Advancements in Microwave Absorption Motivated by Interdisciplinary Research

Area of Science:

• Materials Science
• Electromagnetics
• Applied Physics

Background:

• Microwave absorption materials (MAMs) originated for military applications but have expanded into various technological fields.
• Despite research advancements, MAMs face limitations in scope and widespread adoption.
• Current MAM research often focuses on traditional metrics like thinness and strength.

Purpose of the Study:

• To review the historical development of MAMs from coatings to functional absorbers.
• To identify key challenges impeding MAM maturation and propose solutions.
• To explore emerging applications and the concept of next-generation smart absorbers.

Main Methods:

• Literature review of MAMs' historical evolution and applications.
• Analysis of bottlenecks hindering MAM development and adoption.
• Identification of novel approaches including machine learning and broader spatial scales.
• Examination of applications in medicine, mechanics, energy, optics, and sensing.

Main Results:

• MAMs have transitioned from basic coatings to sophisticated functional absorbers.
• Bottlenecks include limited scope, characterization challenges, and lab-to-market gaps.
• Potential solutions involve broader scales, advanced characterization, liquid media, ML, and industry proximity.
• New applications beyond absorption efficiency are emerging in diverse fields.

Conclusions:

• Next-generation smart absorbers represent an interdisciplinary shift, focusing on broader functionalities.
• Addressing identified bottlenecks is crucial for the widespread adoption of advanced MAMs.
• Effective utilization of electromagnetic waves via third-generation MAMs aligns with future technological demands.