In a recent experiment, engineers tested a compelling question: can a high-pressure water jet cut through diamond, the hardest natural material on Earth? Water jets are commonly used to cut metals, tiles, and stones by blasting a thin stream of water at extremely high pressures. However, diamond's exceptional hardness poses a unique challenge.
The experiment explored how water jets work—using high pressure and impact to erode materials. For harder substances, abrasive water jets (which add garnet or other particles) are often more effective than pure water. The team examined whether diamond would suffer surface damage, micro-cracks, or actual separation.
The results offer insights into materials science and industrial cutting. While water jets can damage diamond's surface, cutting through a diamond completely requires more than just pressure—it depends on the specific cutting parameters and whether abrasives are used.
This test underscores the limits and capabilities of water jet technology when facing the hardest known material.