Modeling light scattering by spherical pores for calculating the transmittance of transparent ceramics – All you need to know

Aqueous alkaline suitable gel system and related mechanism for highly transparent La0.4Gd1.6Zr2O7 ceramic preparation

“…The Abbe number of La 0.4 Gd 1.6 Zr 2 O 7 ceramic is 34.15. The theoretical transmittance of ceramics can be calculated from the following equation 45 :…”

Fabrication, microstructure, and properties of 8 mol% yttria-stabilized zirconia (8YSZ) transparent ceramics

“…Yttria-stabilized ZrO 2 ceramics show many mechanical and functional advantages, such as high hardness (H), high chemical stability, low thermal conductivity, high oxygen diffusivity, and well-proven biocompatibility [3][4][5]. Cubic yttria-stabilized ZrO 2 (8 mol% yttria-stabilized zirconia (8YSZ)) transparent ceramics have a high refractive index (n) of ~2.2 [6,7], which is higher than those of most optical glasses and most oxide crystals. Based on these advantages, 8YSZ transparent ceramics are expected to serve as the multifunctional material [8][9][10][11], in particular, as optical lenses [12], windows [2], and biomedical prostheses [5,13].…”

ZnO·2.7Al2O3 nanocomposite with high optical transparency

“…4,5 According to Mie's classical scattering theory, a small x(m − 1) value signifies low scattering efficiency, where the parameters, x = πn 1 D/λ and m = n 2 /n 1 , are related to the refractive index of the matrix (n 1 ), that of the scatterer (n 2 ), and the ratio of the scatterer's sphere diameter (D) to the wavelength of incident light (λ). 4,5 Therefore, some optical inhomogeneous systems, such as YAG-γ-Al 2 O 3 6 and MgAl 2 O 4 -Si 3 N 4 7 ceramics, can achieve an acceptable degree of transmittance when D is small enough. Besides, at the micron grain size, a pyrochlore-defective fluorite LaLuZr 2 O 7 8 ceramic is transparent, since m is close to 1.…”

“…However, since the different phases possess disparate optical properties, these interfaces are surely light scattering sources for optical materials. Hence, when introducing just a small amount of secondary phase, polycrystalline materials are usually only translucent even if they are non‐absorbing and fully densified 4,5 . According to Mie's classical scattering theory, a small x ( m − 1) value signifies low scattering efficiency, where the parameters, x = πn 1 D/λ and m = n 2 /n 1 , are related to the refractive index of the matrix ( n 1 ), that of the scatterer ( n 2 ), and the ratio of the scatterer's sphere diameter ( D ) to the wavelength of incident light ( λ ) 4,5 .…”

“…Hence, when introducing just a small amount of secondary phase, polycrystalline materials are usually only translucent even if they are non-absorbing and fully densified. 4,5 According to Mie's classical scattering theory, a small x(m − 1) value signifies low scattering efficiency, where the parameters, x = πn 1 D/λ and m = n 2 /n 1 , are related to the refractive index of the matrix (n 1 ), that of the scatterer (n 2 ), and the ratio of the scatterer's sphere diameter (D) to the wavelength of incident light (λ). 4,5 Therefore, some optical inhomogeneous systems, such as YAG-γ-Al 2 O 3 6 and MgAl 2 O 4 -Si 3 N 4 7 ceramics, can achieve an acceptable degree of transmittance when D is small enough.…”