Tribological behavior of BK7 optical glass at elevated temperatures
| العنوان: | Tribological behavior of BK7 optical glass at elevated temperatures |
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| المؤلفون: | Saleh Akbarzadeh, Peiman Mosaddegh, Mostafa Zareei, Hassan Reiszadeh |
| المصدر: | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 233:580-592 |
| بيانات النشر: | SAGE Publications, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Friction coefficient, Materials science, Optical glass, Mechanical Engineering, Test rig, 02 engineering and technology, Surfaces and Interfaces, Tribology, 021001 nanoscience & nanotechnology, medicine.disease_cause, Surfaces, Coatings and Films, 020303 mechanical engineering & transports, Heated glass, 0203 mechanical engineering, Operating temperature, Mold, medicine, Composite material, 0210 nano-technology, Glass transition |
| الوصف: | Aspherical lenses are produced using glass molding technology in a temperature close to its glass transition temperature. Friction and wear between the moving mold surface and the heated glass is one of the important aspects of the optical lenses production. This paper presents an experimental study on the tribological behavior of BK7 optical glass at elevated temperatures using pin-on-disk test rig. Thirty experiments have been conducted to study the effect of operating temperature, applied load, and sliding speed on the friction coefficient and wear rate of BK7 optical glass disks in contact with alumina pin. Also, the relation between the generated entropy and the weight loss under different operating conditions has been studied. The experimental results show that with increasing the temperature up to the glass transition temperature, the wear volume and friction coefficient increase. Further increase in the temperature results in a decrease in the wear volume and friction coefficient. Increasing the applied load results in an increase in the wear rate. An investigation on the correlation of wear rate and the dissipated power shows a linear relation between these two parameters. |
| تدمد: | 2041-305X 1350-6501 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9e1de479a095412a90fe6083b013fcd9 https://doi.org/10.1177/1350650118788756 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........9e1de479a095412a90fe6083b013fcd9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 2041305X 13506501 |
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