Experimental solid particle erosion of silicon nitride: Optical investigation
| Autor: | Mamidala Ramulu, Ben Pin Hu, Abdullah F. Alajmi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Shadow moire Materials science Process Chemistry and Technology Abrasive 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Silicon nitride 0103 physical sciences Materials Chemistry Ceramics and Composites Silicon carbide Solid particle erosion Erosion Profilometer Composite material 0210 nano-technology High heat |
| Zdroj: | Ceramics International. 47:2743-2750 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.09.127 |
| Popis: | An experimental solid particle erosion study was conducted to investigate the erosion of silicon nitride at different angles of attack using optical techniques. During the erosion process, it has been noticed that when silicon carbide abrasive particles came into contact with the target material, a shower of sparks was created due to the high heat generated causing localized melting on the surface of the abrasive particles. Shadow Moire, an inexpensive and easy-to-setup technique, was then used to estimate the depth, width, and circularity of the erosion scars. The same parameters were also measured using a non-contact optical profilometer to evaluate the accuracy of shadow moire technique. A good agreement has been observed where the shadow moire technique was capable of estimating the circularity, maximum depth, and the width to depth ratio of the erosion scars with a maximum error of 15%, 16%, and 12%, respectively. |
| Databáze: | OpenAIRE |
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