http://www.ub.edu/cmematerials/ca/taxocsv0/ferrites-dures ca http://www.ub.edu/cmematerials/ca/content/ferrita-de-bari <div class="field-group-tabs-wrapper field-group-tabs group-tab2 "><h2 class="element-invisible">Pestanyes verticals</h2><div class="vertical-tabs-panes"><input class="vertical-tabs-active-tab" type="hidden" /> <fieldset class="field-group-tab group-dades-generals collapsible collapsed form-wrapper" id="node_materials_rss_group_dades_generals"><legend><span class="fieldset-legend">Dades generals</span></legend><div class="fieldset-wrapper"><div class="field field-name-field-classificaci- field-type-taxonomy-term-reference field-label-above"><div class="field-label">Classificació:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/cer%C3%A0mic" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Ceràmic</a></div><div class="field-item odd"><a href="/cmematerials/ca/taxocsv0/d%C3%BAs-espec%C3%ADfic" typeof="skos:Concept" property="rdfs:label skos:prefLabel">D&#039;ús específic</a></div><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/magn%C3%A8tics" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Magnètics</a></div><div class="field-item odd"><a href="/cmematerials/ca/taxocsv0/ferrites-dures" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Ferrites dures</a></div><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/ferrita-de-ba" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Ferrita de Ba</a></div></div></div><div class="field field-name-field-nomenclatura field-type-text field-label-above"><div class="field-label">Nomenclatura:&nbsp;</div><div class="field-items"><div class="field-item even"><p>BaO·6Fe₂O₃</p> </div></div></div><div class="field field-name-field-composicio-quimica field-type-text field-label-above"><div class="field-label">Composició química:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Carbonat de bari i Fe₂O₃.</p> </div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Tenim una ferrita dura. La composició de l'imant obtinguda per FRX és:</p> <table border="1" cellpadding="1" cellspacing="1" style="width: 500px;"><tbody><tr><td class="rtecenter">Component</td> <td class="rtecenter">%</td> </tr><tr><td class="rtecenter">Fe₂O₃</td> <td class="rtecenter">58</td> </tr><tr><td class="rtecenter">BaO</td> <td class="rtecenter">30</td> </tr><tr><td class="rtecenter">Na₂O</td> <td class="rtecenter">2,5</td> </tr><tr><td class="rtecenter">SiO₂</td> <td class="rtecenter">2,3</td> </tr><tr><td class="rtecenter">Al₂O₃</td> <td class="rtecenter">1,5</td> </tr><tr><td class="rtecenter">SO₃</td> <td class="rtecenter">1,2</td> </tr></tbody></table><p><span style="line-height: 1.6em;">Òxids amb composició inferior al 1%: MnO, SrO, Cl, La..Lu, MgO, K₂O, CaO i Co₃O₄.</span></p> <p><span style="line-height: 1.6em;">​</span><span style="line-height: 1.6em;">Ceràmica magnètica, imant</span></p> </div></div></div></div></fieldset> <fieldset class="field-group-tab group-caracteritzacio collapsible collapsed form-wrapper" id="node_materials_rss_group_caracteritzacio"><legend><span class="fieldset-legend"> Caracterització</span></legend><div class="fieldset-wrapper"><div class="field-collection-container clearfix"><div class="field field-name-field-g-microscopia-electronica- field-type-field-collection field-label-above"><div class="field-label">Microscòpia electrònica de scanning:&nbsp;</div><div class="field-items"><div class="field-item even"><div class="field-collection-view clearfix view-mode-full"><div class="entity entity-field-collection-item field-collection-item-field-g-microscopia-electronica- clearfix" about="/cmematerials/ca/field-collection/field-g-microscopia-electronica-/264" typeof=""> <div class="content"> <div class="field field-name-field-microscopia-electronica-sc field-type-image field-label-above"><div class="field-label"> Microscòpia electrònica de rastreig:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="http://www.ub.edu/cmematerials/sites/default/files/microscopia_electronica_sc/Ferrita%20de%20bari1.jpg" width="1011" height="832" alt="" /></div></div></div><div class="field field-name-field-microscopia-electronica-de field-type-text-long field-label-above"><div class="field-label">Descripció:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Es veuen els dominis.</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Ferrita%20de%20bari.jpg" style="width: 718px; height: 710px;" /></p> <p><label class="text_10px_bold" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-weight: bold; color: rgb(0, 0, 0); line-height: normal; background-color: rgb(239, 239, 239);"> </label><span style="color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; line-height: normal;">EDS 1. general</span></p> </div></div></div> </div> </div> </div></div><div class="field-item odd"><div class="field-collection-view clearfix view-mode-full field-collection-view-final"><div class="entity entity-field-collection-item field-collection-item-field-g-microscopia-electronica- clearfix" about="/cmematerials/ca/field-collection/field-g-microscopia-electronica-/265" typeof=""> <div class="content"> <div class="field field-name-field-microscopia-electronica-sc field-type-image field-label-above"><div class="field-label"> Microscòpia electrònica de rastreig:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="http://www.ub.edu/cmematerials/sites/default/files/microscopia_electronica_sc/Ferrita%20de%20bari2.jpg" width="1011" height="832" alt="" /></div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> <fieldset class="field-group-tab group-prmagnetiques collapsible collapsed form-wrapper" id="node_materials_rss_group_prmagnetiques"><legend><span class="fieldset-legend">Propietats magnètiques</span></legend><div class="fieldset-wrapper"><div class="field field-name-field-remanencia field-type-tablefield field-label-above"><div class="field-label">Remanència:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="tablefield-wrapper-0" class="tablefield-wrapper"><table id="tablefield-0" class="tablefield sticky-enabled"> <thead><tr><th class="row_0 col_0"><p>A la temperatura de:</p> </th><th class="row_0 col_1"><p>Remanència (Teslas)</p> </th> </tr></thead> <tbody> <tr class="odd"><td class="row_1 col_0"><p>T_amb</p> </td><td class="row_1 col_1"><p>0.38 T</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-perdua-histeresis field-type-tablefield field-label-above"><div class="field-label">Pèrdua per histèresis:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="tablefield-wrapper-0" class="tablefield-wrapper"><table id="tablefield-0" class="tablefield sticky-enabled"> <thead><tr><th class="row_0 col_0"><p>A la temperatura de:</p> </th><th class="row_0 col_1"><p>Pèrdua per histèresis</p> </th> </tr></thead> <tbody> <tr class="odd"><td class="row_1 col_0"><p>T_amb</p> </td><td class="row_1 col_1"><p>28 KJ/m³</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-camp-coertiu field-type-tablefield field-label-above"><div class="field-label">Camp coercitiu:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="tablefield-wrapper-0" class="tablefield-wrapper"><table id="tablefield-0" class="tablefield sticky-enabled"> <thead><tr><th class="row_0 col_0"><p>A la temperatura de:</p> </th><th class="row_0 col_1"><p>Camp coercitiu</p> </th> </tr></thead> <tbody> <tr class="odd"><td class="row_1 col_0"><p>T_amb</p> </td><td class="row_1 col_1"><p>23,5 - 24 A/cm</p> </td> </tr> </tbody> </table> </div></div></div></div></div></fieldset> </div></div><ul class="links inline"><li class="translation_es first last"><a href="/cmematerials/es/content/ferrita-de-bario" title="Ferrita de bario" class="translation-link">Español</a></li> </ul> Wed, 08 May 2013 07:36:25 +0000 editor 47 at http://www.ub.edu/cmematerials http://www.ub.edu/cmematerials/ca/content/ferrita-de-bari#comments