm) from JLY Precision Tech survive 1000 °C and cut friction to 0.04. REACH-compliant, no-MOQ service for aerospace, EV and petro-chem parts. Quote in 48 h.

July 16, 2025

High-Temperature Wear-Resistant Coatings: Ultra-Thin Film PVD Solutions from China’s JLY Precision Tech

When components run above 600 °C—inside jet engines, EV inverters or petro-chemical valves—traditional lubricants vaporise and conventional platings spall. JLY Precision Tech’s high-temperature wear-resistant coatings are ultra-thin films deposited by vacuum PVD and CVD that stay stable to 1000 °C, halve wear rates and preserve micron-level tolerances. This 3 000-word guide gives engineers the data, the process and three brand-new 2024 case studies.

1. What Are High-Temperature Wear-Resistant Coatings?

Property	Electroplated Ni	Thermal Spray	Ultra-Thin Film PVD
Thickness	25–100 µm	100–500 µm	0.1–3 µm
Max temp (air)	500 °C	800 °C	1000 °C
Hardness (HV)	700	1 000	2 500–3 500
Friction vs. steel	0.3	0.4	0.04–0.10
REACH	Restricted	✔	✔

2. Ultra-Thin Film Families & Vacuum Methods

Family	Vacuum Method	Typical Stack	Key Benefit
TiAlCrN	HiPIMS	Ti₀.₅Al₀.₄Cr₀.₁N	1000 °C oxidation barrier
CrAlON	Reactive Sputter	CrAlON gradient	950 °C hot-gas corrosion
ta-C DLC	Filtered Arc	sp³-C	400 °C dry wear
SiBON	PECVD	SiBON nano-layer	900 °C steam resistance

All chambers run lights-out 24/7 with in-situ spectroscopic ellipsometry.

3. Performance Matrix – 2024 Data

Substrate	Coating	Thickness (µm)	Hardness (HV)	Wear Rate 600 °C (mm³/N·m)	Max Temp (°C)
H13 die steel	TiAlCrN	2.0	2 900	1.1 × 10⁻⁶	1000
Inconel 718	CrAlON	1.5	2 400	8.7 × 10⁻⁷	950
316L SS	ta-C DLC	0.8	3 000	5.2 × 10⁻⁷	400
Ti-6Al-4V	SiBON	1.2	2 200	9.0 × 10⁻⁷	900

Data verified by TÜV Rheinland July 2024.

4. Three 2024 Case Studies

Case Study 1 – Turbine Blade Root

Client: European aerospace OEM
Challenge: Fretting at 850 °C between dovetail and disk.
Coating: 2 µm TiAlCrN via HiPIMS + 200 nm a-C:H top.
Result: Wear scar depth < 5 µm after 1 000 h spin test; service interval doubled.

Case Study 2 – EV Inverter Bus Bar

Client: US electric-drive supplier
Problem: Copper oxidation at 400 °C under silicone oil.
Coating: 1 µm CrAlON sputtered layer.
Result: Contact resistance stable; dielectric withstand > 2 kV/mm after 1 000 h.

Case Study 3 – Petro-Chem Valve Stem

Client: Middle-East refinery
Issue: Galling in 700 °C sour gas.
Coating: 1.5 µm SiBON via PECVD.
Result: Zero leakage after 10 000 cycles; maintenance interval 3× longer.

5. Vacuum Process Flow – From CAD to Coated Part

Phase	Key Actions	QC Check	Lead Time
RFQ Review	DFM + thermal FEA	24 h	—
Substrate Prep	Plasma etch + UV/O₃	Contact angle ≤ 8°	2 h
Vacuum Deposition	PVD/CVD @ ≤ 5 × 10⁻³ mbar	±3 nm real-time	2–8 h
Post-Process	Ion-beam polish (optional)	Ra ≤ 0.01 µm	1 h
Final QA	Calot, nano-indent, hot-gas coupons	CpK ≥ 1.67	12 h