http://www.ub.edu/cmematerials/ca/taxocsv0/a%C3%AFllant ca http://www.ub.edu/cmematerials/ca/content/resist%C3%A8ncia <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/el%C3%A8ctric" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Elèctric</a></div><div class="field-item odd"><a href="/cmematerials/ca/taxocsv0/diel%C3%A8ctric" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Dielèctric</a></div><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/a%C3%AFllant" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Aïllant</a></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>La composició de la resistència obtinguda per FRX és:</p> <table border="1" cellpadding="1" cellspacing="1" style="width: 500px;"><tbody><tr><td>Component</td> <td>%</td> </tr><tr><td>Al₂O₃</td> <td>44</td> </tr><tr><td>SiO₂</td> <td>18</td> </tr><tr><td>Fe₂O₃</td> <td>18</td> </tr><tr><td>BaO</td> <td>13</td> </tr></tbody></table><p><span style="line-height: 1.6em;">Òxids amb composició inferior al 1%: CuO, Ag₂O, SnO₂, TiO₂, MgO, Cl, K₂O, SrO, Cr₂O₃, Bi₂O₃, MnO, SO₃, I i La..Lu.</span></p> <p><strong><span style="line-height: 1.6em;">​</span></strong><span style="line-height: 1.6em;"><strong>Observacions :</strong> La típica porcellana elèctrica consta aproximadament de un 50% d'argila, un 25% de SiO₂ i un 25% de feldespat. Aquesta composició fa que el material tingui una bona plasticitat al estat cru, i un marge ampli de temperatures de forn.</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-/584" 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/Resist%C3%A8ncia1.jpg" width="1018" height="832" alt="" title="Micrografia Nº1" /></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><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Resist%C3%A8ncia1.1.jpg" style="width: 715px; height: 707px;" /></p> <p>EDS 1. 1. part ceràmica central</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Resist%C3%A8ncia1.2.jpg" style="width: 716px; height: 709px;" /></p> <p>EDS 1. 2. part ceràmica externa</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Resist%C3%A8ncia1.3.jpg" style="width: 540px; height: 533px;" />​</p> <p>EDS 1. 3. part metàl·lica</p> </div></div></div> </div> </div> </div></div><div class="field-item odd"><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-/585" 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/Resist%C3%A8ncia2.jpg" width="1017" height="832" alt="" title="Micrografia Nº2" /></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><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Resist%C3%A8ncia2.jpg" style="width: 539px; height: 534px;" />​</p> </div></div></div> </div> </div> </div></div><div class="field-item even"><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-/586" 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/Resist%C3%A8ncia3.jpg" width="1018" height="832" alt="" title="Micrografia Nº3" /></div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> <fieldset class="field-group-tab group-prelectriques collapsible collapsed form-wrapper" id="node_materials_rss_group_prelectriques"><legend><span class="fieldset-legend">Propietats elèctriques</span></legend><div class="fieldset-wrapper"><div class="field field-name-field-rigide-dielectrica field-type-tablefield field-label-above"><div class="field-label">Rigidesa dielèctrica:&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>Rigidesa dielèctrica</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>2 - 12 kV/mm</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-perdua-dielectrica field-type-tablefield field-label-above"><div class="field-label">Pèrdua dielèctrica:&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 dielèctrica</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>0.06·60Hz</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-resistivitat-especifica field-type-tablefield field-label-above"><div class="field-label">Resistivitat especifica:&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>Resistivitat especifica</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>10¹¹ - 10¹³ Ω·m</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-constant-diel-ctrica field-type-tablefield field-label-above"><div class="field-label">Constant dielèctrica:&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>Constant dielèctrica</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>6·60Hz</p> </td> </tr> </tbody> </table> </div></div></div></div></div></fieldset> <fieldset class="field-group-htab group-aplicacions collapsible collapsed form-wrapper" id="node_materials_rss_group_aplicacions"><legend><span class="fieldset-legend">Aplicacions</span></legend><div class="fieldset-wrapper"><div class="field-collection-container clearfix"><div class="field field-name-field-g-ima-aplicacions field-type-field-collection field-label-above"><div class="field-label">Imatges:&nbsp;</div><div class="field-items"><div class="field-item even"><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-ima-aplicacions clearfix" about="/cmematerials/ca/field-collection/field-g-ima-aplicacions/587" typeof=""> <div class="content"> <div class="field field-name-field-ima-aplicacions field-type-image field-label-above"><div class="field-label">Imatges:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="http://www.ub.edu/cmematerials/sites/default/files/ima_aplicacions/Resist%C3%A8ncia.jpg" width="3264" height="2448" alt="" /></div></div></div><div class="field field-name-field-ima-aplicacions-desc field-type-text-long field-label-above"><div class="field-label">Descripció:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Imatge d'un circuit</p> </div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> </div></div><ul class="links inline"><li class="translation_es first last"><a href="/cmematerials/es/content/resistencia" title="Resistencia" class="translation-link">Español</a></li> </ul> Wed, 29 May 2013 07:42:15 +0000 editor 100 at http://www.ub.edu/cmematerials http://www.ub.edu/cmematerials/ca/content/resist%C3%A8ncia#comments http://www.ub.edu/cmematerials/ca/content/fusible <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/el%C3%A8ctric" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Elèctric</a></div><div class="field-item odd"><a href="/cmematerials/ca/taxocsv0/diel%C3%A8ctric" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Dielèctric</a></div><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/a%C3%AFllant" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Aïllant</a></div></div></div><div class="field field-name-field-primeres-materies field-type-text field-label-above"><div class="field-label">Primeres matèries:&nbsp;</div><div class="field-items"><div class="field-item even"><p>90% de talc 3MgO·4SiO₂.H₂O i 10% d'argila</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-difracci-de-raigs-x field-type-field-collection field-label-above"><div class="field-label">Difracció de raigs-X:&nbsp;</div><div class="field-items"><div class="field-item even"><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-difracci-de-raigs-x clearfix" about="/cmematerials/ca/field-collection/field-g-difracci-de-raigs-x/322" typeof=""> <div class="content"> <div class="field field-name-field-difraccio-raigs-x field-type-image field-label-above"><div class="field-label">Difracció de raigs-X:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="http://www.ub.edu/cmematerials/sites/default/files/difraccio_de_raigs_x/Fusible.jpg" width="1972" height="1262" alt="" title="Difractograma de raigs X un fusible" /></div></div></div><div class="field field-name-field-difraccio-raigs-x-prep field-type-text-long field-label-above"><div class="field-label">Preparació:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Com que no té alcalins, bon aïllant eléctric.</p> </div></div></div> </div> </div> </div></div></div></div></div><div class="field-collection-container clearfix"><div class="field field-name-field-g-microscopia-optica field-type-field-collection field-label-above"><div class="field-label">Microscòpia òptica:&nbsp;</div><div class="field-items"><div class="field-item even"><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-optica clearfix" about="/cmematerials/ca/field-collection/field-g-microscopia-optica/323" typeof=""> <div class="content"> <div class="field field-name-field-microscopia-optica field-type-image field-label-above"><div class="field-label"> Microscòpia òptica:&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_optica/Fusible.jpg" width="623" height="474" alt="" /></div></div></div> </div> </div> </div></div></div></div></div><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 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-/324" 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/Fusible.jpg" width="1009" height="829" alt="" title=" Micrografia Nº1" /></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>Presenta l'aspecte típic d'un cerámic sinteritzat: sense porositat amb un aspecte uniforme. Alta densificació.</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Fusible1.jpg" style="width: 718px; height: 710px;" />​</p> <p> </p> </div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> <fieldset class="field-group-tab group-prelectriques collapsible collapsed form-wrapper" id="node_materials_rss_group_prelectriques"><legend><span class="fieldset-legend">Propietats elèctriques</span></legend><div class="fieldset-wrapper"><div class="field field-name-field-perdua-dielectrica field-type-tablefield field-label-above"><div class="field-label">Pèrdua dielèctrica:&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 frequència de:</p> </th><th class="row_0 col_1"><p>Pèrdua dielèctrica</p> </th> </tr></thead> <tbody> <tr class="odd"><td class="row_1 col_0"><p>60 Hz</p> </td><td class="row_1 col_1"><p>(8-90)·10^-3</p> </td> </tr> <tr class="even"><td class="row_2 col_0"><p>10⁶ Hz</p> </td><td class="row_2 col_1"><p>(7-25)·10^-3</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-resistivitat-especifica field-type-tablefield field-label-above"><div class="field-label">Resistivitat especifica:&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>aïllant (esteatita)</p> </th><th class="row_0 col_2"><p>magnetita (semiconductor)</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> 10¹⁵Ω·cm</p> </td><td class="row_1 col_2"><p>10^-2Ω·cm</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-constant-diel-ctrica field-type-tablefield field-label-above"><div class="field-label">Constant dielèctrica:&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 freqència de:</p> </th><th class="row_0 col_1"><p>Constant dielèctrica</p> </th> </tr></thead> <tbody> <tr class="odd"><td class="row_1 col_0"><p>10⁶Hz</p> </td><td class="row_1 col_1"><p>6</p> </td> </tr> </tbody> </table> </div></div></div></div><div class="field field-name-field-observacions-prop-elect field-type-text-with-summary field-label-above"><div class="field-label">Observacions:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Bon aïllants elèctrics degut a la baixa pèrdua de potencia, baixa absorció d'humitat i bona resistència al impacte.</p> <p>Resistència dielèctrica 6-11 (kV/mm)</p> <p>Conductivitat elèctrica 10^-10-10^-12 (Ωm)^-1</p> <p>Resistivitat de volum &gt; 10¹² (Ωm)</p> </div></div></div></div></fieldset> <fieldset class="field-group-htab group-aplicacions collapsible collapsed form-wrapper" id="node_materials_rss_group_aplicacions"><legend><span class="fieldset-legend">Aplicacions</span></legend><div class="fieldset-wrapper"><div class="field-collection-container clearfix"><div class="field field-name-field-g-ima-aplicacions field-type-field-collection field-label-above"><div class="field-label">Imatges:&nbsp;</div><div class="field-items"><div class="field-item even"><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-ima-aplicacions clearfix" about="/cmematerials/ca/field-collection/field-g-ima-aplicacions/325" typeof=""> <div class="content"> <div class="field field-name-field-ima-aplicacions field-type-image field-label-above"><div class="field-label">Imatges:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="http://www.ub.edu/cmematerials/sites/default/files/ima_aplicacions/Fusible.jpg" width="300" height="165" alt="" /></div></div></div><div class="field field-name-field-ima-aplicacions-desc field-type-text-long field-label-above"><div class="field-label">Descripció:&nbsp;</div><div class="field-items"><div class="field-item even"><p>Aïllants electrònics i elèctrics de esteatita</p> </div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> </div></div><ul class="links inline"><li class="translation_es first last"><a href="/cmematerials/es/content/fusible" title="Fusible" class="translation-link">Español</a></li> </ul> Thu, 09 May 2013 08:20:28 +0000 editor 57 at http://www.ub.edu/cmematerials http://www.ub.edu/cmematerials/ca/content/fusible#comments