Fabrication and Performance of Brazed Diamond Abrasive Tools

Dear Colleagues,

In fulfilling any practical application, most brittle solids are needed to be machined into components of a high degree of dimensional accuracy with as little subsurface damage as possible, in order to avoid catastrophic loss of functionality. Diamond abrasive tools are essential tools for machining and finishing of brittle materials such as natural stones, ceramics, and hard metals. The development of diamond abrasive tools is, therefore, of fundamental importance for the advance of manufacturing technologies that play a key role in modern society.

Active brazing has been recognized as a promising fabrication method for diamond abrasive tools, because of the superior bonding strength formed through the interface reaction between bonding metals and diamond grits. However, the excessive formation of interfacial carbides together with possible graphitization of diamond is also responsible for the degradation of mechanical integrity of diamond abrasives, and hence the poor performance of brazed diamond abrasive tools. Recently, attempts to reveal the bonding and wetting mechanisms of synthetic diamond abrasive at relatively low temperatures have provided a possibility to develop novel diamond grinding and cutting tools that are conventionally fabricated by sintering or electroplateing techqniues, i.e. dicing blades or diamond saws with fine grits size.

This Special Issue aims to explore the latest progress with a focus on (1) bonding mechanisms of brazed synthetic diamond; (2) development of brazing methodologies and instruments for diamond abrasive tools; (3) evaluation of grinding performance of brazed diamond abrasive tools, especially the wear mechanisms of brazed diamond grits. Last but not least, the fabrication and characterization of diamond metal matrix composites for thermal management of modern electronic devices is also welcomed.

Prof. Dr. DeKui Mu
Prof. Dr. Guoqin Huang
Guest Editors

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• diamond abrasive tool
• brazing
• sintering
• grinding
• brittle solids
• interface reaction
• microstructures
• mechanical properties
• subsurface damage
• diamond metal matrix composites