Ductility can be quantified by the fracture strain, which is the engineering strain at which a test specimen fractures during a uniaxial tensile test. Another commonly used measure is the reduction of area at fracture.The ductility of steel varies depending on the alloying constituents.his tensile test of a nodular cast iron demonstrates low ductility. In materials science, ductility is a solid material's ability to deform under tensile stress; this is often characterized by the material's ability to be stretched into a wire.
Spacer fabric is a specialized three-dimensional textile that uniquely facilitates air flow, breathability and lightweight shape support.pacer fabric is a specialized three-dimensional textile that uniquely facilitates air flow, breathability and lightweight shape support.
(Note: they use the variant spelling, gazaar.). Silk gazaar is a heavier sheer silk fabric with a smooth texture and crisp, matte finish. Essentially a four ply form of silk organza, silk gazaar was developed by the designer Balenciaga in the 1960s. Like organza, the fabric is perfect for lining as well as for sleeves, overlays or a back piece on evening wear or special occasion garments.