Novel transparent ZnO·3Al2O3 ceramics prepared by reactive hot isostatic pressing

ZnO·2.7Al2O3 nanocomposite with high optical transparency

“…Preparation of the transparent ZnO·2.7Al 2 O 3 ceramic followed a similar route for ZnO·3Al 2 O 3 14 . The starting powders of commercial α‐Al 2 O 3 (average particle size 0.15–0.20 μm) and homemade ZnAl 2 O 4 (similar in shape and size with Al 2 O 3 14 ) were mixed according to the designed formula Zn 3.5 Al 19 O 32 with an aqueous solution of organic additives 14 . Later, the slurry was ball milled for 12 h to ensure homogeneity and then freeze‐dried.…”

“…Accordingly, their properties are tunable to satisfy specific needs. For one thing, the intrinsic physical properties show a significant compositional tailoring effect 11–14 . Take ZnO· n Al 2 O 3 as an example, the microwave dielectric loss is remarkably reduced with the rise of n 12,14 .…”

“…For one thing, the intrinsic physical properties show a significant compositional tailoring effect. [11][12][13][14] Take ZnO⋅nAl 2 O 3 as an example, the microwave dielectric loss is remarkably reduced with the rise of n. 12,14 For another, process variables are profoundly influenced by stoichiometry. 11,[14][15][16][17] Further, the microstructure is closely associated with the sintering condition and affects the product performance.…”

“…[11][12][13][14] Take ZnO⋅nAl 2 O 3 as an example, the microwave dielectric loss is remarkably reduced with the rise of n. 12,14 For another, process variables are profoundly influenced by stoichiometry. 11,[14][15][16][17] Further, the microstructure is closely associated with the sintering condition and affects the product performance. 18,19 In addition, it is worth noting that below the solvus temperature the non-stoichiometric spinel compounds are thermodynamically unstable.…”

“…For one thing, the intrinsic physical properties show a significant compositional tailoring effect 11–14 . Take ZnO· n Al 2 O 3 as an example, the microwave dielectric loss is remarkably reduced with the rise of n 12,14 . For another, process variables are profoundly influenced by stoichiometry 11,14–17 .…”