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Method for preparing ceramic rotor by taking rare earth oxide as sintering aid
The invention relates to the technical field of composite material preparation, in particular to a method for preparing a ceramic rotor by taking rare earth oxide as a sintering aid, which is characterized by specifically comprising the following steps of: laying a plurality of layers of glass fiber cloth which reacts and deposits a rare earth modified cerous phosphate coating in advance in a ceramic rotor mold; embedding low-density weight-reducing stuffing among the layers, coating composite glue for fixing, and sintering to obtain a ceramic rotor blank; the composite adhesive is prepared by uniformly mixing unsaturated polyester resin and ceramic powder; the rare earth modified cerous phosphate coating is obtained on the surface of the glass fiber cloth by adopting a chemical vapor deposition method and then is subjected to high-temperature carbonization treatment; and the low-density weight-reducing stuffing is filled in a hole groove formed by a plurality of layers of glass fiber cloth. Compared with the prior art, the invention has the following beneficial effects: the bending strength of the ceramic rotor is greater than or equal to 15Mpa, the acid resistance is greater than or equal to 98%, the alkali resistance is greater than or equal to 99%, and the thermal expansion coefficient is lt; and 5.46 * 10 <-6 >/K.
本发明涉及复合材料制备技术领域，尤其涉及一种以稀土氧化物为助烧结剂制备陶瓷转子的方法，其特征在于，所述方法具体包括：在陶瓷转子模具中铺设若干层事先反应沉积稀土改性磷酸铈涂层的玻璃纤维布，各层之间镶嵌低密度减重填塞物，并涂刷复合胶固定，经烧结处理得到陶瓷转子原坯；复合胶采用不饱和聚酯树脂与陶瓷粉末混合均匀制备获得；稀土改性磷酸铈涂层是在玻璃纤维布表面采用化学气相沉积方法获得，再进行高温碳化处理；低密度减重填塞物被填置在由多层玻璃纤维布形成的孔槽中。与现有技术相比，本发明的有益效果是：陶瓷转子的弯曲强度≥15Mpa，耐酸性≥98％，耐碱性≥99％，热胀系数<5.46×10‑6/K。
Method for preparing ceramic rotor by taking rare earth oxide as sintering aid
The invention relates to the technical field of composite material preparation, in particular to a method for preparing a ceramic rotor by taking rare earth oxide as a sintering aid, which is characterized by specifically comprising the following steps of: laying a plurality of layers of glass fiber cloth which reacts and deposits a rare earth modified cerous phosphate coating in advance in a ceramic rotor mold; embedding low-density weight-reducing stuffing among the layers, coating composite glue for fixing, and sintering to obtain a ceramic rotor blank; the composite adhesive is prepared by uniformly mixing unsaturated polyester resin and ceramic powder; the rare earth modified cerous phosphate coating is obtained on the surface of the glass fiber cloth by adopting a chemical vapor deposition method and then is subjected to high-temperature carbonization treatment; and the low-density weight-reducing stuffing is filled in a hole groove formed by a plurality of layers of glass fiber cloth. Compared with the prior art, the invention has the following beneficial effects: the bending strength of the ceramic rotor is greater than or equal to 15Mpa, the acid resistance is greater than or equal to 98%, the alkali resistance is greater than or equal to 99%, and the thermal expansion coefficient is lt; and 5.46 * 10 <-6 >/K.
本发明涉及复合材料制备技术领域，尤其涉及一种以稀土氧化物为助烧结剂制备陶瓷转子的方法，其特征在于，所述方法具体包括：在陶瓷转子模具中铺设若干层事先反应沉积稀土改性磷酸铈涂层的玻璃纤维布，各层之间镶嵌低密度减重填塞物，并涂刷复合胶固定，经烧结处理得到陶瓷转子原坯；复合胶采用不饱和聚酯树脂与陶瓷粉末混合均匀制备获得；稀土改性磷酸铈涂层是在玻璃纤维布表面采用化学气相沉积方法获得，再进行高温碳化处理；低密度减重填塞物被填置在由多层玻璃纤维布形成的孔槽中。与现有技术相比，本发明的有益效果是：陶瓷转子的弯曲强度≥15Mpa，耐酸性≥98％，耐碱性≥99％，热胀系数<5.46×10‑6/K。
Method for preparing ceramic rotor by taking rare earth oxide as sintering aid
以稀土氧化物为助烧结剂制备陶瓷转子的方法
LIU GAOBIN (author) / WANG KAIMING (author) / LI ZHIHUI (author) / WANG SEN (author) / HAN LU (author) / JU ZELIANG (author) / MENG YUTONG (author)
2022-07-08
Patent
Electronic Resource
Chinese
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