Ceramics consisting of anhydrous calcium sulfate, CaSO4, after firing in the range 800–1000°C have been prepared from calcium sulfate dihydrate (CaSO4⋅2H2O) powder synthesized using aqueous 1 M calcium nitrate (Ca(NO3)2) and ammonium sulfate ((NH4)2SO4) solutions. In the preparation of the powder, the precipitate was washed four times with distilled water to remove ammonium nitrate, NH4NO3, a reaction by-product and, after drying, the powder was disaggregated in acetone. The synthesized CaSO4⋅2H2O powder particles had an elongated prismatic shape both before and after disaggregation. After firing at 800, 900, and 1000°C, the microstructure of the ceramics based on the synthesized CaSO4⋅2H2O powder free of reaction by-products contained sintered elongated polycrystalline structures, confirming that the ceramics inherited the microstructure of the starting powder. Ceramics consisting of anhydrous calcium sulfate, CaSO4, can be recommended for the fabrication of implants for bone tissue defect repair by regenerative medicine methods because they are biocompatible and bioresorbable.

— Ceramics consisting of anhydrous calcium sulfate, CaSO 4 , after firing in the range 800–1000°C have been prepared from calcium sulfate dihydrate (CaSO 4 ⋅2H 2 O) powder synthesized using aqueous 1 M calcium nitrate (Ca(NO 3 ) 2 ) and ammonium sulfate ((NH 4 ) 2 SO 4 ) solutions. In the preparation of the powder, the precipitate was washed four times with distilled water to remove ammonium nitrate, NH 4 NO 3 , a reaction by-product and, after drying, the powder was disaggregated in acetone. The synthesized CaSO 4 ⋅2H 2 O powder particles had an elongated prismatic shape both before and after disaggregation. After firing at 800, 900, and 1000°C, the microstructure of the ceramics based on the synthesized CaSO 4 ⋅2H 2 O powder free of reaction by-products contained sintered elongated polycrystalline structures, confirming that the ceramics inherited the microstructure of the starting powder. Ceramics consisting of anhydrous calcium sulfate, CaSO 4 , can be recommended for the fabrication of implants for bone tissue defect repair by regenerative medicine methods because they are biocompatible and bioresorbable.

Ceramics consisting of anhydrous calcium sulfate, CaSO4, after firing in the range 800-1000 degrees C have been prepared from calcium sulfate dihydrate (CaSO4 center dot 2H(2)O) powder synthesized using aqueous 1 M calcium nitrate (Ca(NO3)(2)) and ammonium sulfate ((NH4)(2)SO4) solutions. In the preparation of the powder, the precipitate was washed four times with distilled water to remove ammonium nitrate, NH4NO3, a reaction by-product and, after drying, the powder was disaggregated in acetone. The synthesized CaSO4 center dot 2H(2)O powder particles had an elongated prismatic shape both before and after disaggregation. After firing at 800, 900, and 1000 degrees C, the microstructure of the ceramics based on the synthesized CaSO4 center dot 2H(2)O powder free of reaction by-products contained sintered elongated polycrystalline structures, confirming that the ceramics inherited the microstructure of the starting powder. Ceramics consisting of anhydrous calcium sulfate, CaSO4, can be recommended for the fabrication of implants for bone tissue defect repair by regenerative medicine methods because they are biocompatible and bioresorbable.