China's space program has achieved a groundbreaking milestone by heating tungsten alloy to 3,100°C aboard the Tianhe space station core module – the highest temperature ever recorded in space material science experiments. This achievement, equivalent to nearly half the sun's surface temperature, demonstrates significant progress in developing heat-resistant materials for extreme environments.
The experiment utilized a container-free laboratory cabinet that has operated continuously for four years, testing advanced alloys capable of withstanding rocket engine conditions. Researchers from Northwestern Polytechnical University collaborated with astronauts to levitate molten tungsten using electrostatic technology, overcoming Earth's gravitational limitations.
Professor Hu Liang explained the dual advantages of space-based testing: "Microgravity enables perfect spherical shaping of molten tungsten and prevents element separation in alloys – both critical for optimizing material properties." Tungsten's extraordinary 3,412°C melting point makes it vital for nuclear fusion reactors and spacecraft components.
This breakthrough provides unprecedented data on ultra-high temperature material behavior, with potential applications in:
Next-generation nuclear energy systems
Advanced rocket propulsion technology
Spacecraft thermal protection solutions
The successful experiment validates China's self-developed space laboratory equipment while contributing to global material science knowledge. Researchers emphasize these findings could accelerate development of superior tungsten alloys, strengthening technological capabilities in strategic industries.
