Depth and width of cured lines in photopolymerizable ceramic suspensions
Depth and width of cured lines in photopolymerizable ceramic suspensions
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DOI：
10.1016/j.jeurceramsoc.2013.02.033
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发表时间：
2013-09-01
影响因子：
5.7
通讯作者：
Halloran, John W.
中科院分区：
文献类型：
--
作者：
Gentry, Susan P.;Halloran, John W.
当光聚合陶瓷悬浮液受到照射时，固化区域的特征在于固化宽度和固化深度。固化深度随着能量剂量的增加而呈现半对数行为，正如比尔朗伯吸收所预期的那样，并通过深度灵敏度 (S-d) 和深度临界能量剂量 (E-d) 来描述。还发现过量固化宽度（即超出入射照明宽度的固化宽度）随着能量剂量的对数而增加。这种准比尔朗伯行为可以通过宽度灵敏度 (S-w) 和宽度临界能量剂量 (E-w) 来描述。对于含有二氧化硅、莫来石、氧化铝和锆石粉末的陶瓷悬浮液，证明了半对数剂量依赖性。展宽可以通过展宽深度 (D-b) 来量化，展宽深度是开始发生展宽的固化深度。结果表明，展宽深度随着粉末和单体溶液之间归一化折射率对比的对数而减小。 (C) 2013 Elsevier Ltd. 保留所有权利。
When a photopolymerizable ceramic suspension is illuminated, the cured region is characterized by the cure width and cure depth. The cure depth follows a semilogarithmic behavior with increasing energy dose, as expected for Beer Lambert absorption, and is described by the depth sensitivity (S-d) and depth critical energy dose (E-d). The excess cure width, which is the cured width beyond the incident illumination width, is also found to increase with the logarithm of energy dose. This quasi-Beer Lambert behavior can be described by a width sensitivity (S-w) and width critical energy dose (E-w). The semilogarithmic dose dependence is demonstrated for ceramic suspensions containing silica, mullite, alumina, and zircon powders. Broadening can be quantified by the broadening depth (D-b), which is the cure depth at which broadening begins to occur. It is shown that the broadening depth decreases with the logarithm of the normalized refractive index contrast between the powder and monomer solution. (C) 2013 Elsevier Ltd. All rights reserved.