ZTA ceramic crucible or we called Thermansys Zirconia Toughened Alumina (ZTA) crucibles are essentially much similar product with our Alumina crucibles. The differences lie to the addition of a specific blend of Zirconia Silicate to the main Alumina matrix before sintering.
The main advantages are additional strength and toughness over Alumina for temperatures below 1500 C. It can improve thermal shock resistance. ZTA crucibles shows better surface finish than Alumina. ZTA crucibles are offered without significant additional cost compared to pure Alumina crucibles. The prices for ZTA crucibles are much lower.