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Iranian Journal of Materials Science and Engineering، جلد ۲، شماره ۴، صفحات ۹-۱۵
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی STRENGTH AND FRACTURE TOUGHNESS OF WHISKER REINFORCED DENTAL RESIN-BASED COMPOSITES
چکیده انگلیسی مقاله Enhancing the properties of dental resin composites is of interest to researchers. The objective of the present investigation was to improve the strength and fracture toughness of dental composites via addition of silicon carbide whiskers and substitution of commonly used filler materials with stabilized zirconia ceramic powder. It was also intended to study the effect of powder- to- whisker ratio on mechanical properties of the resultant composites. The flexural strength and fracture toughness of composite samples with different whiskers loadings were measured. It was found that addition of whiskers to the composites enhances the mechanical properties of the composites. The strength and fracture toughness increased by increasing the amount of whiskers. The flexural strength of a composite having 60wt% whisker and 10wt% zirconia powder was about 210 MPa while that of the composite having only 60wt% ceramic powder was about 110 MPa. The microstructural examinations revealed that reinforcing mechanism was whiskers pull-out as well as crack deflection.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله هادیان a m | hadian a m
department of materials science and engineering, tehran university, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

ابو fanas s h | abu fanas s h


نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-1-65&slc_lang=fa&sid=en
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زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه سرامیک
نوع مقاله منتشر شده Research paper
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