scholarly journals Tensile behavior of TiB-reinforced Ti matrix composites with different titanium powders

2016 ◽  
Vol 3 (4) ◽  
pp. 15-00571-15-00571 ◽  
Author(s):  
Hiroshi IZUI ◽  
Akinori OOTA ◽  
Konomi MATSUURA ◽  
Shoji KAMEGAWA
Keyword(s):  
Tensile Behavior ◽  
Matrix Composites ◽  
Titanium Powders

Tensile Behavior of 2.5D C/SiCN Composites

2012 ◽  
Vol 217-219 ◽  
pp. 67-70
Author(s):  
Yi Xia ◽  
Hong Fang Li
Keyword(s):  
Tensile Stress ◽  
Room Temperature ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Tensile Behavior ◽  
Matrix Composites ◽  
Stress Growth ◽  
C Fiber ◽  
Cracks Propagation ◽  
Thermal Stress Relaxation

Tensile behavior of C fiber reinforced amorphous SiCN ceramic matrix composites (C/SiCN ) were investigated by tensile machine. The microstructure morphologies were observed by scanning electron microscope. The results indicate that the tensile stress-strain curves of C/SiCN composites dispaly typical elastic deformation and cracks propagation stages. The 1500°C pre-sabilization treatment of C/SiCN in vacuum facilitates room temperature tensile stress growth. The higher treated temperature such as 1900°C is yet opposite. The reasons were attributed to thermal stress relaxation of C/SiCN after pre-stabilization treatment in vacuum.

Tensile Behavior of Epoxy Composites Reinforced with Thinner Sisal Fibers

2016 ◽  
Vol 869 ◽  
pp. 249-254
Author(s):  
Lazaro Araújo Rohen ◽  
Anna Carolina Cerqueira Neves ◽  
Frederico Muylaert Margem ◽  
Carlos Maurício Fontes Vieira ◽  
Fabio de Oliveira Braga ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Elastic Modulus ◽  
Polymer Matrix Composites ◽  
Low Cost ◽  
Natural Fibers ◽  
Tensile Behavior ◽  
Epoxy Composites ◽  
Matrix Composites ◽  
Synthetic Fibers ◽  
Sisal Fibers

The use of natural fibers as reinforcement in polymer matrix composites is replacing the use of synthetic fibers, especially from an environmental standpoint. Indeed, natural fibers are biodegradable and renewable, with no aggression to the environment. Moreover, they are worldwide abundant with relatively low cost. It was found that fine fibers of sisal, with the thinnest diameters can achieve tensile strength on the order of 1000 MPa. In this work, tensile specimens were prepared with 30% in volume of sisal fibers with diameters between 0.1 and 0.10mm incorporated in a continuous and aligned way into epoxy matrix. The results showed a significant increase in tensile strength and elastic modulus of the composites as a function of the incorporated amount of thinner sisal fibers.

Tensile Behavior of Glass/Ceramic Composite Materials at Elevated Temperatures

1987 ◽  
Vol 109 (3) ◽  
pp. 267-273 ◽  
Author(s):  
J. F. Mandell ◽  
D. H. Grande ◽  
J. Jacobs
Keyword(s):  
Composite Materials ◽  
Glass Ceramic ◽  
Elevated Temperatures ◽  
Interface Reaction ◽  
Strain Curve ◽  
Tensile Behavior ◽  
Matrix Cracking ◽  
Ceramic Fiber ◽  
Matrix Composites ◽  
Nonlinear Stress

This paper describes the tensile behavior of high-temperature composite materials containing continuous Nicalon ceramic fiber reinforcement and glass and glass/ceramic matrices. The longitudinal properties of these materials can approach theoretical expectations for brittle matrix composites, failing at a strength and ultimate strain level consistent with those of the fibers. The brittle, high-modulus matrices result in a nonlinear stress-strain curve due to the onset of stable matrix cracking at 10 to 30 percent of the fiber strain to failure, and at strains below this range in off-axis plies. Current fibers and matrices can provide attractive properties well above 1000°C, but composites experience embrittlement in oxidizing atmospheres at 800 to 1000°C due to oxidation of a carbon interface reaction layer. The oxidation effect greatly increases the interface bond strength, causing composite embrittlement.

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