Photonic Curing
Photonic Curing - Related Videos
01:25
Accelerated Curing of Concrete
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2024
Accelerating concrete curing is achieved by applying heat and additional moisture. This process accelerates the hydration of the cement, resulting in an earlier strength gain in the concrete. Steam curing is a method wherein the concrete products are either transported through a chamber on a conveyor belt or encased in plastic, allowing steam at atmospheric pressure to circulate freely around them. This process begins with a phase of moist curing that typically lasts between 3 to 5 hours, after...
01:20
Curing of Concrete
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2024
The hydration of cement takes place within the water-filled capillary pores. However, environmental elements can disrupt this process by evaporating water from the concrete surfaces. Sealed concrete with a water-cement ratio below 0.5 experiences self-desiccation, leading to water loss. The water loss in concrete is mitigated by curing. This technique involves keeping the concrete saturated to maintain the necessary temperature and moisture conditions, to optimally fill the spaces in the cement...
01:26
Curing Methods
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2024
Concrete members with a small surface-to-volume ratio are cured by oiling and moistening the forms before casting the concrete member. These forms can be left in place for a prolonged period to prevent moisture loss, and can be wetted if made of a material suitable for wetting. If the forms are removed early, the concrete member is moistened and covered with polythene sheets to maintain moisture. For large horizontal concrete surfaces exposed to dry weather, a temporary covering is suspended...
05:26
A Venturi Effect Can Help Cure Our Trees
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Cited by 24 •
2013
Compared to the more traditional hole-based methods, most of which require the tree to be drilled, tools with lenticular blades transform the basics of endotherapy easing the closure of the wound and allowing the natural uptake of the solutions.
08:44
Fabrication and Testing of Photonic Thermometers
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Cited by 1 •
2018
We describe the process of fabrication and testing of photonic thermometers.
FAQs
Absorption determines where photothermal heating occurs and how effectively the material transforms. When the functional film or its substrate absorbs the applied light, the resulting temperature rise can remove solvent, sinter particles, or drive chemical curing. This localized energy delivery helps process the active layer while limiting heat exposure to the surface beneath it, an important advantage for layered or temperature-sensitive assemblies.
Short-duration pulses provide intense heating over a limited time, while broad-spectrum or tailored light determines which parts of the material system absorb energy. Matching the light to absorption behavior influences whether solvent removal, particle sintering, or chemical curing occurs efficiently. These choices also affect how strongly heat reaches the underlying surface, shaping process compatibility and final material transformation.
The technique concentrates energy in the absorbing film or substrate rather than exposing the whole assembly to prolonged heating. Because the process is rapid and noncontact, the functional layer can undergo thermal transformation while the underlying surface experiences less heat exposure. This distinction supports processing on temperature-sensitive substrates and helps integrate printed functional materials into structures that broader heating could challenge.
Depending on the material system, the rapid thermal event can remove residual solvent, sinter particles, or complete a chemical curing reaction. Solvent removal changes the condition of the deposited film, particle sintering develops a connected functional structure, and chemical curing transforms reactive components into a finished coating or pattern. These outcomes allow one processing approach to support several classes of thin-film fabrication.
A basic workflow begins with a thin film, coating, or printed functional material positioned on its substrate. The material system is then exposed to intense, short-duration light selected as broad-spectrum or tailored illumination. Absorbed energy rapidly heats the target region, producing solvent removal, particle sintering, or chemical curing. The processed layer can then serve as a conductive, sensing, or energy-related component.
Substrate selection matters because the process must transform the deposited material without imposing excessive heat on the supporting surface. Photonic Curing is particularly useful when the substrate is temperature-sensitive, since localized photothermal heating can limit heat exposure below the active layer. This compatibility expands the range of surfaces that can support printed coatings, conductive traces, sensors, and other functional structures.
Engineering applications include fabrication of conductive traces, sensors, photovoltaic components, and other printed electronics. The method can process thin functional layers after deposition, enabling their electrical, sensing, or energy-related roles without requiring prolonged heating of the entire substrate. Its ability to support several material transformations makes it relevant across different printed-device architectures rather than only one component type.
Rapid processing and compatibility with roll-to-roll manufacturing make the technique suited to scalable production of thin films and printed electronics. Continuous material handling can be paired with short light exposures, reducing the time required for each processed region. This combination supports high throughput while retaining localized energy delivery, which can improve compatibility with temperature-sensitive substrates and contribute to energy-efficient manufacturing.