A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cutting edge zirconium oxide surface treatment method
The invention discloses a blade zirconia surface treatment method, and belongs to the technical field of ceramic cutters. The blade zirconium oxide surface treatment method comprises the following steps: taking superfine zirconium oxide powder as a raw material, and adding acrylamide, N, N-methylene bisacrylamide, ammonium persulfate, tetramethylethylenediamine, a dispersing agent and ammonia water to prepare a zirconium oxide-based ceramic suspension with the solid phase content of 52%. In order to solve the problem that an existing ceramic knife is broken or fractured once overexertion occurs in the using process, two surfaces of a crack are connected through a bridging unit, closing stress is generated between two interfaces, and the upper surface and the lower surface of an expansion crack are nailed by complete particles within a certain distance behind the tip of the crack; and the stress intensity factor of the tip of the crack is reduced by preventing the crack from opening, so that the plastic deformation of the particle in the toughening and crack expansion process is realized, the driving force of macroscopic crack expansion is consumed, and the surface toughness and strength of the ceramic blade can be enhanced.
本发明公开了一种刀刃氧化锆表面处理方法，属于陶瓷刀具技术领域。刀刃氧化锆表面处理方法，包括如下步骤，以超细氧化锆粉为原料，加入丙烯酰胺、N，N～亚甲基双丙烯酰胺、过硫酸铵、四甲基乙二胺、分散剂及氨水制备出了固相含量52％的氧化锆基陶瓷悬浮体。为解决现有的陶瓷刀在使用的过程中一旦用力过度就会出现崩刃或者断裂的问题，依靠桥联单元连接裂纹的两个表面并在两个界面之间产生闭合应力，扩展裂纹的上下表面在裂纹尖端后方一定的距离内被完整的颗粒所钉住，颗粒通过阻止裂纹的张开而减小了裂纹尖端的应力强度因子，从而实现增韧，裂纹扩展过程中导致颗粒的塑性变形，消耗了宏观裂纹扩展的驱动力，这样可以增强陶瓷刀刃的表面韧性以及强度。
Cutting edge zirconium oxide surface treatment method
The invention discloses a blade zirconia surface treatment method, and belongs to the technical field of ceramic cutters. The blade zirconium oxide surface treatment method comprises the following steps: taking superfine zirconium oxide powder as a raw material, and adding acrylamide, N, N-methylene bisacrylamide, ammonium persulfate, tetramethylethylenediamine, a dispersing agent and ammonia water to prepare a zirconium oxide-based ceramic suspension with the solid phase content of 52%. In order to solve the problem that an existing ceramic knife is broken or fractured once overexertion occurs in the using process, two surfaces of a crack are connected through a bridging unit, closing stress is generated between two interfaces, and the upper surface and the lower surface of an expansion crack are nailed by complete particles within a certain distance behind the tip of the crack; and the stress intensity factor of the tip of the crack is reduced by preventing the crack from opening, so that the plastic deformation of the particle in the toughening and crack expansion process is realized, the driving force of macroscopic crack expansion is consumed, and the surface toughness and strength of the ceramic blade can be enhanced.
本发明公开了一种刀刃氧化锆表面处理方法，属于陶瓷刀具技术领域。刀刃氧化锆表面处理方法，包括如下步骤，以超细氧化锆粉为原料，加入丙烯酰胺、N，N～亚甲基双丙烯酰胺、过硫酸铵、四甲基乙二胺、分散剂及氨水制备出了固相含量52％的氧化锆基陶瓷悬浮体。为解决现有的陶瓷刀在使用的过程中一旦用力过度就会出现崩刃或者断裂的问题，依靠桥联单元连接裂纹的两个表面并在两个界面之间产生闭合应力，扩展裂纹的上下表面在裂纹尖端后方一定的距离内被完整的颗粒所钉住，颗粒通过阻止裂纹的张开而减小了裂纹尖端的应力强度因子，从而实现增韧，裂纹扩展过程中导致颗粒的塑性变形，消耗了宏观裂纹扩展的驱动力，这样可以增强陶瓷刀刃的表面韧性以及强度。
Cutting edge zirconium oxide surface treatment method
刀刃氧化锆表面处理方法
JIN SHAOLONG (author) / BAI XUDONG (author)
2025-01-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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