PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Prev
Next
|
|
|
Nitriding molybdenum: Effects of duration and fill gas pressure when using 100-Hz pulse DC discharge technique |
U. Ikhlaqa, R. Ahmadb, M. Shafiqc, S. Saleema, M. S. Shaha, T. Hussainb, I. A. Khand, K. Abbasa, M. S. Abbasb |
a Department of Physics, Government College University, Lahore 54000, Pakistan; b Centre for Advanced Studies in Physics (CASP), Government College University, Lahore 54000, Pakistan; c Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan; d Department of Physics, GC University Faisalabad, Faisalabad 38000, Pakistan |
|
|
Abstract Molybdenum is nitrided by a 100-Hz pulsed DC glow discharge technique for various time durations and fill gas pressures to study the effects on the surface properties of molybdenum. X-ray diffractometry (XRD), scanning electron microscopy (SEM), and atomic force microscopy (AFM) are used for the structural and morphological analysis of the nitrided layers. Vickers' microhardness tester is utilized to investigate surface microhardness. Phase analysis shows the formation of more molybdenum nitride molecules for longer nitriding durations at fill gas pressures of 2 mbar and 3 mbar (1 bar=105 Pa). A considerable increase in surface microhardness (approximately by a factor of 2) is observed for longer duration (10 h) and 2-mbar pressure. Longer duration (10 h) and 2-mbar fill gas pressure favors the formation of homogeneous, smooth, hard layers by the incorporation of more nitrogen.
|
Received: 22 November 2013
Revised: 06 June 2014
Accepted manuscript online:
|
PACS:
|
52.80.Hc
|
(Glow; corona)
|
|
61.05.cp
|
(X-ray diffraction)
|
|
68.37.Hk
|
(Scanning electron microscopy (SEM) (including EBIC))
|
|
68.37.Ps
|
(Atomic force microscopy (AFM))
|
|
Corresponding Authors:
R. Ahmad
E-mail: ahriaz@gcu.edu.pk
|
About author: 52.80.Hc; 61.05.cp; 68.37.Hk; 68.37.Ps |
Cite this article:
U. Ikhlaq, R. Ahmad, M. Shafiq, S. Saleem, M. S. Shah, T. Hussain, I. A. Khan, K. Abbas, M. S. Abbas Nitriding molybdenum: Effects of duration and fill gas pressure when using 100-Hz pulse DC discharge technique 2014 Chin. Phys. B 23 105203
|
|
| [1] | Paulson K, Lionheart W and Pidcock M 1993 IEEE Trans. Med. Imag. 12 681
|
|
| [21] | Qayyum A, Ikram M, Zakaullah M, Waheed A, Murtaza G, Ahmad R, Majeed A. Khattak N A D, Mansoor K and Chaudhry K A 2003 Int. J. Mod. Phys. B 17 2749
|
|
| [2] | Metheral P, Barber D C, Smallwood R H and Brown B H 1996 Nature 380 509
|
|
| [22] | Barbosa J, Cunha L, Rebouta L, Moura C, Vaz F, Carvalho S, Alves E, Bourhis E L, Goudeau P and Riviere J P 2006 Thin Solid Films 494 201
|
|
| [3] | Griffiths H 2001 Meas. Sci. Technol. 12 1126
|
|
| [23] | Wang Y and Lin R Y 2004 Mater. Sci. Eng. B 112 42
|
|
| [24] | Fujimoto F, Nakane Y, Satou M Komori F, Ogata K and Andoh Y 1987 Nucl. Instrum. Methods Phys. Res. Part B 19/20 791
|
|
| [25] | Ihara H, Kimura Y, Senzaki K, Kezuka H and Hirabayashi M 1985 Phys. Rev. B 31 3177
|
|
| [4] | Han W, Shah J and Balaban R S 1998 IEEE Trans. Med. Imag. 45 119
|
|
| [26] | Perry A J, Baouchi A W, Petersen J H and Pozder S D 1992 Surf. Coat. Technol. 54/55 261
|
|
| [5] | Jensen J A and Svendsen N B 1992 IEEE Trans. Ultrason. Ferroelectr. Freq. Control 39 262
|
|
| [27] | Shah M S, Shah M S, Ahmad R, Zakaullah M and Murtaza G 2008 Plasma Devices Operations 16 247
|
|
| [28] | Shen Y G 2003 Mater. Sci. Eng. A 359 158
|
|
| [6] | Li X and He B 2010 IEEE Trans. Med. Imag. 29 1759
|
|
| [29] | Hassan A M and Al-Basharat A S 1996 Wear. 199 1
|
|
| [7] | Xia R, Li X and He B 2010 IEEE Trans. Biomed. Eng. 57 708
|
|
| [30] | Qi J, Luo J B, Wen S Z, Wang J and Li W Z 2000 Surf. &Coat. Technol . 128-129 324
|
|
| [31] | Wang L Ji S and Sun J 2006 Surf. & Coat. Technol. 200 5067
|
|
| [8] | Renzhiglova E, Ivantsiv V and Xu Y 2010 IEEE Trans. Ultrason. Ferroelect. Freq. Control 57 2391
|
|
| [9] | Leonid K 2012 Inverse Problems 28 035002
|
|
| [32] | Paul A and Wingbermhle J 2006 Appl. Surf. Sci. 252 8151
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|