Yttrium oxide-magnesium oxide infrared multiphase ceramic and preparation method thereof: Fid-Bau Portal

Yttrium oxide-magnesium oxide infrared multiphase ceramic and preparation method thereof

LU ZHILING

The invention belongs to the field of multiphase ceramic manufacturing, and discloses yttrium oxide-magnesium oxide infrared multiphase ceramic. The yttrium oxide-magnesium oxide infrared multiphase ceramic comprises yttrium oxide nano-powder and magnesium oxide nano-powder, wherein a material ratio of the yttrium oxide nano-powder to the magnesium oxide nano-powder is (1-3): (1-3). The yttrium oxide-magnesium oxide infrared multiphase ceramic of the invention has the advantages of high transmittance, low high-temperature emissivity, excellent high-temperature mechanical properties, good thermal shock resistance and the like. The invention also provides a preparation method of the yttrium oxide-magnesium oxide infrared multiphase ceramic. The preparation method comprises the following steps: taking yttrium oxide and magnesium oxide nanopowder as raw materials, preparing yttrium oxide-magnesium oxide nanometer multiphase powder with different material proportions by using a ball-milling mixing method, and then preparing the yttrium oxide-magnesium oxide infrared multiphase ceramic by using a hot-pressing sintering method. The beneficial effects of the ceramic are as described above.

本发明属于复相陶瓷制造领域，公开了一种氧化钇‑氧化镁红外复相陶瓷，包括氧化钇纳米粉体和氧化镁纳米粉体，且所述氧化钇纳米粉体和氧化镁纳米粉体的物料比为1～3:1～3。本发明具备透过率高、高温发射率低，高温力学性能优良、抗热冲击性好等优点。本发明还提供一种氧化钇‑氧化镁红外复相陶瓷的制备方法，包括以氧化钇、氧化镁纳米粉体为原料，通过球磨混合方法制备了不同物料配比的氧化钇‑氧化镁纳米复相粉体，然后采用热压烧结方法制得氧化钇‑氧化镁红外复相陶瓷。其有益效果如上述所述。

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