| Surface Nitridation of Molybdenum by Laser-promoted Reaction |
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| 引用本文： | WU Jiada, WU Changzheng, ZHONG Xiaoxia,SONG Zhoumo, LI Fuming(Department of Physics,Fundan University,Shanghai 200433)(Deprtment of Applied Physics,Northwestern Polytechnical University,Xi'an 710072,China). Surface Nitridation of Molybdenum by Laser-promoted Reaction[J]. Chinese Journal of Lasers, 1997, 6(2): 161-168 |
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| 作者姓名： | WU Jiada WU Changzheng ZHONG Xiaoxia SONG Zhoumo LI Fuming(Department of Physics Fundan University Shanghai 200433)(Deprtment of Applied Physics Northwestern Polytechnical University Xi'an 710072 China) |
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| 作者单位： | WU Jiada; WU Changzheng; ZHONG Xiaoxia;SONG Zhoumo; LI Fuming(Department of Physics，Fundan University，Shanghai 200433)(Deprtment of Applied Physics，Northwestern Polytechnical University，Xi'an 710072，China) |
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| 基金项目： | Supported in part by a grant from State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams. |
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| 摘 要： | l.IntroductionowingtotheirpromisingproPertiesandPOtentialapplications,transitionmetalni-trideshavedrawngreatattentionandthepreparationandinvestigationofthesecom-poundshavebeenasubjectbothofscientificandoftechnologicalinterest.Transitionmetalnitridescombineadvantagesofexce1lenthardness,highmeltingPOint,goodchemi-calstabilityandhigheIectricalconductivity[11,henceoverlaySofthesecompoundshavefoundwideappIicationsinvariousfie1ds.Molybdenumnitrides,inparticular,havealsoemergedasverypromisingcandi…
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| 收稿时间： | 1996-07-15 |
Surface Nitridation of Molybdenum by Laser-promoted Reaction |
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| WU Jiada, WU Changzheng, ZHONG Xiaoxia,SONG Zhoumo, LI Fuming. Surface Nitridation of Molybdenum by Laser-promoted Reaction[J]. 中国激光(英文版), 1997, 6(2): 161-168 |
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| Authors: | WU Jiada WU Changzheng ZHONG Xiaoxia SONG Zhoumo LI Fuming |
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| Abstract: | Experimental results are reported about the surface nitridation of molyly denum by repeated pulsed laser irradiation on molyboenum foils in pure nitrogen atmosphere. In this laser treatment, the laser irradiation activates nitrogen and melts Mo surface, initating a nitridation reaction in liquid phase. The obtained nitride layers were analyzed and characterized by scanning electron micrography, Auger electron spectroscopy and X -ray diffraction. It is found that the nitride layers contain γ-Mo2N phase and have microstructure much denser than that of the original material. Surface heating and melting and transient shock waves induced by laser pulses could account for the microstructure densification of the nitride layers. |
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| Keywords: | laser-promoted reaction laser heating and melting surface nitridation |
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