منابع مشابه
Effect of hydrofluoric acid concentration and etching time on the surface roughness of CAD/CAM ceramics
Introduction: Dental ceramics are considered as materials that can restore the appearance of natural teeth. Etching the inner surface of a ceramic restoration with hydrofluoric acid (HF) followed by using a silane coupling agent is a well-known and recommended method to increase the bond strength. The aim of etching on ceramic structure is to enhance the surface roughness (Ra) and energy and to...
متن کاملChemical etching of nitinol stents.
At present the main cause of death originates from cardiovascular diseases. Primarily the most frequent cause is vessel closing thus resulting in tissue damage. The stent can help to avoid this. It expands the narrowed vessel section and allows free blood flow. The good surface quality of stents is important. It also must have adequate mechanical characteristics or else it can be damaged which ...
متن کاملWet-Chemical Etching and Cleaning of Silicon
A Introduction Research and manufacturing related to silicon devices, circuits, and systems often relies on the wet-chemical etching of silicon wafers. The dissolution of silicon using liquid solutions is needed for deep etching and micromachining, shaping, and cleaning. Also, wet-chemistries are often used for defect delineation in single crystal silicon materials. In this paper, a review of t...
متن کاملChemical etching characteristics for cellulose nitrate
Cellulose nitrate films (commercially available as LR 115 films were irradiated systematically with alpha particles in the energy range from 1 to 5 MeV with incident angles from 30◦ to 90◦. After etching to remove a thickness of 6.5 m, the lengths of the major and minor axes of the alpha-particle track openings in the films were measured with an image analyser under an optical magnification of ...
متن کاملOptimization of Chemical Texturing of Silicon Wafers Using Different Concentrations of Sodium Hydroxide in Etching Solution
In this paper, the morphology of chemically etched silicon with various concentration is reported. The surface of Silicon (100) has pyramidal structures which can be used for anti-reflection applications in solar cells. Pyramidal structures can capture incident sun light therefore can enhance the efficiency of silicon solar cells. The structure of silicon pyramid was studied using scanni...
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ژورنال
عنوان ژورنال: Jitsumu Hyomen Gijutsu
سال: 1988
ISSN: 1884-3417,0368-2358
DOI: 10.4139/sfj1970.35.559