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Alumina-silicon carbide-carbon baking-free refractory material reinforced by aluminum silicide carbide whisker as well as preparation method and application of alumina-silicon carbide-carbon baking-free refractory material
The invention provides an aluminum silicide whisker reinforced aluminum oxide-silicon carbide-carbon baking-free refractory material as well as a preparation method and application thereof, and belongs to the technical field of refractory materials. The composition and the use amount of each component of the baking-free refractory material are controlled, the silicon powder, the aluminum powder and the graphite powder are used as raw materials of the Al4SiC4 crystal whiskers, the Al4SiC4 crystal whiskers grow in situ in the refractory material in the high-temperature use process under the action of the catalyst, and compared with one-dimensional granular Al4SiC4, the Al4SiC4 crystal whiskers have a two-dimensional linear structure, the surface area is larger, and the service life of the Al4SiC4 crystal whiskers is prolonged. The Al4SiC4 crystal whiskers are added into the baking-free refractory material, so that the interior of the baking-free refractory material is better wrapped, the Al4SiC4 crystal whiskers are preferentially oxidized during oxidation, the protection effect on other easily oxidized substances in the baking-free refractory material is better in the oxidation process, and the Al4SiC4 crystal whiskers also have the characteristics of the crystal whiskers, so that the oxidation resistance of the baking-free refractory material can be improved, and the mechanical property of the baking-free refractory material can also be enhanced.
本发明提供了一种碳硅化铝晶须增强的氧化铝‑碳化硅‑碳免烧耐火材料及其制备方法和应用，属于耐火材料技术领域。本发明控制免烧耐火材料的组成和各组分用量，硅粉、铝粉和石墨粉作为Al4SiC4晶须的原料，在催化剂的作用下，在高温使用过程中，Al4SiC4晶须在耐火材料中原位生长，与一维颗粒状Al4SiC4相比，Al4SiC4晶须具有二维线状结构，表面积更大，对免烧耐火材料内部的包裹性更好，氧化时优先被氧化，在氧化过程中对免烧耐火材料内部其他易被氧化的物质的保护效果更好，Al4SiC4晶须还具备晶须本身的特点，不仅能够提高免烧耐火材料的抗氧化性，还可以增强免烧耐火材料的力学性能。
Alumina-silicon carbide-carbon baking-free refractory material reinforced by aluminum silicide carbide whisker as well as preparation method and application of alumina-silicon carbide-carbon baking-free refractory material
The invention provides an aluminum silicide whisker reinforced aluminum oxide-silicon carbide-carbon baking-free refractory material as well as a preparation method and application thereof, and belongs to the technical field of refractory materials. The composition and the use amount of each component of the baking-free refractory material are controlled, the silicon powder, the aluminum powder and the graphite powder are used as raw materials of the Al4SiC4 crystal whiskers, the Al4SiC4 crystal whiskers grow in situ in the refractory material in the high-temperature use process under the action of the catalyst, and compared with one-dimensional granular Al4SiC4, the Al4SiC4 crystal whiskers have a two-dimensional linear structure, the surface area is larger, and the service life of the Al4SiC4 crystal whiskers is prolonged. The Al4SiC4 crystal whiskers are added into the baking-free refractory material, so that the interior of the baking-free refractory material is better wrapped, the Al4SiC4 crystal whiskers are preferentially oxidized during oxidation, the protection effect on other easily oxidized substances in the baking-free refractory material is better in the oxidation process, and the Al4SiC4 crystal whiskers also have the characteristics of the crystal whiskers, so that the oxidation resistance of the baking-free refractory material can be improved, and the mechanical property of the baking-free refractory material can also be enhanced.
本发明提供了一种碳硅化铝晶须增强的氧化铝‑碳化硅‑碳免烧耐火材料及其制备方法和应用，属于耐火材料技术领域。本发明控制免烧耐火材料的组成和各组分用量，硅粉、铝粉和石墨粉作为Al4SiC4晶须的原料，在催化剂的作用下，在高温使用过程中，Al4SiC4晶须在耐火材料中原位生长，与一维颗粒状Al4SiC4相比，Al4SiC4晶须具有二维线状结构，表面积更大，对免烧耐火材料内部的包裹性更好，氧化时优先被氧化，在氧化过程中对免烧耐火材料内部其他易被氧化的物质的保护效果更好，Al4SiC4晶须还具备晶须本身的特点，不仅能够提高免烧耐火材料的抗氧化性，还可以增强免烧耐火材料的力学性能。
Alumina-silicon carbide-carbon baking-free refractory material reinforced by aluminum silicide carbide whisker as well as preparation method and application of alumina-silicon carbide-carbon baking-free refractory material
一种碳硅化铝晶须增强的氧化铝-碳化硅-碳免烧耐火材料及其制备方法和应用
ZHEN QIANG (Autor:in) / LI WENHAO (Autor:in) / LI RONG (Autor:in)
05.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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