Gel-casting of β-TCP using epoxy resin as a gelling agent
Gel-casting of β-TCP using epoxy resin as a gelling agent
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DOI：
10.1016/j.jeurceramsoc.2008.04.028
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发表时间：
2008-11-01
影响因子：
5.7
通讯作者：
Lin, Qingling
中科院分区：
文献类型：
--
作者：
Chen, Biqin;Jiang, Dongliang;Lin, Qingling
将水溶性环氧树脂与聚胺硬化剂结合用于β-磷酸三钙（TCP）陶瓷的凝胶注模。研究了分散剂和固体负载量对 β-TCP 浆料流变行为的影响。当浆料浓度从40体积%增加到55体积%时，干燥件的抗压强度从36.4+/-2.1MPa增加到65.9+/-2.3MPa，弯曲强度从30.4+/-1.4MPa增加到36.4+/-1.7MPa。烧结件的机械性能令人满意。具有抗压强度。弯曲强度、弹性模量和断裂韧性分别为319+/-18MPa、97.4+/-6.0MPa、90+/-2GPa和1.00+/-0.07MPa·m(1/2)。生坯和烧结陶瓷的结构均匀，未观察到大的缺陷。 (c) 2008 Elsevier Ltd. 保留所有权利。
A water-soluble epoxy resin combined with a polyamine hardener is applied for gel-casting of beta-tricalcium phosphate (TCP) ceramics. The influence of dispersant and the solids loading on the rheological behavior of beta-TCP slurries are investigated. When the concentration of the slurries increases from 40 vol.% to 55 vol.%, the compressive strength of the dried pieces increases in the range from 36.4 +/- 2.1 MPa to 65.9 +/- 2.3 MPa, and flexural strength increases from 30.4 +/- 1.4 MPa to 36.4 +/- 1.7 MPa. The mechanical properties of the sintered pieces are satisfying. with compressive strength. flexural strength, elasticity modulus and the fracture toughness 319 +/- 18 MPa, 97.4 +/- 6.0 MPa, 90 +/- 2 GPa and 1.00 +/- 0.07 MPa m(1/2), respectively. The structures of green body and sintered ceramics are homogeneous, and large defects are not observed. (c) 2008 Elsevier Ltd. All rights reserved.