Transparent ultraviolet-proof ceramic material and preparation method thereof
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A ceramic material, anti-ultraviolet technology, applied in the field of new materials, can solve problems such as restricting transparent ceramics
Pending Publication Date: 2021-06-08
董利平
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Problems solved by technology
[0003] But only being transparent limits the use of transparent ceramics. If transparent ceramic ma
Method used
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Embodiment 1
[0056] Embodiment 1: transparent anti-ultraviolet ceramic material one:
[0057] A transparent UV-resistant ceramic material, the components of the ceramic material are in parts by weight:
[0058] The weight fraction of yttrium oxide is 45 parts, the weight fraction of zinc powder is 10 parts, the weight fraction of lanthanum oxide is 4 parts, the weight fraction of neodymium oxide is 1 part, and the weight fraction of titanium dioxide is 5 parts.
[0059] The preparation method of this ceramic material is as follows:
[0060] (1) Mix 40 parts by weight of yttrium oxide, 10 parts of zinc powder, 4 parts of lanthanum oxide and 1 part of neodymium oxide to form a mixture; add to the mixture with a volume ratio of 1:1 The dehydrated ethanol is made into wet material, and the wet material is placed in a ceramic ball mill for grinding, and the grinding time is 1.5h;
[0061] (2) Place the ground wet material in a roasting furnace for the first high-temperature calcination at a t...
Embodiment 2
[0069] Embodiment 2: transparent anti-ultraviolet ceramic material two:
[0070] A transparent UV-resistant ceramic material, the components of the ceramic material are in parts by weight:
[0071] The weight fraction of yttrium oxide is 90 parts, the weight fraction of zinc powder is 20 parts, the weight fraction of lanthanum oxide is 8 parts, the weight fraction of neodymium oxide is 2 parts, and the weight fraction of titanium dioxide is 10 parts.
[0072] The preparation method of this ceramic material is as follows:
[0073] (1) Mix 80 parts by weight of yttrium oxide, 20 parts of zinc powder, 8 parts of lanthanum oxide and 2 parts of neodymium oxide to form a mixture; add to the mixture with a volume ratio of 1:1 The dehydrated ethanol is made into wet material, and the wet material is placed in a ceramic ball mill for grinding, and the grinding time is 3h;
[0074] (2) Place the ground wet material in a roasting furnace for the first high-temperature calcination at a ...
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Abstract
The invention discloses a transparent ultraviolet-proof ceramic material and a preparation method thereof. The preparation method comprises the following steps: treating a mixed material of yttrium oxide, zinc powder, lanthanum oxide and neodymium oxide in a manner of calcining for three times and ball-milling for three times to prepare a relatively homogeneous yttrium oxide-zinc oxide composite material; and placing a yttrium oxide and titanium dioxide mixed material on the surface layer of a ceramic material after annealing, during first-stage microwave sintering, fusing titanium dioxide again, and forming a thin film on the surface of the ceramic material through the fused titanium dioxide. Not only is the transmission of light of the ceramic material not affected, but also the ultraviolet-proof performance is enhanced, and yttrium oxide sinks into the ceramic material; The annealing treatment is carried out before the sintering, then the microwave sintering is carried out, first-stage microwave sintering is carried out under the pressurization condition, and second-stage vacuum microwave sintering is carried out; and the ceramic material taking the yttrium oxide-zinc oxide composite material as the main body has the ultraviolet-proof performance and also has the light transmission performance.
Description
technical field [0001] The invention relates to the field of new materials, in particular to a transparent anti-ultraviolet ceramic material and a preparation method thereof. Background technique [0002] The traditional ceramic is a polycrystalline material with a multi-component heterogeneous structure and impurities with large grains, pores and even glasses with different refractive indices inside. The existence of these multi-component heterogeneous structures and impurities will cause serious reflection, refraction and scattering when light passes through, resulting in the opaque state of traditional ceramic materials in the visible light region. Transparent ceramics, which are different from traditional ceramics, have extremely far-reaching significance in lighting technology, optics, special instrument manufacturing, radio electronics and high-temperature technology. Transparent ceramics have many excellent properties such as high strength and hardness, corrosion res...
Claims
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Application Information
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