http://www.ub.edu/cmematerials/ca/taxocsv0/groc ca http://www.ub.edu/cmematerials/ca/content/pigment-groc <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/pigment" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Pigment</a></div><div class="field-item odd"><a href="/cmematerials/ca/taxocsv0/zirc%C3%B3" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Zircó</a></div><div class="field-item even"><a href="/cmematerials/ca/taxocsv0/groc" typeof="skos:Concept" property="rdfs:label skos:prefLabel">Groc</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>Groc de Praseodimi DCMA 14-43-4</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>Composició química : (Zr,Pr)SiO₄ Nº CAS 68187-15-5</p> <p>La composició del pigment groc 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>ZrO₂</td> <td>66</td> </tr><tr><td>SiO2</td> <td>22</td> </tr><tr><td>La..Lu</td> <td>7,3</td> </tr><tr><td>Pr₆O₁₁</td> <td>2,6</td> </tr></tbody></table><p><span style="line-height: 1.6em;">Òxids de composició inferior al 1%: Y₂O₃, Al₂O₃, Nb₂O₅, K₂O i Fe₂O₃.</span></p> <p><strong>Observacions : </strong>El groc és el color que té una longitud d'ona entre 565nm i 590 nm. ës un complement del blau i com a tal els pigments grocs absorbeixen la llum blava. ës un dels pigments primaris. Pot incloure en la seva fórmula modificadors com halurs alcalins i/o alcalinoterris</p> <p><span style="line-height: 1.6em;"><strong>Matèries primeres : </strong>S'obté per reacció de ZrO₂ amb òxid de praseodimi Pr₂O₃ com additiu cromòfor i SiO₂ per obtenir l'estructura del zircó. </span></p> <p><span style="line-height: 1.6em;"><strong>Productes : </strong>Dissolució sòlida de praseodimi en zircó (Zr, Pr)SiO₄. La presencia d'un lleuger exces de ZrO₂ó de ZnO afavoreix l'estabilitat del color. No es sensible a atmòsferes reductores</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-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/453" 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/Pigment%20groc.jpg" width="5996" height="3677" alt="" title="Difractograma de raigs X de pigment groc" /></div></div></div><div class="field field-name-field-difraccio-raigs-x-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>El difractograma corresponent al zircó en el que el praseodimi es troba en dissolució sòlida.</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-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-/454" 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/Pigment%20groc1.jpg" width="1024" height="750" alt="" title="Micrografia Nº1" /></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-/455" 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/Pigment%20groc2.jpg" width="1024" height="750" 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/Pigment%20groc2.jpg" style="width: 541px; height: 537px;" /></p> </div></div></div> </div> </div> </div></div><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-/456" 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/Pigment%20groc3.jpg" width="1024" height="750" alt="" title="Micrografia Nº3" /></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 mostra la distribució de morfologies i mides de partícules en el groc de praseodimi. EDs composició general de la mostra. L'oxigen no es detecta per falta de detector.</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-/457" 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/Pigment%20groc4.jpg" width="1024" height="750" alt="" title="Micrografia Nº4" /></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 mostra una partícula de morfologia arrodonida formada per aglomeració de partícules més petits. El EDS mostra un contingut elevat de praseodimi. L'oxigen no es detecta per falta de detector.</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Pigment%20groc4.jpg" style="width: 543px; height: 537px;" />​</p> </div></div></div> </div> </div> </div></div><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-/458" 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/Pigment%20groc5.jpg" width="1024" height="750" alt="" title="Micrografia Nº5" /></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 mostra una partícula formada fonamentalment per Si (EDS). L'oxigen no es detecta per falta de detector.</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Pigment%20groc5.jpg" style="width: 544px; height: 538px;" />​</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-/459" 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/Pigment%20groc6.jpg" width="1024" height="750" alt="" title="Micrografia Nº6" /></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 mostra una partícula d'uns 10µm .Els components majoritaris són Si i Zr. L'oxigen no es detecta per falta de detector.</p> <p><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/EDS/Pigment%20groc6.jpg" style="width: 541px; height: 535px;" />​</p> </div></div></div> </div> </div> </div></div></div></div></div></div></fieldset> <fieldset class="field-group-tab group-proptiques collapsible collapsed form-wrapper" id="node_materials_rss_group_proptiques"><legend><span class="fieldset-legend">Propietats òptiques</span></legend><div class="fieldset-wrapper"><div class="field field-name-field-observaciones-prop-optique 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><img alt="" src="http://www.ub.edu/cmematerials/sites/default/files/Pigments/Pigment%20groc.jpg" style="width: 622px; height: 474px;" /></p> <div><strong>Estandards de colors:</strong></div> <div> </div> <div> <table border="1" cellpadding="1" cellspacing="1" style="width: 500px;"><tbody><tr><td class="rtecenter">L*</td> <td class="rtecenter">84.81</td> </tr><tr><td class="rtecenter">a*</td> <td class="rtecenter">4.27</td> </tr><tr><td class="rtecenter">b*</td> <td class="rtecenter">68.20</td> </tr></tbody></table><p> </p> <table border="1" cellpadding="1" cellspacing="1" style="width: 500px;"><tbody><tr><td class="rtecenter">R </td> <td class="rtecenter">254,21</td> </tr><tr><td class="rtecenter">G</td> <td class="rtecenter">205,73</td> </tr><tr><td class="rtecenter">B</td> <td class="rtecenter">75,52</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/pigmento-amarillo" title="Pigmento amarillo" class="translation-link">Español</a></li> </ul> Thu, 23 May 2013 08:54:39 +0000 editor 81 at http://www.ub.edu/cmematerials http://www.ub.edu/cmematerials/ca/content/pigment-groc#comments