Ceramic Composite Nonthermal FIR Emissivity
Solution Overview
Problem
Existing FIR-emitting materials and composites primarily emit broadband blackbody thermal radiation, failing to effectively utilize nonthermal FIR-photon radiation in the 3 - 16 µm wavelength spectrum, which is believed to offer enhanced biochemical reaction rates, due to their emissivity being limited to values less than 1.0, a theoretical limit considered unattainable.
Innovation Solution
A ceramic composite is developed with a solid solution comprising aluminum oxide as the solvent and chromium or iron oxides as solutes, sintered to create a persistent FIR-photon emission mechanism, allowing for the emission of both blackbody thermal radiation and nonthermal FIR-photon radiation in the 3 - 16 µm range, achieving an effective emissivity greater than 1.0 through phonons-activated FIR-photon emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional FIR-emitting materials are used, then broadband blackbody thermal radiation is emitted, but nonthermal FIR-photon radiation in the 3-16 µm range is not effectively utilized
Solution Approach 1:
The patent employs a composite material system consisting of a ceramic matrix (such as aluminum oxide, silicon oxide, zirconium oxide) combined with specific metal oxide additives (such as iron oxide, chromium oxide, manganese oxide, nickel oxide, copper oxide, zinc oxide, or cobalt oxide). This composite structure enables the material to exhibit both blackbody thermal radiation characteristics and nonthermal FIR-photon emission in the 3-16 µm wavelength range, thereby resolving the contradiction between maintaining high emissivity and achieving versatile radiation types.
2Use of energy by moving object
If emissivity is increased beyond 1.0, then nonthermal FIR-photon radiation is enhanced, but the theoretical limit of 1.0 emissivity is exceeded
Solution Approach 1:
The patent changes the physical and chemical parameters of the ceramic material by incorporating specific metal oxide additives in controlled quantities (typically 0.1-10 wt%). This parameter modification enables the material to emit nonthermal FIR-photon radiation in addition to thermal radiation, resulting in an effective emissivity greater than 1.0 in the 3-16 µm range without violating fundamental physical laws, as the material is not a perfect blackbody.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The ceramic composite simultaneously emits thermal and FIR-photon radiation, significantly increasing biochemical reaction rates and achieving positive biological effects by emitting FIR-photons in the 3 - 16 µm range, thereby overcoming the limitations of traditional FIR-emitting materials.
Implementation Method 1
emitting the blackbody-like thermal radiation in 4 - 1,000 μm wavelength spectrum
Implementation Method 2
emitting the stimulated FIR-photon radiation in 3 - 16 μm wavelength band... achieving an effective emissivity greater than 1.0 through phonons-activated FIR-photon emission
Implementation Method 3
FIR photons at 3 - 16 μm wavelengths can be absorbed by molecules in the body causing molecular vibrations
Data Source
AI summary
This invention relates to a ceramic composite that may be used for various purposes including for assembly into a therapeutic device for treating a human or animal body with irradiation of nonthermal far infrared (FIR) radiation. More specifically, while all FIR-related prior art is only radiating broadband blackbody thermal radiation, said ceramic composite can emit not only the usual blackbody thermal radiation but also the inventive nonthermal FIR-photon radiation in the 3 - 16 µm wavelength spectrum. As a result, the overall measurable radiation in 8 - 14 µm wavelength range from said ceramic composite has an approximated blackbody temperature that is at least 1° C. higher than the actual temperature of said ceramic composite, signifying an effective emissivity greater than 1.0, while 1.0 emissivity is a theoretical limit assigned to an ideal black body and thus unsurpassable. It is an outcome of adding the 3 - 16 µm band of nonthermal FIR-photon radiation to the continuous 4 - 1,000 µm band of blackbody thermal radiation.