Effect of Laser Treatment on Surface and Interface of Silicon Nitride Coated Ti6Al7Nb Alloy – A Statistical Analysis

Issac, R. Franklin; Devaraju, A.

doi:10.1007/s12633-023-02319-4

Cited by 2 publications

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References 60 publications

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“…Silicon nitride coatings were deposited by cathodic arc deposition on Ti6Al7Nb surfaces and subsequently treated with a Yb-doped fiber laser beam [ 75 ]. The laser irradiation improved the microhardness and reduced the residual stress and the coefficient of friction.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

Silicon Nitride Ceramics: Structure, Synthesis, Properties, and Biomedical Applications

Heimann

2023

Materials

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Silicon nitride ceramics excel by superior mechanical, thermal, and chemical properties that render the material suitable for applications in several technologically challenging fields. In addition to high temperature, high stress applications have been implemented in aerospace gas turbines and internal combustion engines as well as in tools for metal manufacturing, forming, and machining. During the past few decades, extensive research has been performed to make silicon nitride suitable for use in a variety of biomedical applications. This contribution discusses the structure–property–application relations of silicon nitride. A comparison with traditional oxide-based ceramics confirms that the advantageous mechanical and biomedical properties of silicon nitride are based on a high proportion of covalent bonds. The present biomedical applications are reviewed here, which include intervertebral spacers, orthopedic and dental implants, antibacterial and antiviral applications, and photonic parts for medical diagnostics.

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Section: Biomedical Applicationsmentioning

confidence: 99%

Silicon Nitride Ceramics: Structure, Synthesis, Properties, and Biomedical Applications

Heimann

2023

Materials

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“…(student error) is less than the F-value and 0.05 for the linear and square terms of the in uencing factors for both responses. It ensures that the level of signi cance is above 95% for both responses[35]. The adequacy of the regression models of the speci c wear rate and CoF is tabulated in…”

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confidence: 99%

Effect of Calcium Silicate on Mechanical and Frictional Wear Behaviors of AA7075 Hybrid Composites: A Statistical Analysis

2024

Preprint

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Recently, Aluminium Alloy (AA) 7075 based Metal Matrix Composites (MMC) have been widely used in aerospace applications due to their high strength to density ratio, but it mostly fails in tribo applications. The addition of ceramic material like Al2O3 to the AA7075 Hybrid Composites (AHCs) has improved their wear and thermal properties, but the density of the AHCs has also increased. In this regard, it is essential to identify a low-density ceramic to improve the wear resistance of the AHCs without affecting their density or mechanical strength. For the study on the effect of Ca2SiO4 on the AHCs, the AHCs/Al2O3/Ca2SiO4 samples were successfully fabricated and tested in terms of mechanical and frictional wear properties. The fabricated AHCs had a relative density of around 3.54±0.05% higher than AA7075, which is due to the impact of high-density ceramic Al2O3 reinforcement. The lowest specific wear rate is obtained for the AHCs/Al2O3(10 wt. %)/Ca2SiO4(8 wt. %) at the high applied load and the low sliding velocity, which is around 1.44 x 10-6 g/Nm, and its corresponding CoF is 0.158. Finally, the wear maps are developed from the contour plots of responses to identify the cause and consequences of the wear mechanism during the dry sliding of AHCs.

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Effect of Laser Treatment on Surface and Interface of Silicon Nitride Coated Ti6Al7Nb Alloy – A Statistical Analysis

Cited by 2 publications

References 60 publications

Silicon Nitride Ceramics: Structure, Synthesis, Properties, and Biomedical Applications

Silicon Nitride Ceramics: Structure, Synthesis, Properties, and Biomedical Applications

Effect of Calcium Silicate on Mechanical and Frictional Wear Behaviors of AA7075 Hybrid Composites: A Statistical Analysis

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