Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ synthesis YAG phase reinforced AlON ceramic material and preparation method thereof
The invention discloses an in-situ synthesis YAG phase reinforced AlON ceramic material and a preparation method thereof. According to the method, Al2O3 and AlN are taken as raw materials, Y2O3 is taken as an auxiliary agent, and the high-performance AlON ceramic is successfully prepared by adopting a three-stage SPS process. A YAG liquid phase is generated in a ceramic preparation process through precise regulation and control of a sintering process, and the liquid phase is ensured to be uniformly distributed in gaps of powder particles and is completely dissolved in a ceramic matrix in a solid state at the final stage of sintering through further optimization of the process. The introduction of the YAG liquid phase significantly reduces the reaction temperature of Al2O3 and AlN, accelerates the densification of the material, and initiates the fine grain strengthening effect. Meanwhile, the YAG liquid phase is dissolved in a ceramic matrix in a solid solution mode in the later stage of sintering, and the solid solution strengthening effect is triggered. While the mechanical property of the AlON ceramic is remarkably improved, the low-temperature rapid preparation of the material is realized, the energy consumption and the production cost are reduced, and the method has a wide industrial application prospect.
本发明公开了一种原位自生YAG相增强AlON陶瓷材料及其制备方法。该方法以Al2O3和AlN为原料，Y2O3为助剂，采用三段式SPS工艺成功制备出高性能AlON陶瓷。通过对烧结过程的精准调控，在陶瓷制备过程中生成YAG液相，并通过进一步优化工艺，确保该液相均匀分布于粉体颗粒间隙，并在烧结末期完全固溶于陶瓷基体中。YAG液相的引入显著降低了Al2O3与AlN的反应温度，加速了材料的致密化，并引发了细晶强化效应。同时，YAG液相在烧结后期固溶于陶瓷基体中，触发了固溶强化效应。在显著提升AlON陶瓷力学性能的同时，该方法实现了材料的低温快速制备，降低了能源消耗和生产成本，具有广泛的工业应用前景。
In-situ synthesis YAG phase reinforced AlON ceramic material and preparation method thereof
The invention discloses an in-situ synthesis YAG phase reinforced AlON ceramic material and a preparation method thereof. According to the method, Al2O3 and AlN are taken as raw materials, Y2O3 is taken as an auxiliary agent, and the high-performance AlON ceramic is successfully prepared by adopting a three-stage SPS process. A YAG liquid phase is generated in a ceramic preparation process through precise regulation and control of a sintering process, and the liquid phase is ensured to be uniformly distributed in gaps of powder particles and is completely dissolved in a ceramic matrix in a solid state at the final stage of sintering through further optimization of the process. The introduction of the YAG liquid phase significantly reduces the reaction temperature of Al2O3 and AlN, accelerates the densification of the material, and initiates the fine grain strengthening effect. Meanwhile, the YAG liquid phase is dissolved in a ceramic matrix in a solid solution mode in the later stage of sintering, and the solid solution strengthening effect is triggered. While the mechanical property of the AlON ceramic is remarkably improved, the low-temperature rapid preparation of the material is realized, the energy consumption and the production cost are reduced, and the method has a wide industrial application prospect.
本发明公开了一种原位自生YAG相增强AlON陶瓷材料及其制备方法。该方法以Al2O3和AlN为原料，Y2O3为助剂，采用三段式SPS工艺成功制备出高性能AlON陶瓷。通过对烧结过程的精准调控，在陶瓷制备过程中生成YAG液相，并通过进一步优化工艺，确保该液相均匀分布于粉体颗粒间隙，并在烧结末期完全固溶于陶瓷基体中。YAG液相的引入显著降低了Al2O3与AlN的反应温度，加速了材料的致密化，并引发了细晶强化效应。同时，YAG液相在烧结后期固溶于陶瓷基体中，触发了固溶强化效应。在显著提升AlON陶瓷力学性能的同时，该方法实现了材料的低温快速制备，降低了能源消耗和生产成本，具有广泛的工业应用前景。
In-situ synthesis YAG phase reinforced AlON ceramic material and preparation method thereof
一种原位自生YAG相增强AlON陶瓷材料及其制备方法
JIA XIAOTONG (Autor:in) / CHENG XINGWANG (Autor:in) / ZHANG CHAOHUI (Autor:in) / ZHOU JINCHAO (Autor:in) / WANG QIANG (Autor:in) / HE YANGYU (Autor:in)
12.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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