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Materiales de Gestión Térmica Arquitecturados con Metal Líquido: Ingeniería de Vacíos para Alta Conductividad Térmica
Jeongmin Jo1,2, Yongchan Jang1, Ji-Hun Seo2
1Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute, Seongnam-si, Gyeonggi-do, Republic of Korea.
Small (Weinheim an der Bergstrasse, Germany)
|January 25, 2026
Resumen
Este estudio presenta una nueva técnica de ingeniería de vacíos para compuestos de silicona, que aumenta significativamente la conductividad térmica y la retardancia de llama. Este método mejora el rendimiento de la electrónica avanzada al crear rellenos multifuncionales y eliminar los vacíos internos.
Área de la Ciencia:
- Ciencia de los materiales
- Ciencia de polímeros
- Nanotecnología
Sus antecedentes:
- Los materiales de gestión térmica requieren alta conductividad térmica y retardancia de llama para la electrónica de alto rendimiento.
- Lograr ambas propiedades simultáneamente presenta un desafío significativo debido a los requisitos materiales contradictorios.
Objetivo del estudio:
- Desarrollar materiales avanzados de gestión térmica con mayor conductividad térmica y retardancia de llama.
- Abordar las limitaciones de los materiales actuales para aplicaciones electrónicas de alta potencia mediante una ingeniería de vacíos innovadora.
Principales métodos:
- Ingeniería de vacíos arquitecturados con metal líquido en compuestos de silicona mediante encapsulación mecanoquímica.
- Creación de rellenos multifuncionales de núcleo-cubierta de nitruro de aluminio (AlN) con galio-indio (EGaIn) eutéctico.
- Control sistemático de la microestructura interfacial para eliminar los vacíos inducidos por el procesamiento y promover la formación de redes térmicas.
Principales resultados:
- Se logró una conductividad térmica excepcional en el plano de 4,60 W m-1 K-1 y fuera del plano de 5,27 W m-1 K-1 con una carga del 50 % en volumen.
- Se demostró una mejora de 2,19 a 2,69 veces en la conductividad térmica en comparación con los compuestos prístinos.
- La eliminación de vacíos se correlacionó con un transporte térmico superior, integridad mecánica y una mayor retardancia de llama, lo que redujo la liberación total de calor en un 13,39 %.
Conclusiones:
- La ingeniería sistemática de vacíos a través de rellenos de núcleo-cubierta arquitecturados con metal líquido ofrece una solución práctica para materiales de gestión térmica de alto rendimiento.
- Este enfoque equilibra con éxito la alta conductividad térmica y la retardancia de llama, cumpliendo con las demandas de seguridad y rendimiento para la electrónica avanzada.
- Los materiales desarrollados proporcionan un camino para los sistemas electrónicos de próxima generación que requieren una gestión térmica superior y seguridad contra incendios.
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