{"id":607579,"date":"2024-11-05T22:38:02","date_gmt":"2024-11-05T22:38:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-227652016\/"},"modified":"2024-11-05T22:38:02","modified_gmt":"2024-11-05T22:38:02","slug":"iso-227652016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-227652016\/","title":{"rendered":"ISO 22765:2016"},"content":{"rendered":"<p>ISO 18610:2016 d\u00e9crit la proc\u00e9dure c\u00e9ramographique utilis\u00e9e pour pr\u00e9parer des pastilles de (U,Pu)O<sub>2<\/sub> fritt\u00e9es afin de r\u00e9aliser des examens qualitatifs et quantitatifs de leur microstructure.<\/p>\n<p>Ces examens sont r\u00e9alis\u00e9s avant et apr\u00e8s un traitement thermique ou une attaque chimique.<\/p>\n<p>Ils permettent:<\/p>\n<p>&#8211;      l&#039;observation d&#039;\u00e9ventuels fissures, pores inter- et intragranulaires ou inclusions; et<\/p>\n<p>&#8211;      le mesurage des tailles de grains, de la porosit\u00e9 et de l&#039;homog\u00e9n\u00e9it\u00e9 de la distribution du plutonium.<\/p>\n<p>Le diam\u00e8tre de grain moyen est mesur\u00e9 par l&#039;une des m\u00e9thodes classiques suivantes: comptage (m\u00e9thode par interception), comparaison \u00e0 des grilles normalis\u00e9es ou des images types, etc[2]. Le mesurage des dimensions du grain requiert la r\u00e9v\u00e9lation uniforme de la microstructure sur l&#039;ensemble de l&#039;\u00e9chantillon.<\/p>\n<p>La localisation et la distribution des pores et des agglom\u00e9rats de plutonium sont en g\u00e9n\u00e9ral analys\u00e9es par des syst\u00e8mes automatiques d&#039;analyse des images. La distribution du plutonium est, en r\u00e8gle g\u00e9n\u00e9rale, mise en \u00e9vidence par une attaque chimique mais il est \u00e9galement possible d&#039;utiliser l&#039;autoradiographie alpha. La premi\u00e8re technique \u00e9vite la tendance propre \u00e0 l&#039;autoradiographie, d&#039;exag\u00e9rer la taille des agglom\u00e9rats riches en plutonium en raison de la distance parcourue par les particules alpha depuis la source.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Technologie du combustible nucl\u00e9aire \u2014 Pastilles (U,Pu)O2 fritt\u00e9es \u2014 Pr\u00e9conisations relatives \u00e0 la pr\u00e9paration c\u00e9ramographique pour examen de la microstructure<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2016-12<\/td>\n<td>12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":607591,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[464,2634],"product_tag":[],"class_list":{"0":"post-607579","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-27-120-30","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/607579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/607591"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=607579"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=607579"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=607579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}