{"id":318800,"date":"2024-10-19T22:01:27","date_gmt":"2024-10-19T22:01:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-20-30373037-dc-2020\/"},"modified":"2024-10-25T20:19:35","modified_gmt":"2024-10-25T20:19:35","slug":"bsi-20-30373037-dc-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-20-30373037-dc-2020\/","title":{"rendered":"BSI 20\/30373037 DC 2020"},"content":{"rendered":"<p>This standard describes methods for the determination of mineralogical phases often present as additives or reaction produced in carbon containing or graphitic refractory products by X-ray Diffraction (XRD) using a Bragg-Brentano diffractometer. It includes details of sample preparation and general principles for qualitative and quantitative analysis of mineralogical phase composition. Quantitative determination of \u03b1-Si<sub>3<\/sub>N<sub>4<\/sub>, \u03b2-Si<sub>3<\/sub>N<sub>4<\/sub>, AlN, aluminium metal, Al<sub>4<\/sub>C<sub>3<\/sub>, silicon metal, boron carbide and BN are described. The problems encountered with some determinations are highlighted.<\/p>\n<p>Additional reduced species present in some refractories could include Al<sub>2<\/sub>O<sub>3<\/sub>\u22c5AlN solid solutions (so called Alons), Si<sub>3<\/sub>N<sub>4<\/sub>\u22c5SiO<sub>2<\/sub> solid solutions and Si<sub>3<\/sub>N<sub>4<\/sub>\u22c5Al<sub>2<\/sub>O<sub>3<\/sub> solid solutions (Sialons). The presence of some of these solid solution components will cause problems with both identification and quantification as they are not well defined structures.<\/p>\n<div class=\"non-normative-note\">\n<div class=\"note-label\">\n  NOTE\n <\/div>\n<p>For rationalisation of nitrogen containing phases, the total nitrogen content, analysed in accordance with <span class=\"std\"><span class=\"std-ref\">EN 12698-1<\/span><\/span> is needed.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><b>BS ISO 23071. Refractory products. Determination of reduced species in carbon containing refractories by XRD<\/b><\/p>\n<table class=\"shortdes-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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2020<\/td>\n<td>13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":318809,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-318800","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/318800","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\/318809"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=318800"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=318800"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=318800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}