Oxidation Resistance of Carbon/Carbon Composites

Isothermal and cyclic oxidation of TiAl composites

Titanium Aluminide and TiAl matrix composites reinforced with alumina fibers (PRD166) were fabricated by powder metallurgy. During isothermal oxidation at 950 and 1070 OC, composites containing PRD166 fibers exhibited larger weight gains than monolithic TiAI; the composites showed evidence of oxidation along the perimeter of the fibers. A fiber reaction, which was observed after oxidation in ai...

Low-cost Oxidation Resistant C-c Composites

Carbon-carbon (C-C) composites exhibit excellent mechanical, thermal and chemical properties. Their commercial applications are limited by high cost and poor oxidation protection. A low cost process was developed to fabricate C-C composites in one manufacturing step, which leads to substantial cost savings over conventional processing methods. This low cost manufacturing process has been combin...

THE OXIDATION RESISTANCE OF HIGH ALUMINUM HEAT RESISTANT STEELS

Abstract: In this research, the oxidation behaviour of high Aluminum heat resistant steel (%25Cr,%20Ni,%8Al) hasbeen evaluated at the temperature range of (1000-1300ºC).The results showed that there was no countinous healinglayer on the surface of the alloy when Al increased up to %5.5 and the oxidation resistance of steel decreased due toformation of spinel oxides on the surface.By increasing ...

Oxidation Resistance of Nanocrystalline Alloys

Blast resistance of unidirectional fiber reinforced composites

Three-dimensional transient deformations of a laminate comprised of several unidirectional fiber reinforced layers perfectly bonded to each other and subjected to a blast load are analyzed by the finite element method with an in-house developed, verified and fully validated code with rate-dependent damage evolution equations for anisotropic bodies. The continuum damage mechanics approach employ...