New technique for bonding hydroxyapatite ceramics and titanium by the hydrothermal hot-pressing method
New technique for bonding hydroxyapatite ceramics and titanium by the hydrothermal hot-pressing method
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水热热压法羟基磷灰石陶瓷与钛结合新技术
DOI：
10.1016/j.scriptamat.2004.12.011
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发表时间：
2005
影响因子：
6
通讯作者：
T. Hashida
中科院分区：
文献类型：
--
作者：
Takamasa Onoki;K. Hosoi;T. Hashida
采用水热压法制备羟基磷灰石(HA:Ca10(PO4)6(OH)2)，在温度低至150℃的条件下，无需对钛进行特殊表面处理，同时实现了羟基磷灰石(HA:Ca10（PO4)6(OH)2）的凝固和与钛（Ti）的结合。以二水磷酸氢钙和氢氧化钙的混合物为起始粉末材料，对羟基磷灰石进行固化。进行三点弯曲试验，以获得HA/Ti界面以及仅HA陶瓷的断裂韧性估计。断裂韧性试验表明，预裂尖端诱导裂纹偏离HA/Ti界面，向HA内扩展；在结合的HA/Ti试样上测定的断裂韧性与仅HA陶瓷的断裂韧性接近（~ 0.30 mpam /2）。
Solidification of hydroxyapatite (HA:Ca10(PO4)6(OH)2) and its bonding with titanium (Ti) was achieved simultaneously by using the hydrothermal hot-pressing method at temperatures as low as 150°C with no special surface treatment of Ti. A mixture of calcium hydrogen phosphate dihydrate and calcium hydroxide was used as the starting powder material for solidifying HA. Three-point bending tests were conducted to obtain an estimate of the fracture toughness for the HA/Ti interface as well as for the HA ceramics only. The fracture toughness tests showed that the induced crack from the pre-crack tip deviated from the HA/Ti interface and propagated into the HA. The fracture toughness determined on the bonded HA/Ti specimen was close to that of the HA ceramics only (∼0.30MPam1/2).
DOI：
10.1111/j.1151-2916.1991.tb07132.x
发表时间：
1991-07-01
影响因子：
3.9
作者：
HENCH, LL
通讯作者：
HENCH, LL