Researchers at Zhejiang University have indeed published work on a high-temperature “multispectral stealth” material that reduces both infrared and microwave signatures. The study describes a layered metasurface coating designed to make high-speed aircraft or missiles harder to detect by thermal sensors and radar systems, even at temperatures up to 700°C (1,292°F).
The material works by suppressing emissions across several infrared bands — including SWIR, MWIR, and LWIR — while also reducing radar reflections in the X-band microwave range commonly used in tracking systems. According to the published research, the coating achieved significantly lower infrared emissivity and reduced thermal signatures compared with standard reference materials.
A key challenge in stealth technology is that hypersonic vehicles and missiles become extremely hot during flight because of aerodynamic friction and engine exhaust. Traditional stealth coatings often degrade or lose effectiveness at these temperatures. The Zhejiang University team claims its multilayer design maintains performance under those extreme conditions while also improving heat dissipation.
However, claims that this material could “render future U.S. missile defense systems ineffective” should be treated cautiously. Systems like the proposed Golden Dome would likely rely on multiple detection layers — including satellites, radar networks, infrared tracking, electronic intelligence, and interceptor coordination — rather than a single sensor type. Reducing infrared and microwave signatures may complicate detection and tracking, but it would not automatically make missiles invisible or unstoppable.
The underlying research itself appears legitimate and was published in the peer-reviewed journal Nano-Micro Letters under the title High-Temperature Stealth Across Multi-Infrared and Microwave Bands with Efficient Radiative Thermal Management.
