Thermoplastics are polymers, which soften (becomes pliable and plastic) and melt when heated. In the melted conditions thermoplastics may be formed by various methods (injection…

Elastomers are polymers possessing high elasticity – may be reversibly stretched at high degree. Elastomers consists of long lightly cross-linked molecules. Common elastomers are: Polyisoprene…

Glass transition is the transition of an amorphous substance from its soft and pliable state to a hard and brittle (glassy) state. Glass transition vs….

Polymer is a substance (natural or synthetic), molecules of which consist of numerous small repeated chemical units (monomers) linked to each other in a regular…

There are three general groups of polymer materials: Elastomers Thermoplastics Thermosets Elastomers Elastomers are polymers possessing high elasticity – may be reversibly stretched at high…

Composite materials reinforced (filled) with ceramic particles/fibers (e.g., alumina) are extensively used in the applications in which tribological properties (wear rate, coefficient of friction) are…

Strong ionic or covalent bonds between the atoms of ceramic materials determine their strength, hardness, high melting point, modulus of elasticity (rigidity), temperature and chemical…

Sol-gel Infiltration – description Sol-Gel process of a fabrication of Ceramic Matrix Composites involves preparation of the matrix from a liquid colloidal suspension of fine…

Slurry is a dispersion of ceramic particles in a liquid carrier, which may also contain additives such as binders and wetting agents. Slurry Infiltration method…

Direct Metal Oxidation (DIMOX) – description Direct metal oxidation process (Dimox) of Ceramic Matrix Composites fabrication is a type of Reactive Melt Infiltration (RMI) technique,…