Bond strength to enamel and flexural strength of fiber-reinforced composites

2010 ◽  
Vol 26 ◽  
pp. e20-e21
Author(s):  
M. Beloica ◽  
C. Goracci ◽  
N. Chieffi ◽  
A. Vichi ◽  
Z.R. Vulicevic ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Bond Strength ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced

Original and repair bond strength of fiber-reinforced composites in vitro

2014 ◽  
Vol 30 (4) ◽  
pp. 456-462 ◽  
Author(s):  
Cornelia Frese ◽  
Christian Decker ◽  
Johanna Rebholz ◽  
Kathrin Stucke ◽  
Hans Joerg Staehle ◽  
...  
Keyword(s):  
Bond Strength ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced

scholarly journals Effects of silkworm fiber position on flexural and compressive properties of silk fiber-reinforced composites

2018 ◽  
Vol 51 (2) ◽  
pp. 57
Author(s):  
Ariyani Faizah ◽  
Dendi Murdiyanto ◽  
Yulita Nur Widyawati ◽  
Narawidya Laksmi Dewi
Keyword(s):  
Flexural Strength ◽  
Mechanical Strength ◽  
Compression Strength ◽  
Testing Machine ◽  
Silk Fiber ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Side Group ◽  
Fiber Reinforced ◽  
Fiber Position

Background: Fiber-reinforced composites represent a combination of fiber-reinforced composite materials. The availability of fiber within dentistry in Indonesia is limited and, therefore, requires lengthy advance ordering. The increasing use of fiber derived from natural materials, such as silk, is of greater concern due to its considerable mechanical strength, biocompatibility and wider availability. The application of fiber will increase the mechanical strength of fiber-reinforced composites, including both flexural and compression strength. One factor affecting the mechanical strength of fiber is the laying of fiber or fiber position. Purpose: The purpose of this research is to establish the influence of silkworm fiber position on both the flexural and compression strength of silk fiber-reinforced composites. Methods: Flexural strength and compression strength tests using a universal testing machine involved the division of the research population into three treatment groups: compression side, neutral side and tension side. Results: The results of data analysis indicated that the tension side group possessed the highest flexural strength (121.42 MPa), while the compression side group demonstrated the highest compression strength (337.65 MPa). A one-way ANOVA analysis test produced a significant result of p = 0.000 (<0.05) both for silkworm fiber position effect and compression strength of silk fiber reinforced composites. Conclusion: The position of silkworm fiber will affect its flexural strength as well as that of the compression of silk fiber-reinforced composites.

High Temperature Mechanical Property of Al2O3 Coated Quartz-Fiber Reinforced Methyl Silicon Resin Composites

2007 ◽  
Vol 351 ◽  
pp. 135-141 ◽  
Author(s):  
Lei Wang ◽  
Yu Dong Huang ◽  
Li Liu
Keyword(s):  
High Temperature ◽  
Flexural Strength ◽  
Fiber Reinforced Composites ◽  
Processing Temperature ◽  
Resin Composites ◽  
Reinforced Composites ◽  
Quartz Fiber ◽  
Fiber Reinforced ◽  
Coated Fiber ◽  
Silicon Resin

In the present work, Al2O3 was coated on the quartz fiber by the sol-gel method to improve the high temperature mechanical properties of the quartz fiber/methyl silicon resin composites. The X-ray diffraction results showed that the crystalline property of the Al2O3 coating increased with the processing temperature. Before 500oC treated, the Al2O3 coated fiber reinforced composites have lower flexural strength than the commercial fiber reinforced one. While after 500oC treated, the flexural strength of Al2O3 coated fiber reinforced composites was higher than the uncoated reinforced one. And the flexural strength for the 400oC treated Al2O3 coated fiber reinforced composites was higher than that of the 600oC treated one. The mechanism of the crack propagation in the purchased and Al2O3 coated fiber reinforced composites was also studied through scanning electronic microscopy (SEM).

Effect of mixing parameters, postcuring, and stoichiometry on mechanical properties of fiber reinforced epoxy–clay nanocomposites

2018 ◽  
Vol 233 (7) ◽  
pp. 1363-1374 ◽  
Author(s):  
Bikramjit Sharma ◽  
Rahul Chhibber ◽  
Rajeev Mehta
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Clay Minerals ◽  
Fiber Reinforced Composites ◽  
Clay Nanocomposites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Processing Variables

The influence of processing variables was experimentally studied for glass fiber reinforced epoxy–clay nanocomposites manufactured using vacuum-assisted wet layup method. The tensile strength, flexural strength, and interlaminar shear strength of these nanocomposites were significantly influenced by the processing variables including the temperature of resin–clay mixture, speed of homogenization, and ultrasonic probe amplitude during premixing of clay minerals in epoxy. The glass transition temperature of glass fiber reinforced composites increased with incorporation of clay minerals in epoxy. Also, the postcuring of the laminates was carried out at three different temperatures, e.g. 100, 130, and 150 ℃ for 3 h. A decrease in tensile modulus, tensile strength, and flexural strength of nanocomposites postcured at 130 and 150 ℃ was observed. Also, the use of non-stoichiometric epoxy resin and hardener ratios had an adverse effect on mechanical properties of fiber reinforced epoxy–clay nanocomposites. In fiber reinforced composites incorporating clay minerals, a uniform dispersion of clay minerals besides a strong interfacial adhesion between clay minerals and polymer and optimum conditions of curing of matrix is a crucial aspect for improved performance over conventional fiber reinforced composites.

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