By increasing the structural and functional complexity of sensing materials, the ability to rationally define the precise requirements that will result in desired materials properties becomes increasingly limited.
On the other hand, with the air gap, the material thermal properties become less effective as the gap increases.
Material microstructure and properties become anisotropic during the sintering of cofired ceramics, thin films as well as hot pressed powder compounds.
At this transition point, operating conditions and material properties alone become insufficient to ensure the steady state.
At the core of this new research field is the concept that, as the size of a material is reduced to nanometers, novel physical or chemical properties of the material may emerge that can be drastically different from those of the corresponding bulk phase and the material properties then become size-dependent.
In order to optimize the resulting material properties, it becomes necessary to simulate the entire forming process by taking into account physical effects such as phase transformations.
To utilize these materials, understanding of and relating their microscopic internal structure, surface morphology, and physical properties become indispensable.
For clinical indications with long term loading or structural support requirements, understanding the material's viscoelastic properties becomes increasingly important whereas these properties have not been used historically as preclinical indications of performance or design considerations.
The black silicon, with lower reflectivity, higher absorption at wavelengths from 250 to 2500 nm, and excellent optical and electrical properties, becomes an ideal material in some application devices, such as high-efficiency solar cells, near-infrared detectors, and field emission.
Therefore, the mechanical properties became the most important factors to rank and select proper material.
