As the prosthetic application of natural mineral substituted for chemical reagent, composites and a glass-ceramics containing hydroxyapatite isolated from tuna bone were prepared by solid state reaction. On x-ray examinations, the major phases of composites were identified as pseudowollastonite(α-CaSiO3) and β-tricalcium phosphate(β-TCP) and the phase of a glass-ceramics was observed as β-TCP and fluoroapatite caused by CaF2, respectively. SEM images depict that the microstructures of grain at the composites were a function of temperature. The measured strength of a glass-ceramics prepared at 900℃ for 4 hr in air was 90 MPa as a 4-point bending method and this value was similar to the cortical bone, as 50∼150 MPa but it was lower than its maximum strength.

바이오 세락믹스와 같은 의료용재료의 출발물질에 사용되는 화학시약을 대신하여 참치 뼈로부터 추출한 천연 hydroxyapatite를 이용하여 세라믹 복합체와 glass-ceramics 등을 제조하였다. 복합체의 경우 pseudowollastonite(α-CaSiO3)와 β-tricalcium phosphate(β-TCP)가 주 결정상으로, 그리고 glass-ceramics 는 pseudowollastonite, β-TCP 및 핵형성제로 포함시킨 CaF2에 의한 fluoroapatite상이 각각 관찰되었다. 복합체의 미세구조 변화 양상은 열처리 온도의 함수로 결정상의 입자 크기가 증가하는 일반적인 미세조진 구조의 형태를 나타내었고, 900℃로 4시간 동안 대기 상에서 제조한 glassceramics의 강도는 90 MPa로 나타났다