3 results about "Mechanoluminescence" patented technology

This invention belongs to the field of inorganic solid-state luminescent materials technology, and discloses a green mechanoluminescent composite elastic material and its preparation method, comprising an elastic matrix and a green mechanoluminescent phosphor dispersed in the elastic matrix, wherein the chemical formula of the green mechanoluminescent phosphor is Ba. 0.79 Al 10.9‑x O 17.14 :xMn 2+ (0 < x ≤ 0.35). This green mechanoluminescent composite elastomer still exhibits bright green mechanoluminescence after more than 15,000 tensile cycles. By writing characters on the composite elastomer and mapping the luminescence intensity to different colors, the color changes caused by different stress magnitudes can be clearly observed. This indicates that the prepared mechanoluminescent composite elastomer has great potential in applications such as electronic signatures, anti-counterfeiting, and structural health monitoring.

This disclosure provides a detection strip for detecting whether a test part of an object is deformed. The detection strip includes a strip body and a mechanoluminescent element. The strip body is used to connect with the object to be tested, and the mechanoluminescent element is connected to the first surface of the strip body. The mechanoluminescent element emits light under pressure. When the strip body is connected with the object to be tested, the first surface of the strip body faces the object to be tested, and the mechanoluminescent element is in contact with the test part. When the test part is deformed, the mechanoluminescent element can sense the pressure change caused by the deformation and emit light. Thus, the detection strip can effectively detect whether the test part of the object is deformed. The detection strip has the advantages of simple structure, convenient operation, and real-time continuous monitoring.

This invention relates to the field of nondestructive testing technology for low-carbon steel, specifically disclosing a thermo-sensitive dual-sensitivity composite coating, its preparation method, and its application. The thermo-sensitive dual-sensitivity composite coating comprises a stress-sensitive fluorescent layer and a thermochromic layer. The stress-sensitive fluorescent layer uses core-shell hybrid particles with mechanoluminescence enhancement as key functional fillers, while the thermochromic layer uses an irreversible thermochromic material based on IPN as the core functional material. This invention uses novel self-made functional materials to prepare the stress-sensitive fluorescent layer and thermochromic layer, enabling the thermo-sensitive dual-sensitivity composite coating to possess high-sensitivity signal sensing, optical enhancement, and permanent recording functions. Coupled with load excitation and digital image analysis processes, it transforms the stress-temperature coupled field information excited by deep defects under load into a high-intensity, highly interference-resistant, and permanently recordable visual signal, achieving precise location, quantification, and classification of defects.