{"id":117535,"date":"2022-09-30T09:41:23","date_gmt":"2022-09-30T08:41:23","guid":{"rendered":"https:\/\/material-properties.org\/cerio-e-samario-comparacao-propriedades\/"},"modified":"2022-10-18T07:40:01","modified_gmt":"2022-10-18T06:40:01","slug":"cerio-e-samario-comparacao-propriedades","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/cerio-e-samario-comparacao-propriedades\/","title":{"rendered":"C\u00e9rio e Sam\u00e1rio &#8211; Compara\u00e7\u00e3o &#8211; Propriedades"},"content":{"rendered":"<p><em>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de c\u00e9rio e sam\u00e1rio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. C\u00e9rio vs. Sam\u00e1rio.<\/em><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-107619\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/cerium-and-samarium-comparison.png\" alt=\"c\u00e9rio e sam\u00e1rio - compara\u00e7\u00e3o\" width=\"1000\" height=\"900\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/cerium-and-samarium-comparison.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/cerium-and-samarium-comparison-300x270.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/01\/cerium-and-samarium-comparison-768x691.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Compare C\u00e9rio com outro elemento<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/Lanthanum-and-Cerium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Lant\u00e2nio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Lanthanum-properties-price-application-production-150x150.png\" alt=\"Lant\u00e2nio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Cerium-and-Samarium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Sam\u00e1rio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Samarium-properties-price-application-production-150x150.png\" alt=\"Samarium - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-modern-light su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Comparar Sam\u00e1rio com outro elemento<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<p><a href=\"https:\/\/material-properties.org\/Cobalt-and-Samarium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com Cobalto\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Cobalt-properties-price-application-production-150x150.png\" alt=\"Cobalto - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/material-properties.org\/Cerium-and-Samarium-comparison-properties\/\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft\" title=\"Compare com C\u00e9rio\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/10\/Cerium-properties-price-application-production-150x150.png\" alt=\"C\u00e9rio - Propriedades - Pre\u00e7o - Aplica\u00e7\u00f5es - Produ\u00e7\u00e3o\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>C\u00e9rio e Sam\u00e1rio &#8211; Sobre Elementos<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/cerium-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3>C\u00e9rio<\/h3>\n<p>O c\u00e9rio \u00e9 um metal macio, d\u00factil e branco prateado que mancha quando exposto ao ar, e \u00e9 macio o suficiente para ser cortado com uma faca.\u00a0O c\u00e9rio \u00e9 o segundo elemento da s\u00e9rie dos lantan\u00eddeos.\u00a0O c\u00e9rio tamb\u00e9m \u00e9 tradicionalmente considerado um dos elementos de terras raras.<\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-icon-text sue-panel-clickable\" data-url=\"https:\/\/material-properties.org\/samarium-properties-applications-price-production\/\" data-target=\"self\" style=\"min-height:58px;padding-left:72px;color:#000000\"><div class=\"sue-icon-text-icon\" style=\"color:#5dbcd2;font-size:48px;width:48px;height:48px\"><i class=\"sui sui-info-circle\" style=\"font-size:48px;color:#5dbcd2\"><\/i><\/div><div class=\"sue-icon-text-content sue-content-wrap\" style=\"color:#000000\">\n<h3>Sam\u00e1rio<\/h3>\n<p>O sam\u00e1rio \u00e9 um membro t\u00edpico da s\u00e9rie dos lantan\u00eddeos, \u00e9 um metal prateado moderadamente duro que oxida facilmente no ar. O nome sam\u00e1rio vem do mineral samarskita do qual foi isolado. Embora classificado como um elemento de terras raras, o sam\u00e1rio \u00e9 o 40\u00ba elemento mais abundante na crosta terrestre e \u00e9 mais comum do que metais como o estanho. Na ind\u00fastria nuclear, especialmente o sam\u00e1rio 149 natural e artificial tem um impacto importante na opera\u00e7\u00e3o de um reator nuclear. Samarium 149 tem uma se\u00e7\u00e3o transversal de captura de n\u00eautrons muito grande (cerca de 42000 celeiros). Como o sam\u00e1rio natural cont\u00e9m cerca de 14% de 149Sm, pode ser usado como material absorvente em hastes de controle.<\/p>\n<\/div><div style=\"clear:both;height:0\"><\/div><\/div>\n<\/div><\/div>\n<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92299\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Cerium-periodic-table-300x274.png\" alt=\"C\u00e9rio na Tabela Peri\u00f3dica\" width=\"300\" height=\"274\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Cerium-periodic-table-300x274.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Cerium-periodic-table.png 541w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-medium wp-image-92469\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Samarium-periodic-table-296x300.png\" alt=\"Sam\u00e1rio na Tabela Peri\u00f3dica\" width=\"296\" height=\"300\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Samarium-periodic-table-296x300.png 296w, https:\/\/material-properties.org\/wp-content\/uploads\/2020\/09\/Samarium-periodic-table.png 674w\" sizes=\"(max-width: 296px) 100vw, 296px\" \/><\/p>\n<p style=\"text-align: left;\"><\/p><\/div><\/div>\n<p style=\"text-align: center;\">Fonte: www.luciteria.com<\/p>\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>C\u00e9rio e Sam\u00e1rio &#8211; Aplica\u00e7\u00f5es<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/cerium-properties-applications-price-production\/\">C\u00e9rio<\/a><\/h3>\n<p>O c\u00e9rio \u00e9 um componente importante da liga mischmetal. O ferroc\u00e9rio \u00e9 uma liga pirof\u00f3rica sint\u00e9tica que produz fa\u00edscas quentes que podem atingir temperaturas de 3000 \u00b0C (5430 \u00b0F) quando rapidamente oxidado pelo processo de golpear a haste, fragmentando-a e expondo esses fragmentos ao oxig\u00eanio do ar. Uma composi\u00e7\u00e3o t\u00edpica inclui aproximadamente 55% de c\u00e9rio, 25% de lant\u00e2nio e 15-18% de neod\u00edmio com outros metais de terras raras a seguir. O uso mais conhecido para esta liga \u00e9 em &#8216;s\u00edlex&#8217; para isqueiros. Ceria \u00e9 o composto de c\u00e9rio mais amplamente utilizado. A principal aplica\u00e7\u00e3o da c\u00e9ria \u00e9 como composto de polimento, por exemplo, na planariza\u00e7\u00e3o qu\u00edmico-mec\u00e2nica (CMP).<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<div class=\"sue-shadow-wrap sue-content-wrap sue-shadow-inline-no\"><div class=\"sue-shadow sue-shadow-style-vertical\">\n<div class=\"sue-panel\" data-url=\"\" data-target=\"self\" style=\"background-color:#ffffff;color:#333333;border-radius:0px;-moz-border-radius:0px;-webkit-border-radius:0px;box-shadow:none;-moz-box-shadow:none;-webkit-box-shadow:none;border:1px solid #cccccc\"><div class=\"sue-panel-content sue-content-wrap\" style=\"padding:15px;text-align:left\">\n<h3><a href=\"https:\/\/material-properties.org\/samarium-properties-applications-price-production\/\">Sam\u00e1rio<\/a><\/h3>\n<p>Sam\u00e1rio \u00e9 usado principalmente na prepara\u00e7\u00e3o de \u00edm\u00e3s de liga de sam\u00e1rio-cobalto para guitarras el\u00e9tricas, pequenos motores e fones de ouvido.\u00a0Os \u00edm\u00e3s de sam\u00e1rio-cobalto s\u00e3o muito mais poderosos que os \u00edm\u00e3s de ferro.\u00a0Eles permanecem magn\u00e9ticos em altas temperaturas e, portanto, s\u00e3o usados \u200b\u200bem aplica\u00e7\u00f5es de micro-ondas.\u00a0Eles possibilitaram a miniaturiza\u00e7\u00e3o de dispositivos eletr\u00f4nicos.\u00a0No entanto, os \u00edm\u00e3s de neod\u00edmio agora s\u00e3o mais comumente usados.\u00a0Seu \u00f3xido \u00e9 usado para a fabrica\u00e7\u00e3o de vidros especiais de absor\u00e7\u00e3o de infravermelho para eletrodos de l\u00e2mpadas de arco de carbono.\u00a0\u00c9 \u00fatil na dopagem de cristais de fluoreto de c\u00e1lcio empregados em lasers \u00f3pticos.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<div class=\"su-heading su-heading-style-modern-1-dark su-heading-align-left\" id=\"\" style=\"font-size:13px;margin-bottom:20px\"><div class=\"su-heading-inner\">\n<h2>C\u00e9rio e Sam\u00e1rio &#8211; Compara\u00e7\u00e3o na Tabela<\/h2>\n<\/div><\/div>\n<div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\">Elemento<\/td>\n<td style=\"text-align: center;\"><b>C\u00e9rio<\/b><\/td>\n<td style=\"text-align: center;\"><b>Sam\u00e1rio<\/b><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Densidade<\/td>\n<td style=\"text-align: center;\"><strong>6,689 g\/cm<sup>3<\/sup><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>7,353 g\/cm<sup>3<\/sup><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>100 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>124 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">For\u00e7a de rendimento<\/td>\n<td style=\"text-align: center;\"><strong>90 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>110 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">M\u00f3dulo de elasticidade de Young<\/td>\n<td style=\"text-align: center;\"><strong>33,6 GPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>49,7 GPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Escala de Mohs<\/td>\n<td style=\"text-align: center;\"><strong>2,5<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>N\/D<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Dureza Brinell<\/td>\n<td style=\"text-align: center;\"><strong>412 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>441 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Dureza Vickers<\/td>\n<td style=\"text-align: center;\"><strong>300 MPa<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>412 MPa<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Ponto de fus\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>798 \u00b0C<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>1074 \u00b0C<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Ponto de ebuli\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>3457 \u00b0C<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>1900 \u00b0C<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Condutividade t\u00e9rmica<\/td>\n<td style=\"text-align: center;\"><strong>11 W\/mK<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>13 W\/mK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Coeficiente de Expans\u00e3o T\u00e9rmica<\/td>\n<td style=\"text-align: center;\"><strong>6,3 \u00b5m\/mK<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>12,7 \u00b5m\/mK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Calor espec\u00edfico<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">0,19 J\/gK<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>0,2 J\/gK<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Calor de fus\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong>5,46 kJ\/mol<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>8,63 kJ\/mol<\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\">Calor da vaporiza\u00e7\u00e3o<\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\">414 kJ\/mol<\/span><\/strong><\/td>\n<td style=\"text-align: center;\"><strong>192 kJ\/mol<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de c\u00e9rio e sam\u00e1rio, dois elementos qu\u00edmicos compar\u00e1veis \u200b\u200bda tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. C\u00e9rio vs. Sam\u00e1rio. Fonte: www.luciteria.com &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e9rio e Sam\u00e1rio - Compara\u00e7\u00e3o - Propriedades - Material Properties<\/title>\n<meta name=\"description\" content=\"Este artigo cont\u00e9m uma compara\u00e7\u00e3o das principais propriedades t\u00e9rmicas e at\u00f4micas de c\u00e9rio e sam\u00e1rio, dois elementos qu\u00edmicos compar\u00e1veis da tabela peri\u00f3dica. Ele tamb\u00e9m cont\u00e9m descri\u00e7\u00f5es b\u00e1sicas e aplica\u00e7\u00f5es de ambos os elementos. 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