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Dual-phase inlaid medium-entropy oxide anti-ablation ceramic and preparation method thereof
The invention relates to an anti-ablation ceramic with two-phase inlaid medium-entropy oxide and a preparation method thereof, and belongs to the technical field of ceramic materials, and the method comprises the following steps: firstly, preparing two-phase medium-entropy oxide ceramic powder ((Hf, Zr, Ti) O2 and (Hf, Zr) TiO4) in different proportions by adopting high-temperature heat treatment, and then preparing a complex-phase inlaid structural ceramic by virtue of pressureless sintering. According to the method, a theoretical basis is provided for the design of optimal anti-cyclic ablation performance components of the Hf-Zr-Ti-based multi-element ultra-high-temperature ceramic, and the prepared ceramic powder can also lay a material basis for later application of the ceramic powder to matrix modification and coating preparation. In addition, low-cost and large-scale production can be realized by preparing the dual-phase inlaid medium-entropy oxide anti-ablation ceramic block through pressureless sintering. The process not only can realize low-cost and large-scale production, but also can obtain uniformly-distributed double-phase medium-entropy oxide, fully exerts the mutual synergistic effect of multi-component oxide, and synchronously improves the cyclic thermal shock resistance and ablation resistance of the ceramic block.
本发明涉及一种双相镶嵌中熵氧化物的抗烧蚀陶瓷及其制备方法，属于陶瓷材料技术领域，该方法首先采用高温热处理制得不同比例的双相中熵氧化物陶瓷粉体((Hf,Zr,Ti)O2和(Hf,Zr)TiO4)，然后借助无压烧结制备复相镶嵌结构陶瓷。该方法不仅为Hf‑Zr‑Ti基多元超高温陶瓷最优抗循环烧蚀性能成分设计提供了理论基础，所制备的陶瓷粉体还可为其以后在基体改性和涂层制备的应用奠定物质基础。此外，无压烧结制备双相镶嵌中熵氧化物抗烧蚀陶瓷块体可实现低成本、大规模的生产。该工艺不仅可实现低成本、大规模的生产，还可获得均匀分布的双相中熵氧化物，充分发挥多元氧化物间的相互协同作用，同步提升陶瓷块体抵抗循环热冲击和抗烧蚀性能。
Dual-phase inlaid medium-entropy oxide anti-ablation ceramic and preparation method thereof
The invention relates to an anti-ablation ceramic with two-phase inlaid medium-entropy oxide and a preparation method thereof, and belongs to the technical field of ceramic materials, and the method comprises the following steps: firstly, preparing two-phase medium-entropy oxide ceramic powder ((Hf, Zr, Ti) O2 and (Hf, Zr) TiO4) in different proportions by adopting high-temperature heat treatment, and then preparing a complex-phase inlaid structural ceramic by virtue of pressureless sintering. According to the method, a theoretical basis is provided for the design of optimal anti-cyclic ablation performance components of the Hf-Zr-Ti-based multi-element ultra-high-temperature ceramic, and the prepared ceramic powder can also lay a material basis for later application of the ceramic powder to matrix modification and coating preparation. In addition, low-cost and large-scale production can be realized by preparing the dual-phase inlaid medium-entropy oxide anti-ablation ceramic block through pressureless sintering. The process not only can realize low-cost and large-scale production, but also can obtain uniformly-distributed double-phase medium-entropy oxide, fully exerts the mutual synergistic effect of multi-component oxide, and synchronously improves the cyclic thermal shock resistance and ablation resistance of the ceramic block.
本发明涉及一种双相镶嵌中熵氧化物的抗烧蚀陶瓷及其制备方法，属于陶瓷材料技术领域，该方法首先采用高温热处理制得不同比例的双相中熵氧化物陶瓷粉体((Hf,Zr,Ti)O2和(Hf,Zr)TiO4)，然后借助无压烧结制备复相镶嵌结构陶瓷。该方法不仅为Hf‑Zr‑Ti基多元超高温陶瓷最优抗循环烧蚀性能成分设计提供了理论基础，所制备的陶瓷粉体还可为其以后在基体改性和涂层制备的应用奠定物质基础。此外，无压烧结制备双相镶嵌中熵氧化物抗烧蚀陶瓷块体可实现低成本、大规模的生产。该工艺不仅可实现低成本、大规模的生产，还可获得均匀分布的双相中熵氧化物，充分发挥多元氧化物间的相互协同作用，同步提升陶瓷块体抵抗循环热冲击和抗烧蚀性能。
Dual-phase inlaid medium-entropy oxide anti-ablation ceramic and preparation method thereof
一种双相镶嵌中熵氧化物的抗烧蚀陶瓷及其制备方法
ZHANG YULEI (author) / LI JIACHEN (author) / LU FANYU (author) / LI TAO (author) / LI HEJUN (author)
2024-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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