Creation of Hydroxyapatite Film on Human Enamel Utilized Powder Jet Deposition
Creation of Hydroxyapatite Film on Human Enamel Utilized Powder Jet Deposition
复制标题
利用粉末喷射沉积在人牙釉质上形成羟基磷灰石薄膜
DOI：
10.1299/kikaic.79.4634
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. Kuriyagawa
中科院分区：
文献类型：
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作者：
Keiju Sato;Chihiro Nishikawa;Takayuki Hagiwara;K. Shimada;Wataru Horiuchi;K. Matsumura;R. Akatsuka;K. Sasaki;Tsutomu Ishizaki;T. Arakawa;K. Ohta;M. Mizutani;T. Kuriyagawa
粉末喷射沉积（PJD）是一种使用加速粒子的涂层工艺。在这个过程中，加速的陶瓷颗粒撞击在基底上，破碎的颗粒部分粘附在基底上。本研究采用光滑粒子流体动力学（SPH）方法研究了羟基磷灰石颗粒直径（dg）和速度（vg）对PJD作用于人牙釉质过程的影响。通过SPH模拟明确了优化条件，并在此条件下进行了PJD实验。结果表明，当平均粒径dg = 4.65 μm，平均粒子速度vg = 250 m/s时，牙釉质表面被部分去除;当dg = 4.65 μm，平均粒子速度vg = 200 m/s，或dg = 3.18 μm，平均粒子速度vg = 200，250 m/s时，牙釉质表面形成涂层。
Powder jet deposition (PJD) is a coating process using accelerated particles. In this process, accelerated ceramic particles are impacted on a substrate, and fractured particles partly adhere to it. We have proposed to apply this process to dental treatment. In this study, the effects of the diameter (dg) and the velocity (vg) of a hydroxyapatite particle on PJD process to human enamel were investigated by using a smoothed particle hydrodynamics (SPH) method. Optimized conditions were clarified through the SPH simulations, and PJD experiments were conducted under the obtained conditions. It was found that the surface of the enamel substrate was partly removed when the mean particle diameter dg = 4.65 μm and the mean particle velocity vg = 250 m/s, and coated layers were formed on the human enamel substrates when dg = 4.65 μm and vg = 200 m/s, or dg = 3.18 μm and vg = 200, 250 m/s.