{"id":291281,"date":"2024-10-19T19:46:39","date_gmt":"2024-10-19T19:46:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-212222020\/"},"modified":"2024-10-25T16:48:18","modified_gmt":"2024-10-25T16:48:18","slug":"bs-iso-212222020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-212222020\/","title":{"rendered":"BS ISO 21222:2020"},"content":{"rendered":"

This document describes a procedure for the determination of elastic modulus for compliant materials using atomic force microscope (AFM). Force-distance curves on the surface of compliant materials are measured and the analysis uses a two-point method based on Johnson-Kendall-Roberts (JKR) theory. This document is applicable to compliant materials with elastic moduli ranging from 100 kPa to 1 GPa. The spatial resolution is dependent on the contact radius between the AFM probe and the surface and is typically approximately10-20 nm.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
12<\/td>\n4 Symbols (and abbreviated terms)
5 Review of contact mechanics
5.1 Introduction <\/td>\n<\/tr>\n
13<\/td>\n5.2 Hertzian model
5.3 Derjaguin-Muller-Toporov (DMT) Model <\/td>\n<\/tr>\n
14<\/td>\n5.4 Johnson-Kendall-Roberts (JKR) model
5.5 JKR\u2013DMT transition
6 Procedure of determination of elastic modulus
6.1 Introduction and limitations <\/td>\n<\/tr>\n
15<\/td>\n6.2 Measurement of deflection sensitivity and spring constant
6.3 Measurement of tip radius
6.4 Measurement of force-distance curve <\/td>\n<\/tr>\n
16<\/td>\n6.5 Force-distance curve conversion
6.6 JKR two-point method <\/td>\n<\/tr>\n
17<\/td>\n6.7 Uncertainties
6.8 Reporting results <\/td>\n<\/tr>\n
19<\/td>\nAnnex A (informative) Example measurements <\/td>\n<\/tr>\n
23<\/td>\nAnnex B (informative) Result of Inter-laboratory Comparison <\/td>\n<\/tr>\n
25<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Surface chemical analysis. Scanning probe microscopy. Procedure for the determination of elastic moduli for compliant materials using atomic force microscope and the two-point JKR method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":291286,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1000,2641],"product_tag":[],"class_list":{"0":"post-291281","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-040-40","7":"product_cat-bsi","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\/291281","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\/291286"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=291281"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=291281"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=291281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}