On April 8, 1982, while on sabbatical at the U.S. National Bureau of Standards in Washington, D.C., Shechtman discovered the icosahedral phase, which opened the new field of quasiperiodic crystals.
Pada 8 April 1982, ketika sedang beristirahat di U.S. National Bureau of Standards di Washington, D.C., Shechtman menemukan fase ikosahedral, yang membuka bidang baru dalam kristal kuasiperiodik.