{"id":318560,"date":"2024-10-19T22:00:17","date_gmt":"2024-10-19T22:00:17","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-211132018\/"},"modified":"2024-10-25T20:18:06","modified_gmt":"2024-10-25T20:18:06","slug":"bs-iso-211132018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-211132018\/","title":{"rendered":"BS ISO 21113:2018"},"content":{"rendered":"
This document describes a test method for the determination of the fracture toughness of monolithic ceramic thin plates at room temperature by the single-edge precracked plate method or the single-edge V-notch plate method.<\/p>\n
This document is intended for use with monolithic ceramics and whisker- or particulate-reinforced ceramics which are regarded as macroscopically homogeneous. It does not include continuous-fibre-reinforced ceramics composites. This document is applicable to ceramic thin plates with a thickness of 0,2 mm to <1,0 mm.<\/p>\n
The single-edge V-notch plate method can be applied to monolithic ceramics with a grain size larger than about 1 \u03bcm. The use of this method is inappropriate for yttria tetragonal zirconia polycrystal material (Y-TZP), which consists of homogeneous fine submicron grains. The method might also be unsuitable for some other very tough or soft ceramics in which a sharp crack does not form at the root of the V-notch.<\/p>\n
This document is for material development, material comparison, quality assurance, characterization, reliability and design data generation.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 4 Principle 5 Apparatus 5.1 Bend testing machine. 5.2 Bend test fixture. <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 6 Test piece dimension and preparation 6.1 Shape and dimensions of test piece <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 6.2 Test piece preparation 6.3 Number of test piece 7 Test methods 7.1 Three or four-point bending fracture test 7.2 Measurement of thickness and width of test piece 7.3 Measurement of precrack length 8 Evaluation of validity of measured value <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 9 Calculation <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 10 Test report <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Annex A (normative) Test piece preparation for the precracked plate method <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | Annex B (normative) Test piece preparation for the V-notch plate method <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | Annex C (normative) Measurement of precrack length and evaluation of validity of measured value for the precracked plate method <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for fracture toughness of monolithic ceramic thin plates at room temperature<\/b><\/p>\n |