Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of high-performance polycrystalline diamond
The invention belongs to the technical field of preparation of diamond composite materials, and particularly relates to a preparation process of high-performance polycrystalline diamond. The preparation process comprises the working procedures of purification treatment, material mixing, ball milling, pressing, sintering and the like. Through formula optimization and process adjustment, the diamond micro-powder with different particle sizes is adopted, and the surface of the diamond is etched through a molten salt method, so that on one hand, the roughness of the surface of the diamond is increased, on the other hand, small-particle-size diamonds can be filled in gaps of large-particle diamonds, the contact area between the diamond particles is increased, and the service life of the diamond is prolonged. In the preparation process, a new derivative can be obtained in the bonding process of the diamond micro-powder, boron carbide and titanium powder, the thermal stability and wear resistance of the polycrystalline diamond can be further promoted, and the problems that traditional polycrystalline diamond is poor in thermal stability and insufficient in toughness are solved.
本发明属于金刚石复合材料制备技术领域，具体涉及一种高性能聚晶金刚石的制备工艺。所述制备工艺，包括净化处理、混料、球磨、压制、烧结等工序。本发明通过配方优化和工艺调整，采用不同粒径的金刚石微粉，通过熔盐法对金刚石表面进行刻蚀，一方面增加了金刚石表面的粗糙度，另一方面，小粒径的金刚石可以填充于大颗粒金刚石空隙中，提高了金刚石颗粒之间的接触面积，制备过程中金刚石微粉、碳化硼与钛粉在结合过程中会获得新的衍生物，可以进一步促进聚晶金刚石的热稳定性和耐磨性，弥补了传统聚晶金刚石热稳定性差、韧性不足的问题。
Preparation process of high-performance polycrystalline diamond
The invention belongs to the technical field of preparation of diamond composite materials, and particularly relates to a preparation process of high-performance polycrystalline diamond. The preparation process comprises the working procedures of purification treatment, material mixing, ball milling, pressing, sintering and the like. Through formula optimization and process adjustment, the diamond micro-powder with different particle sizes is adopted, and the surface of the diamond is etched through a molten salt method, so that on one hand, the roughness of the surface of the diamond is increased, on the other hand, small-particle-size diamonds can be filled in gaps of large-particle diamonds, the contact area between the diamond particles is increased, and the service life of the diamond is prolonged. In the preparation process, a new derivative can be obtained in the bonding process of the diamond micro-powder, boron carbide and titanium powder, the thermal stability and wear resistance of the polycrystalline diamond can be further promoted, and the problems that traditional polycrystalline diamond is poor in thermal stability and insufficient in toughness are solved.
本发明属于金刚石复合材料制备技术领域，具体涉及一种高性能聚晶金刚石的制备工艺。所述制备工艺，包括净化处理、混料、球磨、压制、烧结等工序。本发明通过配方优化和工艺调整，采用不同粒径的金刚石微粉，通过熔盐法对金刚石表面进行刻蚀，一方面增加了金刚石表面的粗糙度，另一方面，小粒径的金刚石可以填充于大颗粒金刚石空隙中，提高了金刚石颗粒之间的接触面积，制备过程中金刚石微粉、碳化硼与钛粉在结合过程中会获得新的衍生物，可以进一步促进聚晶金刚石的热稳定性和耐磨性，弥补了传统聚晶金刚石热稳定性差、韧性不足的问题。
Preparation process of high-performance polycrystalline diamond
一种高性能聚晶金刚石的制备工艺
HAN DANHUI (Autor:in) / PENG CHONG (Autor:in) / LIU JUNLONG (Autor:in) / ZHOU GUANGTONG (Autor:in)
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2020