<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1665-3521</journal-id>
<journal-title><![CDATA[Superficies y vacío]]></journal-title>
<abbrev-journal-title><![CDATA[Superf. vacío]]></abbrev-journal-title>
<issn>1665-3521</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-35212010000200005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de los estados iniciales durante el proceso de nitruración postdescarga]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bernal]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rangel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Béjar]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Politécnica del Valle de México  ]]></institution>
<addr-line><![CDATA[Tultitlán Estado de México]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo Facultad de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo Instituto de Investigaciones Metalúrgicas ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2010</year>
</pub-date>
<volume>23</volume>
<numero>2</numero>
<fpage>24</fpage>
<lpage>26</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-35212010000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-35212010000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-35212010000200005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El propósito de la presente investigación es estudiar los estados iniciales de la nitruración postdescarga, la nucleación y crecimiento de nitruros en muestras de Fe puro. Muestras de hierro puro (ARMCO) fueron nitruradas por periodos de tiempo cortos para desarrollar una estructura incipiente. Los productos obtenidos de la nitruración fueron caracterizados por Microscopia Óptica, Microscopia Electrónica de Barrido (MEB) y Difracción de rayos X.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The aim of this research is to study initial stages of postdischarge nitriding, nucleation and growth of nitrides developed in iron (ARMCO) samples. Iron samples were nitrided for short periods to develop an incipient structure. Products obtained from the nitriding were examined by optical and scanning electron microscopy (SEM) and X-ray diffraction.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Nitridación]]></kwd>
<kwd lng="es"><![CDATA[Postdescarga]]></kwd>
<kwd lng="es"><![CDATA[Difusión]]></kwd>
<kwd lng="en"><![CDATA[Nitriding]]></kwd>
<kwd lng="en"><![CDATA[Postdischarge]]></kwd>
<kwd lng="en"><![CDATA[Diffusion]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Estudio de los estados iniciales durante el proceso de nitruraci&oacute;n postdescarga</b></font></p>              <p align="center"><font face="verdana" size="2">&nbsp;</font></p>              <p align="center"><font face="verdana" size="2"><b>J. L. Bernal*<b><sup>1</sup></b>, S. Rangel<sup>1</sup>, L. B&eacute;jar<sup>2</sup> y A. Medina<sup>3</sup></b></font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Universidad Polit&eacute;cnica del Valle de M&eacute;xico Avenida Mexiquense s/n, C.P. 54910, Tultitl&aacute;n, Estado de M&eacute;xico. *</i><a href="mailto:jberponce@yahoo.com">jberponce@yahoo.com</a>.</font></p>              <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> UMSNH. Facultad de Ingenier&iacute;a Mec&aacute;nica Edificio W, Ciudad Universitaria, Morelia, Michoac&aacute;n. 58000. M&eacute;xico.</i></font></p>              <p align="justify"><font face="verdana" size="2"><i><sup>3</sup> UMSNH. Instituto de Investigaciones Metal&uacute;rgicas Edificio U, Ciudad Universitaria, Morelia, Michoac&aacute;n. 58000. M&eacute;xico. </i></font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2">Recibido: 29 de septiembre de 2009.    <br>     Aceptado: 30 de abril de 2010.</font></p>              ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>              <p align="justify"><font face="verdana" size="2">El prop&oacute;sito de la presente investigaci&oacute;n es estudiar los estados iniciales de la nitruraci&oacute;n postdescarga, la nucleaci&oacute;n y crecimiento de nitruros en muestras de Fe puro. Muestras de hierro puro (ARMCO) fueron nitruradas por periodos de tiempo cortos para desarrollar una estructura incipiente. Los productos obtenidos de la nitruraci&oacute;n fueron caracterizados por Microscopia &Oacute;ptica, Microscopia Electr&oacute;nica de Barrido (MEB) y Difracci&oacute;n de rayos X.</font></p>              <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Nitridaci&oacute;n; Postdescarga; Difusi&oacute;n.</font></p>          <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>              <p align="justify"><font face="verdana" size="2">The aim of this research is to study initial stages of postdischarge nitriding, nucleation and growth of nitrides developed in iron (ARMCO) samples. Iron samples were nitrided for short periods to develop an incipient structure. Products obtained from the nitriding were examined by optical and scanning electron microscopy (SEM) and X&#150;ray diffraction.</font></p>              <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Nitriding; Postdischarge; Diffusion.</font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><a href="/pdf/sv/v23n2/v23n2a5.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>              ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;I&#93;. A. Ricard, J.E. Oseguera&#150;Pe&ntilde;a, L. Falk, H. Michel, M. Gantois. Active Species in microwave post&#150;discharge for steel surface nitriding, IEEE <i>Trans. Plasma Sci. </i><b>18, </b>940 (1990).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=9690345&pid=S1665-3521201000020000500001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;2&#93;. M.I. Helix, K.V.  Vadyanathan, B.G.  Streetman, H.B. Dietrich, P.K. Charterjee, <i>Thin Solid Films </i><b>55, </b>143 (1978).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=9690347&pid=S1665-3521201000020000500002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;3&#93;. M. Moisan, J. Pelletier (Eds.), Microwave Excited Plasmas, Plasma Technology,4, Elsevier, Amsterdam, 1992.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=9690349&pid=S1665-3521201000020000500003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;4&#93;. L. Falk, J. Oseguera, A. Ricard, H. Michel, M. Gantois, Mater. Sci. Eng. A <b>139, </b>132 (1991).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=9690351&pid=S1665-3521201000020000500004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>              ]]></body>
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