New Ceramic Composite Shatters Strength-Absorption Trade-Off

A research team led by Jun-Tong Huang from Nanchang Hangkong University in China has developed a scalable strategy to create a new type of ceramic composite. This significant development directly addresses the historical challenge of combining structural robustness with crucial functional properties, such as electromagnetic wave absorption, in advanced materials.

Historically, materials designed for effective radar wave absorption often necessitated porosity, a feature that inherently compromised their structural strength. Conversely, dense and robust ceramics, while strong, typically reflected electromagnetic waves, creating a persistent trade-off in material design.

The new ceramic composite is reported to be significantly tougher than previous materials while also performing as a high-performance electromagnetic absorber.

The team's groundbreaking findings were published in the Journal of Advanced Ceramics on January 22, 2026.

Pioneering a Dual-Phase Silicon Carbide Matrix

The core of this innovation lies in a sophisticated modification strategy applied to a dual-phase silicon carbide (SiC) matrix. This matrix is uniquely reinforced by multilayer boron nitride nanosheets (MBNS), leveraging boron nitride's known thermal stability.

To overcome the challenges associated with efficiently processing high-quality nanosheets, the researchers employed an innovative "protective exfoliation" method. This technique, utilizing three-roll milling, enables the mass production of high-integrity MBNS. Subsequently, these robust nanosheets were meticulously integrated into the SiC matrix through a precisely tailored sintering process, optimizing the composite's unique properties.

Addressing Extreme Environment Demands

Jun-Tong Huang, a professor at the School of Materials Science and Engineering at Nanchang Hangkong University, highlighted the critical nature of their work.

"The trade-off between structural strength and functional performance has been a long-standing issue in developing stealth materials for extreme environments," Huang stated. He further elaborated on the team's focused objective: "The objective was to design a microstructure capable of managing mechanical loads while simultaneously dissipating electromagnetic energy."