Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rare earth boron-carbon ceramic material and preparation method thereof
The invention discloses a rare earth boron-carbon ceramic material and a preparation method thereof, and belongs to the technical field of ceramic materials. The invention relates to a rare earth boron carbon ceramic material. The chemical formula of the rare earth boron carbon ceramic material is (RE1x1RE2x2... REnxn)B2C2. Wherein n is larger than or equal to 3 and smaller than or equal to 17, x1+x2+...+xn= 1, and RE1, RE2,..., REn are different rare earth elements. According to the preparation method, 3-17 different rare earth elements are used for replacing one rare earth element in the ternary rare earth boron-carbon ceramic material, so that the physical and mechanical properties of the rare earth boron-carbon ceramic material can be improved. The preparation method comprises the following steps: heating at least three mixed powdery rare earth oxides, powdery boron oxide and powdery graphite to 1500-2500 DEG C under the protection of inert gas, and keeping the temperature for morethan or equal to 10 minutes. The preparation method is simple and convenient, and the prepared ceramic material powder is relatively high in purity and relatively low in raw material cost.
一种稀土硼碳陶瓷材料及其制备方法，属于陶瓷材料技术领域。一种稀土硼碳陶瓷材料，其化学式为：(RE1x1RE2x2…REnxn)B2C2。其中3≤n≤17，x1+x2+…+xn＝1，RE1、RE2、…、REn均为不同的稀土元素。本申请以3～17种不同的稀土元素替代三元稀土硼碳陶瓷材料中的一种稀土元素，能够使稀土硼碳陶瓷材料的物理和机械性能提高。制备方法包括：在惰性气体保护下将混合的粉末状的至少三种稀土氧化物、粉末状的氧化硼和粉末状的石墨升温至1500～2500℃，保温时间≥10min。制备方法简便，制得的陶瓷材料粉体纯度较高，且原料成本较低。
Rare earth boron-carbon ceramic material and preparation method thereof
The invention discloses a rare earth boron-carbon ceramic material and a preparation method thereof, and belongs to the technical field of ceramic materials. The invention relates to a rare earth boron carbon ceramic material. The chemical formula of the rare earth boron carbon ceramic material is (RE1x1RE2x2... REnxn)B2C2. Wherein n is larger than or equal to 3 and smaller than or equal to 17, x1+x2+...+xn= 1, and RE1, RE2,..., REn are different rare earth elements. According to the preparation method, 3-17 different rare earth elements are used for replacing one rare earth element in the ternary rare earth boron-carbon ceramic material, so that the physical and mechanical properties of the rare earth boron-carbon ceramic material can be improved. The preparation method comprises the following steps: heating at least three mixed powdery rare earth oxides, powdery boron oxide and powdery graphite to 1500-2500 DEG C under the protection of inert gas, and keeping the temperature for morethan or equal to 10 minutes. The preparation method is simple and convenient, and the prepared ceramic material powder is relatively high in purity and relatively low in raw material cost.
一种稀土硼碳陶瓷材料及其制备方法，属于陶瓷材料技术领域。一种稀土硼碳陶瓷材料，其化学式为：(RE1x1RE2x2…REnxn)B2C2。其中3≤n≤17，x1+x2+…+xn＝1，RE1、RE2、…、REn均为不同的稀土元素。本申请以3～17种不同的稀土元素替代三元稀土硼碳陶瓷材料中的一种稀土元素，能够使稀土硼碳陶瓷材料的物理和机械性能提高。制备方法包括：在惰性气体保护下将混合的粉末状的至少三种稀土氧化物、粉末状的氧化硼和粉末状的石墨升温至1500～2500℃，保温时间≥10min。制备方法简便，制得的陶瓷材料粉体纯度较高，且原料成本较低。
Rare earth boron-carbon ceramic material and preparation method thereof
一种稀土硼碳陶瓷材料及其制备方法
ZHAO GUORUI (Autor:in) / FU CHAO (Autor:in) / WANG ENGE (Autor:in) / ZHAN DOU (Autor:in) / KONG FANLEI (Autor:in) / REN ZHIHENG (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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