کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1429536 987175 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of horns derived from three domestic bovines
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Microstructure and mechanical properties of horns derived from three domestic bovines
چکیده انگلیسی


• Effects of water, sampling position and orientation of bovid horns were studied.
• Differences in microhardness of horns are owing to the content of metal elements.
• Mechanical property of buffalo horn is not dependent on the source of buffalo.

The microstructure and mechanical properties of horns derived from three domestic bovines (buffalo, cattle and sheep) were examined. The effects of water content, sampling position and orientation of three bovid horns on mechanical properties were systematically investigated by uniaxial tension and micron indentation tests. Meanwhile, the material composition and metal element contents were determined by Raman spectroscopy and elemental analysis respectively, and the microstructures of the horns were measured by scanning electron microscopy (SEM). Results show that the mechanical properties of horns have negative correlation with water contents and depend on sampling position and orientation. The spatial variations of the mechanical properties in horns are attributed to the different keratinization degrees in the proximal, middle and distal parts. And the mechanical properties of horns in the longitudinal direction are better than those in transverse. Among the three kinds of horns, the mechanical properties of buffalo horn are the best, followed by cattle horn, and those in sheep horn are the worst. This is due to the differences in material composition, metal element, and the microstructures of the horns. But the mechanical properties of buffalo horns are not dependent on the source of the buffalo. Therefore, regular engineered buffalo keratinous materials with standard mechanical properties can be obtained from different buffalo horns by using proper preparation methods.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 33, Issue 8, 1 December 2013, Pages 5036–5043
نویسندگان
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