Effect of fiber content on single tow SiC minicomposite mechanical and damage properties using acoustic emission

Prediction of the Mechanical Behavior of a Minicomposite Based on Grey Verhulst Models

“…(a -bε (4) )ε . This is also consistent with the fact that the minicomposites studied has the largest ultimate tensile strain of about 0.7 % at the final failure.…”

“…Fortunately, a cost-effective approach has been developed most recently by using minicomposites [4]. A large number of specimens can be fabricated at relatively low cost with short time, which makes it attractive for obtaining a robust set of experimental data.…”

A comparative study on Cf/PyC/SiC minicomposites prepared via CVI process for hypersonic engine application

“…The long duration of the matrix densification process involved in the fabrication of 2D/3D test specimens for property evaluation is the major concern for the initial selection of a fiber/matrix system. Minicomposite approach, using 1D CMC has been developed with an aim to reduce the time required for the initial selection of fiber/matrix system in material development . The approach has the following advantages: (i) reducing the densification time by employing a 1D yarn as the fiber preform, (ii) 1D architecture, which avoids fiber orientation effects on tensile strength, and (iii) easy application of micromechanical models over the mechanical test data.…”

“…Minicomposite approach, using 1D CMC has been developed with an aim to reduce the time required for the initial selection of fiber/matrix system in material development. [15][16][17] The approach has the following advantages: (i) reducing the densification time by employing a 1D yarn as the fiber preform, (ii) 1D architecture, which avoids fiber orientation effects on tensile strength, and (iii) easy application of micromechanical models over the mechanical test data. C f /SiC CMCs are being developed and tested for hypersonic air breathing vehicles due to the inherent advantage of the materials as stated above.…”

Enhanced oxidation resistance of SiC/SiC minicomposites via slurry infiltration of oxide layers

“…Minicomposites offer a less expensive and quicker route to evaluate composites in the CVI SiC system. They have been investigated as a model composite for fiber/interphase/matrix interactions under various stressed-oxidation conditions since the minicomposite corresponds to the elementary scale of a macrocomposite 9,10,11,12 . In this case, the minicomposite serves as the porous medium with the same CVI SiC matrix layer into which the oxide coatings infiltrate and bond to as in the case of a woven SiC fiber-reinforced CVI SiC matrix preform.…”