A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for efficiently preparing nano boron carbide powder
The invention discloses a method for efficiently preparing nano boron carbide powder. The preparation method comprises the following steps: uniformly mixing a certain amount of a boron source, a carbon source and water according to a certain ratio, controlling the temperature, performing stirring, enabling the uniformly mixed raw materials of the boron source and the carbon source to be subjected to esterification reaction, controlling a certain time until the reaction is complete, evaporating a solvent at a certain temperature to obtain a gelatinous substance, drying the gelatinous substance to obtain a boron carbide precursor, grinding the precursor into fine powder, placing the fine powder in a high-temperature sintering device with protective gas, carrying out degreasing or dehydration reaction to remove organic matters, and controlling the heat preservation time and temperature to finally obtain the nano boron carbide powder. The method overcomes the defects of low purity, low yield, non-uniform powder granularity, large particle size and the like of existing boron carbide preparation processes, and can effectively reduce the production cost of boron carbide and expand the application value of boron carbide in industry.
本发明公开了一种高效制备纳米碳化硼粉末的方法。将一定量的硼源、碳源和水按照一定比例均匀混合，控制温度进行搅拌，使均匀混合后的硼源和碳源原料发生酯化反应，控制一定时间待反应完全后，在一定温度下蒸干溶剂得到凝胶状物质，将凝胶状物质烘干得到碳化硼前驱体，将前驱体研磨成细粉状后，置于有保护性气体的高温烧结装置中进行脱脂或脱水反应以去除有机物，控制保温时间和温度，最终得到纳米碳化硼粉末。该发明克服了现有碳化硼制备工艺纯度低、产率低、粉末粒度不均、粒径大等缺陷，可有效降低碳化硼的生产成本并拓展其在工业上的应用价值。
Method for efficiently preparing nano boron carbide powder
The invention discloses a method for efficiently preparing nano boron carbide powder. The preparation method comprises the following steps: uniformly mixing a certain amount of a boron source, a carbon source and water according to a certain ratio, controlling the temperature, performing stirring, enabling the uniformly mixed raw materials of the boron source and the carbon source to be subjected to esterification reaction, controlling a certain time until the reaction is complete, evaporating a solvent at a certain temperature to obtain a gelatinous substance, drying the gelatinous substance to obtain a boron carbide precursor, grinding the precursor into fine powder, placing the fine powder in a high-temperature sintering device with protective gas, carrying out degreasing or dehydration reaction to remove organic matters, and controlling the heat preservation time and temperature to finally obtain the nano boron carbide powder. The method overcomes the defects of low purity, low yield, non-uniform powder granularity, large particle size and the like of existing boron carbide preparation processes, and can effectively reduce the production cost of boron carbide and expand the application value of boron carbide in industry.
本发明公开了一种高效制备纳米碳化硼粉末的方法。将一定量的硼源、碳源和水按照一定比例均匀混合，控制温度进行搅拌，使均匀混合后的硼源和碳源原料发生酯化反应，控制一定时间待反应完全后，在一定温度下蒸干溶剂得到凝胶状物质，将凝胶状物质烘干得到碳化硼前驱体，将前驱体研磨成细粉状后，置于有保护性气体的高温烧结装置中进行脱脂或脱水反应以去除有机物，控制保温时间和温度，最终得到纳米碳化硼粉末。该发明克服了现有碳化硼制备工艺纯度低、产率低、粉末粒度不均、粒径大等缺陷，可有效降低碳化硼的生产成本并拓展其在工业上的应用价值。
Method for efficiently preparing nano boron carbide powder
一种高效制备纳米碳化硼粉末的方法
ZENG HEPING (author) / HUANG YANWEI (author) / HU MENGYUN (author) / QIAO WEI (author)
2021-06-08
Patent
Electronic Resource
Chinese
Preparation method of boron carbide-based nano composite powder
| European Patent Office | 2022
Method for preparing boron carbide powder by adopting vertical smelting furnace
| European Patent Office | 2023
Method for preparing boron carbide powder by adopting vertical smelting furnace
| European Patent Office | 2024
Novel process for preparing boron carbide and boron carbide elements
| European Patent Office | 2016