کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10224389 | 1701101 | 2018 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Loop energy: A useful indicator of the hardness of minerals from depth-sensing indentation tests
ترجمه فارسی عنوان
انرژی حلقه: یک نشانگر مفید از سختی مواد معدنی از آزمون عمق سنجش تنه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Depth-sensing indentation tests were performed to obtain the loop energy (equivalent to the energy consumed to produce the indentation) and the residual depth of the indentation using a triangular pyramidal diamond indenter for the minerals in Mohs hardness scale except for diamond, as well as other minerals (apophyllite, forsterite, and tourmaline), at a maximum load ranging from 30 to 100â¯mN. A new graphic presentation is proposed that shows the hardness of minerals in log(penetration depth)âlog(loop energy) space. The data for each mineral under different loads give a straight regression line with a slope of 2.6-2.9 (except for talc, which yields a slope of 2.2), while the data for different minerals under a given load yield a straight regression line with a slope of 1.1-1.2. A theoretical analysis of ideal materials, in terms of log(penetration depth)âlog(loop energy) space, shows the existence of two series of parallel regression lines with slopes of 3 (data for each mineral at different loads) and 1 (data for different minerals under a given load). The results show a slight deviation between the measured and theoretical slopes, probably reflecting a progressive change in the mechanical properties of the minerals during the indentation tests.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Structural Geology - Volume 117, December 2018, Pages 96-104
Journal: Journal of Structural Geology - Volume 117, December 2018, Pages 96-104
نویسندگان
Toshiaki Masuda, Yasutomo Omori, Ryoko Sakurai, Tomoya Miyake, Mirai Yamanouchi, Yumiko Harigane, Atsushi Okamoto, Katsuyoshi Michibayashi,