کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8012416 1517159 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Femtosecond laser-induced periodic surface microstructure on dental zirconia ceramic
ترجمه فارسی عنوان
ریز ساختار سطحی دوره ای ناشی از لیتوم فموتسکون بر روی سرامیک زیرکونیا دندان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
The inert and high-strength of zirconia ceramic make it a big challenge to develop simple and reliable methods for increasing surface roughness with controlled morphologies. This study investigated the suitability of femtosecond laser for surface modification of zirconia. The laser pulse energies were set at 180 μJ and 90 μJ respectively, with pulse duration of 35 fs, a repetition rate of 2 kHz, and wave length at 800 nm. Scanning electron microscopy observation of well-distributed periodic and cyclic microstructure revealed the effectiveness of femtosecond laser ablation and minimal collateral damage of the surface. Laser scanning confocal microscope analysis showed femtosecond laser ablation increased the surface roughness significantly, and the depth of the microstructure was related to the pulse energy of the femtosecond laser. X-ray diffraction showed that the original predominant tetragonal phase of zirconia was preserved in the crystalline structure induced by femtosecond laser processing. The obtained results suggest that femtosecond laser treatment offers a fast and promising approach to introduce controlled topography at the micrometric and sub-micrometric scale.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 229, 15 October 2018, Pages 74-77
نویسندگان
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