Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing diamond by using silicon carbide smelting furnace core electrode material
The invention provides a method for preparing diamond by using a silicon carbide smelting furnace core electrode material, which comprises the following steps: fully mixing 5-6 parts by mass of graphite powder, 1.5-2.5 parts by mass of 30% ferric citrate aqueous solution, 0.5-1.5 parts by mass of nickel tetracarbonylation and 1.5-2.5 parts by mass of 30% cobalt diformate aqueous solution at room temperature, pressing the mixture into a columnar block under the pressure of not less than 100 MPa, calcining in a vacuum furnace at the temperature of 1100 DEG C for 12 hours to obtain a columnar graphite forming block; and putting the graphite forming block treated by the vacuum furnace into a diamond synthesis block, then putting the synthesis block into a cubic press, and keeping the high temperature and high pressure for not less than 5 minutes to obtain the diamond particles. The ferric citrate aqueous solution with the mass concentration of 30%, the nickel tetracarbonylation and the cobalt diformate aqueous solution with the mass concentration of 30% are uniformly mixed with the graphite powder and can be better uniformly dispersed in the graphite powder, a bonding effect can be achieved in the mixing and forming process, uniform dispersion of the metal catalyst in the graphite is achieved, and the metal catalyst can be more uniformly dispersed in the graphite powder. And the synthesis rate of the diamond can be improved.
本申请提供一种利用碳化硅冶炼炉芯电极料制备金刚石的方法，包括：在室温下，按质量份将5～6份石墨粉、1.5～2.5份质量浓度为30％的柠檬酸铁水溶液、0.5～1.5份四羰化镍、1.5～2.5份质量浓度为30％的二甲酸钴水溶液充分混合后，在不小于100MPa压力下压制成柱状块，并在1100℃真空炉中煅烧12小时后得到柱状石墨成型块；将真空炉处理后的石墨成型块放入金刚石合成块中，再将合成块放入六面顶压机中，高温高压保持时间不小于5分钟，得到金刚石颗粒。本申请中使用质量浓度为30％的柠檬酸铁水溶液、四羰化镍、质量浓度为30％的二甲酸钴水溶液于石墨粉均匀混合，可更好的在石墨粉中进行均匀分散，并且在混合成型过程中，可起到粘结作用，实现金属触媒在石墨中的均匀分散，可提高金刚石的合成速率。
Method for preparing diamond by using silicon carbide smelting furnace core electrode material
The invention provides a method for preparing diamond by using a silicon carbide smelting furnace core electrode material, which comprises the following steps: fully mixing 5-6 parts by mass of graphite powder, 1.5-2.5 parts by mass of 30% ferric citrate aqueous solution, 0.5-1.5 parts by mass of nickel tetracarbonylation and 1.5-2.5 parts by mass of 30% cobalt diformate aqueous solution at room temperature, pressing the mixture into a columnar block under the pressure of not less than 100 MPa, calcining in a vacuum furnace at the temperature of 1100 DEG C for 12 hours to obtain a columnar graphite forming block; and putting the graphite forming block treated by the vacuum furnace into a diamond synthesis block, then putting the synthesis block into a cubic press, and keeping the high temperature and high pressure for not less than 5 minutes to obtain the diamond particles. The ferric citrate aqueous solution with the mass concentration of 30%, the nickel tetracarbonylation and the cobalt diformate aqueous solution with the mass concentration of 30% are uniformly mixed with the graphite powder and can be better uniformly dispersed in the graphite powder, a bonding effect can be achieved in the mixing and forming process, uniform dispersion of the metal catalyst in the graphite is achieved, and the metal catalyst can be more uniformly dispersed in the graphite powder. And the synthesis rate of the diamond can be improved.
本申请提供一种利用碳化硅冶炼炉芯电极料制备金刚石的方法，包括：在室温下，按质量份将5～6份石墨粉、1.5～2.5份质量浓度为30％的柠檬酸铁水溶液、0.5～1.5份四羰化镍、1.5～2.5份质量浓度为30％的二甲酸钴水溶液充分混合后，在不小于100MPa压力下压制成柱状块，并在1100℃真空炉中煅烧12小时后得到柱状石墨成型块；将真空炉处理后的石墨成型块放入金刚石合成块中，再将合成块放入六面顶压机中，高温高压保持时间不小于5分钟，得到金刚石颗粒。本申请中使用质量浓度为30％的柠檬酸铁水溶液、四羰化镍、质量浓度为30％的二甲酸钴水溶液于石墨粉均匀混合，可更好的在石墨粉中进行均匀分散，并且在混合成型过程中，可起到粘结作用，实现金属触媒在石墨中的均匀分散，可提高金刚石的合成速率。
Method for preparing diamond by using silicon carbide smelting furnace core electrode material
一种利用碳化硅冶炼炉芯电极料制备金刚石的方法
XIA KAIZHAN (Autor:in) / HU FENGWEI (Autor:in) / LI JIFENG (Autor:in) / LI XIAOTIAN (Autor:in) / WANG CHENYANG (Autor:in) / HUANG HASAN (Autor:in) / ZHU HUIWEI (Autor:in) / YANG HAOZHEN (Autor:in) / CHEN MO (Autor:in) / LI HAIJUN (Autor:in)
10.05.2024
Patent
Elektronische Ressource
Chinesisch
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