Top 5 Low-Thermal-Expansion Glasses — Comparison, Properties & Material Selection Guide
Engineers and buyers in fields such as precision optics, semiconductors, and laser systems often require materials with extremely low thermal expansion coefficients for their equipment components. Low-expansion glass can minimize thermal deformation and maintain dimensional stability. Today, I’ll compare the five most commonly used low-expansion materials—Zerodur, ULE, ClearCeram (glass-ceramic), BF33 (Borofloat 33), and Fused Silica—to