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Densification Behavior of Calcium Phosphates on Spark Plasma Sintering

机译:火花等离子体烧结中磷酸钙的致密化行为

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摘要

Ceramics of hydroxyapatite (Ca_(10)(PO_4)_6(OH)_2: HA) and β-tricalcium phosphate (β-Ca_3(PO_4)_2: β-TCP), were prepared by spark plasma sintering (SPS) at the temperatures from 800℃ to 1000℃ for 10 min with a heating rate of 25℃·min~(-1). The HA ceramics prepared at 900℃ and 1000℃ showed transparency. On the other hands, transparent β-TCP ceramics was obtained by SPS at 1000℃. In analysis of the densification behavior during sintering of HA and β-TCP by SPS, dominant sintering mechanism was plastic flow in the early stage of densification. Transparent ceramics should be the most suitable materilas to investigate the interface between human cells and ceramics.
机译:在此温度下通过火花等离子体烧结(SPS)制备了羟基磷灰石(Ca_(10)(PO_4)_6(OH)_2:HA)和β-磷酸三钙(β-Ca_3(PO_4)_2:β-TCP)的陶瓷从800℃到1000℃10分钟,升温速率为25℃·min〜(-1)。在900℃和1000℃下制备的HA陶瓷具有透明性。另一方面,在1000℃下通过SPS获得了透明的β-TCP陶瓷。在SPS烧结HA和β-TCP过程中的致密化行为分析中,致密化的主要机理是致密化初期的塑性流动。透明陶瓷应该是研究人体细胞与陶瓷之间界面的最合适材料。

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