I was using metal boats like Tungsten/Tantalum/Molybdenum for evaporating gold or any organic/inorganic materials . I checked online Ceramic evaporation boats are also available in market. any one have experience using these boats for evaporating organic material or inorganic materials? up-to how much maximum melting temp we can evaporate with ceramic boats? Like TiO2 have very high melting temp.