Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-toughness nano polycrystalline diamond composite material
The invention discloses a method for preparing a nano polycrystalline diamond composite material by using silicon carbide and graphene as additives, and belongs to the field of inorganic non-metallic materials, the method comprises the following steps: by using nano diamond micro powder, silicon carbide micro powder and graphene as raw materials, carrying out purification treatment on the raw materials, carrying out pre-press molding, assembling a high-pressure element, putting the high-pressure element into ultrahigh-pressure equipment, and carrying out high-pressure sintering to obtain the nano polycrystalline diamond composite material. The nano polycrystalline diamond composite material is prepared under the conditions of 1-4.5 GPa, 600-1300 DEG C, 4-7 GPa and 1300-1650 DEG C by adopting a secondary pressurization mode at high temperature and high pressure, and the nano polycrystalline diamond composite material prepared by the method has the characteristics of high hardness, high wear resistance, high impact strength, high fracture toughness and the like of a traditional diamond material.
本发明公开了一种用碳化硅和石墨烯作为添加剂，纳米聚晶金刚石复合材料制备方法，属于无机非金属材料领域，所述方法以纳米金刚石微粉、碳化硅微粉和石墨烯为原料，对原料进行净化处理，预压成型，组装高压元件，放置于超高压设备中，在1~4.5 GPa，600~1300℃，4 GPa~7 GPa，1300℃~1650℃的条件下采用二次加压的方式进行高温高压制备纳米聚晶金刚石复合材料，利用本发明制备的纳米聚晶金刚石复合材料，既具有传统金刚石材料的高硬度、高耐磨性，又具有高抗冲击强度和断裂韧性等特点。
Preparation method of high-toughness nano polycrystalline diamond composite material
The invention discloses a method for preparing a nano polycrystalline diamond composite material by using silicon carbide and graphene as additives, and belongs to the field of inorganic non-metallic materials, the method comprises the following steps: by using nano diamond micro powder, silicon carbide micro powder and graphene as raw materials, carrying out purification treatment on the raw materials, carrying out pre-press molding, assembling a high-pressure element, putting the high-pressure element into ultrahigh-pressure equipment, and carrying out high-pressure sintering to obtain the nano polycrystalline diamond composite material. The nano polycrystalline diamond composite material is prepared under the conditions of 1-4.5 GPa, 600-1300 DEG C, 4-7 GPa and 1300-1650 DEG C by adopting a secondary pressurization mode at high temperature and high pressure, and the nano polycrystalline diamond composite material prepared by the method has the characteristics of high hardness, high wear resistance, high impact strength, high fracture toughness and the like of a traditional diamond material.
本发明公开了一种用碳化硅和石墨烯作为添加剂，纳米聚晶金刚石复合材料制备方法，属于无机非金属材料领域，所述方法以纳米金刚石微粉、碳化硅微粉和石墨烯为原料，对原料进行净化处理，预压成型，组装高压元件，放置于超高压设备中，在1~4.5 GPa，600~1300℃，4 GPa~7 GPa，1300℃~1650℃的条件下采用二次加压的方式进行高温高压制备纳米聚晶金刚石复合材料，利用本发明制备的纳米聚晶金刚石复合材料，既具有传统金刚石材料的高硬度、高耐磨性，又具有高抗冲击强度和断裂韧性等特点。
Preparation method of high-toughness nano polycrystalline diamond composite material
一种高韧性的纳米聚晶金刚石复合材料制备方法
WANG WEIJIE (Autor:in) / LI ZHENGXIN (Autor:in) / YANG XUEFENG (Autor:in) / HUANG LEIBO (Autor:in) / LIANG LUMIN (Autor:in)
30.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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