Processing HIP-zirconia with ultra-short laser pulses

被引：5

作者：

Werelius, K ^{[1
]}

Weigl, P ^{[1
]}

Lubatschowski, H ^{[1
]}

机构：

[1] Univ Frankfurt, Dept Prosthodon, D-60596 Frankfurt, Germany

来源：

FOURTH INTERNATIONAL SYMPOSIUM ON LASER PRECISION MICROFABRICATION | 2003年 / 5063卷

关键词：

Zirconia; ultra-short laser pulses; material damage; pulse duration;

D O I：

10.1117/12.540505

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creating individual complex three dimensional structures in HIP-zirconia by conventional mechanical machining, e.g. milling, is time consuming and subject to significant loss in bending strength due to microcracking during the milling process. Utilizing ultra-short laser pulses, individual complex three dimensional microstructures can be created very precisely without significant damage to the structure. This advantage is used to process HIP-zirconia in order to create dental restorations. To evaluate efficiency and quality, different laser parameters such as pulse duration, pulse energy and ablation strategies were studied. The maximum ablation rate was found at 400 fs.

引用

页码：342 / 345

页数：4

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