A translucent three-dimensional honeycomb ceramic mesh
A three-dimensional honeycomb, translucent technology, applied in the direction of ceramic products, applications, household appliances, etc., can solve the problem of no visible light transparent (or translucent) honeycomb ceramics, no visible light translucent three-dimensional honeycomb ceramic network reports and other problems , to improve the utilization rate and photocatalytic reaction efficiency, improve the photocatalytic reaction efficiency, and expand the application effect.
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Embodiment 1
[0049] Embodiment 1: 40 pieces of visible light translucent three-dimensional honeycomb ceramic nets were obtained according to the above-mentioned implementation method, and the various parameters measured by the manufacturing method and samples were as follows:
[0050] (1) Various raw materials (all analytically pure, commercially available) and mixed mass parts
[0051] The main raw material is high-purity, ultra-fine alumina α-Al 2 o 3 The content is 99.999%, the impurity content Si is less than 5ppm, Na is less than 1ppm, Fe is less than 3ppm, the average particle size is 0.1-0.5μm, and the apparent density or bulk density is 0.3-0.6g / cm 3 ), the number of mass components in the mixed raw material is 100.
[0052] Sintering aid: Y(NO 3 ) 3 ·6H 2 The mass component number of O in the mixed raw material is 0.4, La(NO 3 ) 3 ·6H 2 The mass component number of O in the mixed raw material is 0.2, Zn(NO 3 ) 2 ·6H 2 The mass component number of O in the mixed raw mate...
Embodiment 2
[0066] Embodiment 2: the mass fraction of sintering aid in embodiment 1 is halved, namely Y(NO 3 ) 3 ·6H 2 O is 0.2, La(NO 3 ) 3 ·6H 2 O is 0.1, Zn(NO 3 ) 2 ·6H 2 O is 0.1, Mg(NO 3 ) 2 ·6H 2 O is 0.15, and the main raw material is aluminum oxide, the lubricant is glycerin, the binder is hydroxypropyl cellulose, the defoamer is n-butanol and the mass fraction of distilled water is constant. At the same time, the processes and testing items such as raw material mixing and processing, dry green body preparation and cutting, and firing system are also kept the same as in Example 1. The test results of the three-dimensional honeycomb ceramic mesh sample are as follows:
[0067] The appearance size, wall thickness, etc. are the same as the sample in Example 1, but the bulk density is reduced to 0.60g / cm 3 , the axial compressive strength decreased to 68Mpa, and the radial compressive strength decreased to 20Mpa. The light transmittance of the translucent thin plate of si...
Embodiment 3
[0068] Example 3: The main raw material in Example 1 is replaced by alumina with a purity of 99.7% and an average particle size of 0.6 to 1.0 μm, while the other four sintering aids, lubricants, binders, defoamers and distilled water The purity and mass parts remain unchanged. At the same time, the processes and testing items such as raw material mixing and processing, dry green body preparation, cutting, and firing are also kept the same as in Example 1. The three-dimensional honeycomb ceramic mesh sample and the testing results are as follows:
[0069] The appearance size, wall thickness, etc. are the same as the sample in Example 1, but the bulk density is reduced to 0.55g / cm 3 , the axial compressive strength decreased to 60Mpa, the radial compressive strength decreased to 8.5Mpa, and the light transmittance of the translucent sheet of the similar sample was only 0%, indicating that the purity and fineness of the main raw material alumina have a great influence on the perf...
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Abstract
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