Is an element that he calculated from elasticity coefficients and density. Combining this formula with the envisioned energy of the harmonic oscillator at temperature T displaystyle T Zhang et al. examined at how the surface morphology and melting state of pure Al2O3 ceramics modified because of alterations in laser parameters. https://www.facebook.com/permalink.php?story_fbid=pfbid02TjxYKFBrFmAtbaESsUS3YKokiaBVmH8gecUWhqYjyqncjXRJxHzeco6G5iVTMb84l&id=61562415773754&__cft__[0]=AZWhLyUSU5BropPSH8UQrWzB5WZwouLTE4Kkp-Acyfqtooq4ECD95FbNzV9CS_Hd04cohkylYLLqTNejU5dDDXceNCbPwYvSgPYh13Nh_AMaDOGzSVqEao4yiDY4VZqUjrpFU1Z7YgTf-C58C7nHxA6Jh-1K8LtsQE7_Qb4Xopv8oXfR8VqE52AJJMuYKGgiv9ZQIkfOY6aS53lY7KCpeRr0&__tn__=%2CO%2CP-R