Selecting Diamond as an Engineering Material
A framework for deciding when diamond's benefits justify its cost and processing complexity.
What this topic covers
A framework for deciding when diamond's benefits justify its cost and processing complexity.
Core engineering ideas
Start with the required function: cutting, abrasion, heat spreading, optical transmission, sensing or wear protection.
Then compare workpiece chemistry, temperature, loading, environment, geometry and expected life.
Diamond should be compared with alternatives such as carbide, ceramics, cubic boron nitride, copper, silicon carbide and conventional optical materials.
System tradeoffs
A property table is only a starting point. Crystal quality, orientation, defects, grain structure, surface finish and interfaces determine real component performance.
Quality and verification
Material selection should compare diamond with less costly alternatives under the same temperature, loading, chemistry and lifecycle conditions.
Lifecycle perspective
Synthetic production and recycling expand supply options, while refurbishment can extend the useful life of diamond-bearing tools.