DESIGNING OF FREEZE DRYING APPARATUS BY SELF-ORIGINATEDDEVICES

摘要

A lyophilizer designed and manufactured in our laboratory by Self-dependant on thernequipments designed in our country. It contains three parts, cooling system, vacuum system andrnseparation chamber. After that, it examined by preparing high temperature superconductorrncompound like Tl2Ba2Ca2Cu3O10 by Freeze-Drying Method (FDM) in order to improve thernphysical properties of that compounds. It was found that the critical temperature was aboutrn(Tc=128 K).