TY - JOUR AU - P O'Hare AU - I. Tomaszkiewicz AU - C. Beck AU - H. Seifert C2 - Journal of Chemical Thermodynamics DA - 1999-12-01 LA - en M1 - 31 PB - Journal of Chemical Thermodynamics PY - 1999 TI - Thermodynamics of Silicon Nitride. I. Standard Molar Enthalpy of Formation δfHm0 at the Temperature 298.15 K of α-Si3N4 and ε-Si3N4 ER -