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Production and Mechanical Behaviour of Biomedical CoCrMo Alloy
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作者 O.Sahin A.Rıza Tuncdemir +2 位作者 H.Ali Cetinkara H.Salih Guder e.sahin 《Chinese Physics Letters》 SCIE CAS CSCD 2011年第12期215-218,共4页
Cobalt-based alloy(Co-30Cr-5.5Mo)is produced by the investment casting process.This alloy complies with the ASTM F75 standard and is widely used in the manufacturing of orthopedic implants because of its high strength... Cobalt-based alloy(Co-30Cr-5.5Mo)is produced by the investment casting process.This alloy complies with the ASTM F75 standard and is widely used in the manufacturing of orthopedic implants because of its high strength,good corrosion resistance and excellent biocompatibility properties.SEM,XRD and microhardness tests are used to examine the mechanical properties of the material.The examined material exhibits the behaviour of indentation size effect(ISE).Our results reveal that Vickers and Knoop microhardness are dependent on indentation test load.The traditional Meyer's law,the proportional specimen resistance(PSR)model and the Hays-Kendall model(HK)are used to analyze the load dependence of the hardness.As a result,the Hays-Kendall model is found to be the most effective to determine the load-independent hardness HLI of CoCrMo alloy. 展开更多
关键词 ALLOY RESISTANCE PROCESS
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Crystal and Molecular Structure of 4-Benzoyl-1,5-diphenyl-1H-pyrazole-3-carbonitrile
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作者 E.Korkusuz e.sahin I.Yildirim 《Crystal Structure Theory and Applications》 2012年第1期1-8,共8页
The crystal structure of potential active 4-benzoyl-1,5-diphenyl-1H*-pyrazole-3-carbonitrile (C23H15N3O) (I) has been determined from single crystal X-ray diffraction data. Also IR, Uv-vis and NMR spectral data were d... The crystal structure of potential active 4-benzoyl-1,5-diphenyl-1H*-pyrazole-3-carbonitrile (C23H15N3O) (I) has been determined from single crystal X-ray diffraction data. Also IR, Uv-vis and NMR spectral data were determined. The title compound crystallizes in the monoclinic space group P* 21/c, with a* = 9.3167(2), b* = 20.6677(3), c* = 10.6143(3) ?, β* = 112.665(3)°, V* = 1886.00(8) ?3, Dcalc* = 1.23g cm-3, Z* = 4. In the structure, intermolecular H*-bonds lead to the formation of a centrosymmetric dimmer of the molecule. Furthermore, the compound has a wide transmission window (300 to 1100 nm) with a transparency of nearly 100% and the UV cut-off wavelength occurs at 242 nm. 展开更多
关键词 Pyrazole-3-Carbonitrile 2 3-Furandione Single Crystal Structure X-Ray Diffraction IR NMR Spectra
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