noun
- a solid material composed of many small crystals or grains with different orientations
Usage: materials science; technical
Examples
- The metal sample was a polycrystal with thousands of tiny grains.
- Engineers studied the polycrystal structure to understand its mechanical properties.
- Unlike a single crystal, a polycrystal has grain boundaries between its crystal regions.
- The polycrystal exhibited different strength characteristics than pure single crystals.
- X-ray diffraction revealed the polycrystal’s complex internal structure.
- Most commercial metals are polycrystals rather than perfect single crystals.