A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-entropy ceramic with high hardness and oxidation resistance and preparation method thereof
The invention discloses a high-hardness antioxidant high-entropy ceramic which comprises the following elements: Ti, Cr, Mo, Hf, Zr and B, and the atomic percentage of Ti: Cr: Mo: Hf: Zr: B is 1: 1: 1: 1: 1: 10. The preparation method of the high-entropy ceramic comprises the following steps: preparing the raw materials into powder by adopting pressureless sintering, and preparing the raw materials into blocks by adopting SPS. According to the preparation method, the high-entropy ceramic powder is prepared by adopting a carbon-boron thermal reduction method, the high-entropy ceramic block is prepared by adopting spark plasma sintering, required experimental equipment is simple, the operation is easy, the production is convenient, meanwhile, the oxidation layer cannot be obviously peeled off within 456 hours after the oxidation is performed at 1000 DEG C, and the high-entropy ceramic block has relatively good oxidation resistance. The high-entropy ceramic prepared by the invention has more excellent oxidation resistance, thermodynamic property and entropy stability.
本发明公开了一种高硬度、抗氧化的高熵陶瓷，包括元素Ti、Cr、Mo、Hf、Zr和B，其原子百分比为Ti:Cr:Mo:Hf:Zr:B＝1:1:1:1:1:10。高熵陶瓷的制备方法为将原料采用无压烧结制备成粉，SPS制备成块体。本发明采用了碳硼热还原法制备高熵陶瓷粉体，以及放电等离子烧结制备高熵陶瓷块体，所需实验设备简单，操作容易，便于生产，同时在1000℃氧化456h以内，该氧化层不会出现明显剥落，具有较好的抗氧化能力。本发明制备的高熵陶瓷具有更为优良的抗氧化性能、热力学性能和熵稳定性。
High-entropy ceramic with high hardness and oxidation resistance and preparation method thereof
The invention discloses a high-hardness antioxidant high-entropy ceramic which comprises the following elements: Ti, Cr, Mo, Hf, Zr and B, and the atomic percentage of Ti: Cr: Mo: Hf: Zr: B is 1: 1: 1: 1: 1: 10. The preparation method of the high-entropy ceramic comprises the following steps: preparing the raw materials into powder by adopting pressureless sintering, and preparing the raw materials into blocks by adopting SPS. According to the preparation method, the high-entropy ceramic powder is prepared by adopting a carbon-boron thermal reduction method, the high-entropy ceramic block is prepared by adopting spark plasma sintering, required experimental equipment is simple, the operation is easy, the production is convenient, meanwhile, the oxidation layer cannot be obviously peeled off within 456 hours after the oxidation is performed at 1000 DEG C, and the high-entropy ceramic block has relatively good oxidation resistance. The high-entropy ceramic prepared by the invention has more excellent oxidation resistance, thermodynamic property and entropy stability.
本发明公开了一种高硬度、抗氧化的高熵陶瓷，包括元素Ti、Cr、Mo、Hf、Zr和B，其原子百分比为Ti:Cr:Mo:Hf:Zr:B＝1:1:1:1:1:10。高熵陶瓷的制备方法为将原料采用无压烧结制备成粉，SPS制备成块体。本发明采用了碳硼热还原法制备高熵陶瓷粉体，以及放电等离子烧结制备高熵陶瓷块体，所需实验设备简单，操作容易，便于生产，同时在1000℃氧化456h以内，该氧化层不会出现明显剥落，具有较好的抗氧化能力。本发明制备的高熵陶瓷具有更为优良的抗氧化性能、热力学性能和熵稳定性。
High-entropy ceramic with high hardness and oxidation resistance and preparation method thereof
一种高硬度、抗氧化的高熵陶瓷及其制备方法
YIN FUCHENG (author) / LIU QIAOYU (author) / YIN BINGBING (author) / WANG XINMING (author)
2023-07-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2016
| European Patent Office | 2024
Ceramic glaze with good wear resistance and high hardness and preparation method thereof
| European Patent Office | 2020