A new processing technique for preparing hyroxyapatite (HAp) ceramics
has been developed using the hydrothermal hot-pressing (HHP) method, p
owder mixed dibasic calcium phosphate dihydrate and calcium hydroxide
mixed with a Ca/P ratio of 1.67 was treated at 150 degrees C and 40 MP
a. The HHP method with the selection of the powder enabled the HAp to
be solidified at the low temperature, The resulting HAp ceramics had a
tensile strength of approximately 10 MPa, Furthermore, the HAp cerami
cs possessed a lamellar microstructure and high porosity.